Audiovisual Design Standards
Audiovisual Design Standards
October 2011
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
Table of Content
Executive Summary ....................................................................................................................................... 4
More information .................................................................................................................................. 4
Review .......................................................................................................................................................... 4
1.1 Room design for learning and teaching spaces ......................................................................................... 4
1.1.1 Sight lines and screen-viewing distances ....................................................................................... 4
1.1.2 Vertical and horizontal projector placement .................................................................................. 5
1.1.3 Minimum projector brightness ...................................................................................................... 5
1.1.4 Minimum projector contrast ratio ................................................................................................. 6
1.1.5 Projector, display and screen aspect ratio...................................................................................... 6
1.1.6 Dual displays ................................................................................................................................. 6
1.1.7 Flat panel technology .................................................................................................................... 6
1.2 Acoustical design in learning and teaching spaces .................................................................................... 6
1.2.1 Acoustic performance ................................................................................................................... 6
1.2.2 Ambient sound levels .................................................................................................................... 7
1.2.3 Reverberation times...................................................................................................................... 7
1.3 Lighting design in learning and teaching spaces ........................................................................................ 8
1.3.1 Relevant lighting standards ........................................................................................................... 8
1.3.2 Lighting control and lighting zones ................................................................................................ 8
1.3.3 Ambient light spill on projector screen .......................................................................................... 8
1.3.4 Target light level ........................................................................................................................... 9
1.3.4 Occupancy sensing ........................................................................................................................ 9
1.3.5 Lighting control system and AV control system integration ............................................................ 9
1.4 Audio system design in learning and teaching spaces ............................................................................. 10
1.4.1 Audio replay and voice reinforcement ......................................................................................... 10
1.4.2 Speaker system selection and placement .................................................................................... 10
1.4.3 Audio mixing ............................................................................................................................... 11
1.4.4 Power amplifiers ......................................................................................................................... 11
1.4.5 Equipment installation ................................................................................................................ 11
1.4.6 Hearing augmentation and induction loops ................................................................................. 11
1.4.7 Grounding ................................................................................................................................... 12
1.4.8 Integration into EWIS .................................................................................................................. 12
1.5 Lecture recording systems...................................................................................................................... 12
1.5.1 Audio recording .......................................................................................................................... 12
1.5.2 Screen capture ............................................................................................................................ 13
1.5.3 Camera provision ........................................................................................................................ 13
1.5.4 Dual screen recording ................................................................................................................. 13
1.6 Whiteboards and writing surfaces .......................................................................................................... 14
1.6.1 Standard specifications and board height .................................................................................... 14
1.6.2 Multiple sliding boards ................................................................................................................ 14
1.6.3 Board lighting ............................................................................................................................. 14
1.7 Centralisation and structured cabling systems ........................................................................................ 14
1.7.1 Audiovisual centralisation approach ............................................................................................ 15
1.7.2 Centralisation exceptions ............................................................................................................ 15
1.7.3 Signal delivery and cabling .......................................................................................................... 15
1.7.4 UTP converters ........................................................................................................................... 16
1.7.5 Power management, climate control and risk mitigation ............................................................. 16
1.8 Specific room types ................................................................................................................................ 16
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1.8.1 Lecture theatres (tiered teaching spaces) scope ........................................................................... 17
1.8.2 Class rooms (flat floor spaces) scope ........................................................................................... 18
1.8.3 Meeting rooms (videoconference rooms if required) scope ......................................................... 19
1.8.4 Flexible teaching spaces scope .................................................................................................... 19
1.9 Audiovisual equipment specifications .................................................................................................... 20
1.9.1 Projection screens ....................................................................................................................... 20
1.9.2 Data projectors – General minimum specification........................................................................ 20
1.9.3 Data projectors – Large venues (Auditoriums) ............................................................................. 21
1.9.4 Data projectors – Lecture theatres .............................................................................................. 21
1.9.5 Data projectors - Classrooms ....................................................................................................... 21
1.9.6 Flat panel displays....................................................................................................................... 22
1.9.7 Projector and flat panel mounts .................................................................................................. 22
1.9.8 Central controller ........................................................................................................................ 22
1.9.9 AV Control system interface (Touchpanel) ................................................................................... 23
1.9.10 Audio and video router ............................................................................................................. 23
1.9.11 Scalar ........................................................................................................................................ 23
1.9.12 Audio signal processing ............................................................................................................. 23
1.9.13 Speaker systems ....................................................................................................................... 24
1.9.14 Amplifiers ................................................................................................................................. 24
1.9.15 Lectern microphones ................................................................................................................. 24
1.9.16 Radio microphones ................................................................................................................... 24
1.9.17 Document cameras ................................................................................................................... 24
1.9.18 DVD/Blu-Ray players ................................................................................................................. 25
1.9.19 Desktop Computer .................................................................................................................... 25
1.9.20 Cabling and management .......................................................................................................... 25
1.9.21 Cable labelling........................................................................................................................... 25
1.9.22 Connector types ........................................................................................................................ 25
1.9.23 Equipment rack ......................................................................................................................... 26
1.10 Service Desk phone in learning and teaching spaces ............................................................................. 26
1.10.1 In-house phone ......................................................................................................................... 26
1.10.2 Outside of venue (at door) phone .............................................................................................. 26
1.11 Documentation .................................................................................................................................... 26
1.11.1 Construction drawings .............................................................................................................. 26
1.11.2 Post contract documentation .................................................................................................... 27
1.12 Testing, commissioning and handover .................................................................................................. 27
Glossary and Definitions .............................................................................................................................. 27
About this Document .................................................................................................................................. 29
Appendix 1 – UTAS AV Design Standards Metric Table ................................................................................. 29
Appendix 2 – Mobile Lecture Recording Solutions ........................................................................................ 45
Appendix 3 – Lectern Design ........................................................................................................................ 47
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Audiovisual Design Standards
Executive Summary
The purpose of this document is to set out the definition of Audiovisual (AV) Standards for the
University of Tasmania (UTAS) and the application of those standards across all supported learning and
teaching spaces. It specifies the standardisation and categorisation of audiovisual equipment, design
standards, learning and teaching spaces and amenities available to all staff, students and associates.
The objective of these standards is to define:
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the minimum AV requirements for all learning and teaching spaces
a framework to standardise AV technology and infrastructure
to provide a means of identifying and upgrading, where required, any sub-standard learning and
teaching spaces.
All AV technology and infrastructure is to be of a standardised environment in all supported learning
and teaching spaces. It is the purpose of this document to identify this standard and to provide a
framework that all learning and teaching spaces are to adhere to.
More information
For further information, contact Frank Andrews:
Email:
frank.andrews@utas.edu.au
Review
In line with the Policy Development and Review Procedure (Section 3.1.14 Stage 14 – Review), this
document will be reviewed in its entirety every three (3) years. Consideration for the review of this
document will be governed by the mechanisms within the Policy Development and Review Procedure.
Minor amendments, pertaining to the progression of technology and the redefining of technical
terminology and specifications will occur every six (6) months and are undertaken as an operational
requirement of AV Services, ITR.
1.1 Room design for learning and teaching spaces
Room design is integral to providing a best practice solution for all learning and teaching spaces. It is
recommended that at the project design stage all considerations of the following provisions are entered
into, to produce the best possible solution for these spaces. This is the responsibility of the appropriate
organisational unit who is accountable for the room design features in a given learning and teaching
space.
1.1.1 Sight lines and screen-viewing distances
Learning and teaching spaces at UTAS require the capability to display information by means of data
projection and other display technology. Consideration and advice to the responsible organisational unit
at the planning stage of allowable sight-lines and screen viewing distances is fundamental to the success
of any learning and teaching space. Having these standards accepted and incorporated at the design
stage forms a critical aspect to delivering an acceptable level of information display recognition by the
viewer.
Consideration must be given to the ability to view and interpret the information displayed from all areas
of the learning and teaching space. These specifications form the nucleus of any design for learning and
teaching spaces.
The following guidelines on appropriate sight-lines and screen-viewing distances are to be considered
when designing, refurbishing and upgrading any learning and teaching space:
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The maximum viewing distance can be determined by the height of the screen, which will, in turn,
determine the furthest allowable viewing position at a factor of 5.3. This is displayed as the
following:
Screen Height = the furthest allowable viewing position/5.3
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The minimum viewing distance is determined by the closest viewer position (at the front row,
centre). This position shall not be any closer than twice the screen height at that position.
The maximum allowable horizontal viewing angle will be no more than 45 degrees to the centre
sight-line of the screen.
The maximum allowable vertical viewing angle will be no more than 15 degrees to the centre of the
display measured from the front centre viewing position.
The bottom edge of the screen shall be no less than 1.3 metres above the floor.
The minimum ceiling height will be determined by the maximum viewing distance rule and the
screen height above the floor.
In learning and teaching spaces existing geometry may prevent this specification from being met.
Consideration will need to be given to determining the best outcome for sight-lines and screen-viewing
distance when refurbishing. Special provisions to meet this standard may be needed.
1.1.2 Vertical and horizontal projector placement
Careful consideration needs to be given to the placement of the projector. The placement of the
projector is determined by the following guidelines:
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The vertical position of the projector must not obstruct the view of the screen for any viewer in that
space.
The vertical and horizontal placement should adhere to the projector manufacturer’s recommended
vertical position.
Use of key-stoning must be kept to a minimum.
The placement of the projector must provide ease of access for the performance of maintenance
and repairs.
Consideration to reduce projection glare in lecturer’s eyes.
UTAS approved security mount must be used.
In existing learning and teaching spaces current geometry may prevent this specification from being
met. Consideration will need to be made to determining the best outcome for the viewing of
information on these displays and special provisions to this standard may need to be met.
1.1.3 Minimum projector brightness
The recommended projector brightness is determined by screen size, which, in turn, is proportional to
the venue size. The following guidelines are to be taken into consideration when deciding minimum
projector brightness:
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The targeted projected Lux for small to medium sized venues, where screen sizes are no more than
3.5 metres diagonally, must be no less than 500Lux, preferably 600+ Lux.
The target projected Lux for larger venues, where screen sizes are more than 3.5 metres diagonally,
must be no less than 315Lux, preferably 500+ Lux.
These specifications will help to determine the correct projector for the venue and will help to identify
the ANSI Lumens specification for that projector.
In larger venues, reduction in ambient light at and around the screen will need to be considered to
reduce loss of projected Lux on the screen. This is addressed in the Ambient light spill on projector
screen provision of this Standard.
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1.1.4 Minimum projector contrast ratio
Contrast ratios will allow for the legibility of information that is projected on the screen from all viewing
angles within the learning and teaching space.
The following guidelines outline the minimum required contrast ratio:
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Text and numerals, when displayed on the projector screen, must meet an aspect ratio of 5:1.
Photos, pictures and any graphical representation, when displayed on the projector screen, must
meet a contrast ratio of 10:1.
Videos must display on the projector screen at a contrast ratio of 25:1.
These measurements are defined as the ratio between the measured values of incident light on the
projection screen when outputting full field white and full field black. This takes into consideration all
sources of light, both projected and ambient.
1.1.5 Projector, display and screen aspect ratio
Due to the move away from 4:3 aspect ratios and the subsequent phasing out of the production and
support of these devices, and the adoption of a high definition environment, the standard aspect ratio
for displays in centrally-managed learning and teaching spaces will be a minimum of 16:9.
1.1.6 Dual displays
Centrally-managed learning and teaching spaces are to incorporate dual displays where practical and
where this requirement is stipulated in the design process.
The following guidelines detail the requirements for dual displays implementation:
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Dual projection with dual displays is a requirement for lecture theatres.
Not all venues are able to meet these requirements and may need only one single projection, single
image configuration. A variation to this provision can be sought from the project manager.
1.1.7 Flat panel technology
Flat panel technologies can be implemented into small venues. These venues are defined by the Specific
room types section of this standard.
The following guidelines are to be followed for installation of flat panels:
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Placement is in accordance with all rules that govern the placement of projector screens, see
Minimum projector brightness, Minimum projector contrast ratio, Vertical and horizontal projector
placement, Sight lines and screen-viewing distances and Projector, display and screen aspect ratio.
Flat panel technology is the preferred visual display in meeting rooms that perform
videoconferencing functions.
1.2 Acoustical design in learning and teaching spaces
Acoustical design is integral to providing a best practice solution. It is recommended that at the project
design stage that an acoustic consultant be contracted to advise on and recommend the best possible
solution.
1.2.1 Acoustic performance
It is essential to the delivery of best acoustic performance that the acoustical design is considered when
upgrading, refurbishing or designing any new or existing learning and teaching space.
Acoustic performance in learning and teaching spaces must comply with the following Australian
Standards:
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AS/NZS 2107:2000 Acoustics – Recommended design sound levels and reverberation times for
building interiors
AS/NZS ISO 717.1:2004 Acoustics - Rating of sound insulation in buildings and of building elementsAirborne sound insulation.
Acoustical performance must be measured using the Speech Transmission Index (STI). No learning and
teaching space may score less than ‘good’ with an STI less than 0.6. The desired score for acoustical
performance for any venue is ‘excellent’ with an STI of 1.0. The signal to noise ratio is to be kept to a
minimum with a benchmark 25dB(A) to ensure audio intelligibility.
1.2.2 Ambient sound levels
The level of ambient sound must be kept to a minimum. Conversely, a sound-dead room is to be
avoided as well. Ambient noise generators such as air-conditioning units and mechanical delivery
devices located near the learning and teaching space must be avoided or mitigated at best. Advice from
the acoustic consultant must be adhered to in the design process of any new or existing space to deliver
acceptable levels of ambient sound.
The following guidelines detail the acceptable and best practice standards for ambient sound. The room
types are defined as per the Specific Room Types section in this Standard:
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Room type: Lecture theatre (Tiered Teaching Spaces) must have a minimum ambient noise level of
45db(A) and a best practice level of 35dB(A)
Room type: Classrooms (Flat Room Spaces) must have a minimum ambient noise level of 35db(A)
and a best practice level of 30dB(A)
Room type: Meeting Rooms (Videoconference/Board Rooms) must have a minimum ambient noise
level of 40db(A) and a best practice level of 35dB(A)
Room type: Flexible Teaching Spaces must have a minimum ambient noise level of 35db(A) and a
best practice level of 30dB(A)
1.2.3 Reverberation times
Reverberation and all associated audio anomalies such as standing waves, early and late reflections
need to be considered.
The following guidelines, as defined by the Australian Standard AS 2107-2000, are to be considered to
mitigate reverberation issues in these spaces. These are meant as general guidelines only as the RT60
will vary depending on room size:
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Room type: 50 seat classrooms will have a maximum reverberation time of 1.0 second and a best
practice level of 0.7 seconds.
Room type: Lecture theatres will have a maximum reverberation time of 1.0 second and a best
practice level of 0.7 seconds
Room type: Flexible teaching spaces will have a maximum reverberation time of 0.6 seconds and a
best practice level of 0.4 seconds
Room type: Conference and meeting rooms will have a maximum reverberation time of 0.7 seconds
and a best practice level of 0.6 seconds
The reduction of shiny surfaces, the use of sound traps and the mitigation of box or rectangular rooms
and regular surfaces will reduce the occurrence of standing waves and alleviate most reverberation
issues. Reverberation is unavoidable but measures need to be in place to minimise its effect, especially
where it makes the delivery of audio un-intelligible.
Technology-based solutions are available to address these issues, such as a focussed sound field solution
through the use of array-style speaker systems. These solutions can be implemented only in the case
where no other option is available.
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1.3 Lighting design in learning and teaching spaces
It is recommended that at the project design stage a lighting consultant is contracted to advise and
recommend the best possible solution.
1.3.1 Relevant lighting standards
Lighting is governed by the Australian and New Zealand Standards - AS/NZS 1680 for Lighting (as
amended) and the government and building codes.
The sections of the standard that must be adhered to are as follows:
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AS/NZS 1680.2.1:2008 (as amended) Interior and workplace lighting - Specific applications Circulation spaces and other general areas.
AS/NZS 1680.2.2:2008 (as amended) Interior and workplace lighting - Specific applications - Office
and screen-based tasks.
AS/NZS 1680.2.3:2008 (as amended) Interior and workplace lighting - Specific applications Educational and training facilities.
1.3.2 Lighting control and lighting zones
Lighting will need to be controlled centrally through the AV control system. This will require the zoning
of particular lights on particular circuits to allow control of the lighting.
The following points detail the guidelines to follow when considering the implementation of lighting that
will be controlled and zoned by the AV control system in supported UTAS learning and teaching spaces.
The number of lighting zones will be dependent on the room type:
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Front lights and board lights that spill directly onto the screen and white board respectively.
Directional lighting to illuminate the lectern position or other front of house ‘task’ areas. This may
incorporate the use of multiple lighting zones to cover larger venues front-of-house areas and/or
‘task’ areas. These lights will not produce any spill on to the screen and will have the ability to
control the beam onto the specific intended area.
Aisle, step and emergency lights for venues that have steps and/or aisles. This is a legislative
requirement (General Fire Regulations 2000 S.R. 2000, No. 236) and must be part of the design.
Room lights depending on the size and purpose of the room and may have multiple zones to
configure the room with differing levels of illumination in different areas of that room.
All the zones that are to be controlled by the AV control system can either have a dimmable or switching
function depending on the role of the lighting and the size of the venue. Task-specific lighting may be
switchable, whereas room lighting will need to be dimmable.
It is the responsibility of the appropriate organisational unit to provide, on recommendation from the
lighting consultant, the correct light fittings with the capacity and compatibility to be controlled by the
AV control system.
1.3.3 Ambient light spill on projector screen
An acceptable amount of ambient light on the projector screen is determined by the dimensions of the
room, ambient illumination measured on the screen and the projected versus ambient light ratio.
The following guidelines provide acceptable ambient light measurements:
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The amount of ambient illumination on the screen in small venues will be no more than 100Lux
maximum.
The amount of ambient illumination on the screen in large venues will be no more than 60Lux
maximum.
Consideration must be given to light-coloured chattels, furniture and flooring near projection screens.
These may inadvertently reflect an unacceptable level of ambient light onto the screen.
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Consideration must also be given to the location of light-generating devices such as computer screens
and document cameras near the projection screens, as these too might inadvertently reflect and/or
project an unacceptable amount of ambient light onto the screen.
It is a requirement that a lighting consultant be engaged to provide the best solution for lighting.
Computer modelling at the design stage is to be undertaken to determine if the lighting designs will or
will not provide acceptable levels of spill light on the projection screen and the designs must be
amended accordingly until these provisions are met.
External ambient light sources need to be controlled. Blinds and/or curtains are to be used to control
ambient light sources. Motorised blinds and/or curtains are to be installed in all venues and must be
integrated into the AV control system.
1.3.4 Target light level
It is a requirement in learning and teaching spaces to have programmable lighting modes to accompany
differing stages of room use.
The following guidelines stipulate these modes and define what the lighting state is to be:
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Full - Full room lights. Entry and exit mode. 320-360 Lux.
AV – Slightly dimmed room lights. Appropriate task areas lights on. Front lights off. Projection and
note taking mode. Min light level 240 Lux.
Dimm – Fully dimmed room lights. All other lights off. Projection mode. 60-80 Lux.
Off – No room lights. No other lights except aisle and step lights. Presentation mode.
1.3.4 Occupancy sensing
The lighting system must have the capability to monitor occupancy in the room and perform
accordingly.
The following guidelines details the lighting system actions required for differing states of occupancy
detection:
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Full room lights when triggered. This desired state is stipulated as Full in the Target light level
provision.
Turn off all lighting when no motion is detected after 90mins as per energy management
requirements.
The occupancy sensing is complementary to the AV control system and is to be integrated into, and
must be compatible with, the Building Management System (BMS) to trigger events controlled by this
system such as climate control.
1.3.5 Lighting control system and AV control system integration
Lighting systems must integrate into the AV control system, the BMS and the Emergency Warning and
Information System (EWIS). These systems can interface either by a serial or IP interface.
The following guidelines outline the necessary functionality and compatibility of the lighting control
system:
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The AV control system must be able to control all lighting and light control devices such as blinds
and curtains.
The lighting control system must be able to trigger BMS settings such as occupancy sensing and
climate control.
Integration of the lighting control system is to be considered at the design stage for any new or existing
learning and teaching space to allow for the proper selection of a system that will meet all of these
guidelines.
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1.4 Audio system design in learning and teaching spaces
At all stages of design for learning and teaching spaces, audio system design is of critical consideration
and will have to deliver the best audio solution for these spaces.
Audio system design and all associated equipment implemented must comply with performance and
installation standards defined by:
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AS/NZS 60065:2003 & Amendment No. 1 (January 2008) Audio, video and similar electronic
apparatus—Safety requirements.
AS 60118.4-2007 Hearing Aids – Magnetic Field strength in audio-frequency induction loops for
hearing aid purposes.
Disability (Access to Premises – Buildings) Standards 2010.
These standards will be complied with when considering the design, installation and maintenance of all
audio systems.
1.4.1 Audio replay and voice reinforcement
The capability of audio replay from all sources and voice reinforcement will be incorporated into larger
classrooms and lecture theatres as set out in the Specific room type section in this standard.
The following guidelines outline the requirements for audio replay and voice reinforcement:
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Rooms that are classified as learning and teaching spaces are to incorporate a Digital Signal
Processor (DSP) to allow for the dedication of the required outputs to MyMedia Service.
Rooms classified only learning (tutorial) spaces will only require an Audio Relay capability.
Voice reinforcement systems are to have at least four microphone input facilities.
If there is a requirement for a hearing induction loop as specified in the Hearing augmentation and
inductions loop provision, refer to the provision for details.
Background sounds will be at least 20 decibels lower than foreground sounds, or approximately four
times quieter than the foreground speech.
Further technical specifications of the audio replay and voice reinforcement systems can be found in the
Audiovisual equipment specification section of this standard.
1.4.2 Speaker system selection and placement
Selection of speaker systems for implementation in learning and teaching spaces will vary from venue to
venue depending on size and function. This relates to the actual audio design required to provide full
audio coverage and high intelligibility of voice reinforcement to the listening area, for those spaces that
require it.
Provisions will need to be made at the acoustical design stage, with the assistance of computer
modelling, to determine the correct number, the placement and technical specifications of the speakers
to meet the requirements in this provision.
The following is a set of guidelines that provide a framework to assist in the selection and placement of
the speaker system:
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A targeted distribution of voice reinforcement at all listening positions at a minimum of 65dBA.
A targeted distribution of audio replay at all listening positions at a minimum of 80dBA.
Measurement of audio coverage is determined by the ANSI/INFOCOMM 1M-2009 Standard.
Consideration of complementary speaker systems (distributed speakers or speaker arrays),
depending on the venue’s geometry and acoustical performance to provide compliance with audio
coverage requirements.
A minimum of two Front of House (FOH) speakers in all venues.
Zoning and speaker delay systems to be considered where there are issues with FOH and distributed
speaker systems providing an unintelligible amount of delay variation to the listening position.
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Further technical specifications of the speaker systems can be found in the Audiovisual equipment
specification section of this standard.
1.4.3 Audio mixing
All audio mixing will be performed by the specified range of Digital Signal Processors (DSP) as outlined in
the Audiovisual equipment specification section of this standard depending on room type as outlined in
the Specific room type section of this standard.
The following guidelines outline the functionality, compatibility and capability that the DSP will need to
comply with:
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Must be programmable.
Must provide network control capability.
Must be able to communicate to the AV control system via an RS-232 or IP interface.
Must provide the specified amount of inputs and outputs for that room specification.
Must be able to perform audio dynamic processing, routing and mixing, a range of equalisation
tasks, filtering and delay controls.
All outputs need to be able to be independently controlled and have the above processing applied
to them independent of all other outputs.
Learning and teaching spaces that incorporate videoconference capability, will require the DSP to
perform echo cancellation.
Further technical specifications of the DSP can be found in the Audiovisual equipment specification
section of this standard
1.4.4 Power amplifiers
High quality power amplifiers that match the power requirements of the speaker system are to be
implemented in all learning and teaching spaces.
The following guidelines outline the requirements for power amplifiers:
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10dB headroom to handle peaks over unity gain to accommodate target audio replay requirements
as stipulated by the Speaker system selection and placement provision in this Standard.
Power amplifiers will carry a D class energy efficiency rating.
The number of amplification channels is dependent on the number of speakers to be implemented
in the venue.
Further technical specifications of the power amplifier can be found in the Audiovisual equipment
specification section of this standard.
1.4.5 Equipment installation
All supported UTAS learning and teaching spaces audio systems will be installed in accordance with
InfoComm AV Installation Handbook ‘The Best Practices for Quality Audiovisual Systems’ and in
particular sections 2.9 and 2.10 of this reference, and in accordance with any other relevant Australian
Standards.
1.4.6 Hearing augmentation and induction loops
Section 3 (Situations Requiring Hearing Augmentation) of AS1428.5 (Communication for people who are
deaf or hearing impaired) states that a meeting space of 100m2 or larger that includes a voice
reinforcement system, must have a minimum of 80% of its floor space covered by an assistive listening
system. The requirements for an induction loop are contained in AS60118-4.
The following guidelines stipulate the hearing augmentation and induction loop requirements:
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Induction loops must be installed in all rooms that have voice reinforcement systems.
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The induction loop amplifiers must be able to monitor induction loops for faults and report back to
the control system for fault flagging.
Induction loops must be designed on a room-by-room basis with initial noise analysis being
completed prior to design and the systems commissioned to appropriate legislative standard.
1.4.7 Grounding
Audio systems are susceptible to interference caused by a range of issues that are a direct result of nongrounded equipment.
The following guidelines outline the requirements for the grounding of equipment to mitigate nongrounded related audio interference:
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It is recommended that all audio equipment is connected to a single power supply with all
equipment on a single phase with a star earthing arrangement.
A technical earth is also appropriate in complex systems and is to be considered in the design phase.
The equipment rack is to be grounded to provide a chassis earth for equipment.
All equipment is to be of the balanced type for common mode rejection and reduction of
interference from Radio Frequency (RF) and Electro Magnetic Interference (EMI) sources.
Unbalanced equipment is to be used for short wiring runs.
Balancing transformers are to be used to balance the signal on longer runs.
This provision is to be implemented on all applicable AV equipment.
1.4.8 Integration into EWIS
All audio systems will need to be integrated into the EWIS. Advice should be sought from appropriate
stakeholder and/or organisational unit to recommend the appropriate actions the audio system will
require taking in such events.
The following is a guideline for emergency-initiated actions that an audio system should take:
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Mute all sound.
Enable playback of alarms and/or announcements.
The appropriate fire/electrical engineer responsible for the administration of the EWIS must be
consulted and their recommendations must be followed.
1.5 Lecture recording systems
Lecture recording services via MyMedia Service are installed in a number of learning and teaching
spaces throughout UTAS. It is possible that additional venues will have this capability in the future.
Therefore, all learning and teaching spaces that incorporate voice reinforcement should be designed
with the intention of these recording services being implemented.
1.5.1 Audio recording
All recordings from venues via MyMedia Service consist of an audio component. Audio is normally
received from the venue through a number of feeds from various devices.
The following guidelines outline the requirements for audio system capabilities in order to be able to
provide appropriate services to MyMedia Service:
•
Professional line-level audio input with bare wire termination for direct wiring of stereo balanced
(non-powered) or unbalanced audio
(+4dBu/1.228Vrms/1.737Vpk signal)
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1.5.2 Screen capture
The majority of recording from venues via MyMedia Service contain screen capture (a visual feed +
audio feed), that is typically captured from the data projector. This normally includes house computer
screen, local (laptop) computer screen, document camera, and/or other similar content players.
The following guidelines outline the current requirements for the video system capabilities to be able to
integrate with MyMedia Service:
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VGA feed in supported capture resolutions only
o 800x600 60Hz, 70Hz, 72Hz, 75Hz, 85Hz
o 1024x768 60Hz, 70Hz, 72Hz, 75Hz, 85Hz
o 1280x700 60Hz, 70Hz, 72Hz, 75Hz, 85Hz
o 1280x720 60Hz, 70Hz, 72Hz, 75Hz, 85Hz
o 1280x768 60Hz, 70Hz, 72Hz, 75Hz, 85Hz
o 1280x800 60Hz, 70Hz, 72Hz, 75Hz, 85Hz
o 1280x1024 60Hz, 70Hz, 72Hz, 75Hz, 85Hz
o 1366x800 60Hz, 70Hz, 72Hz, 75Hz, 85Hz
o 1440x900 60Hz, 70Hz, 72Hz, 75Hz, 85Hz
o 1680x1050 60Hz
o 1920x1080 60Hz
o 1920x1200 60Hz.
The following guidelines outline the preferred requirements for the video system capabilities to be able
to integrate with MyMedia Service:
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Capture input resolutions from 640x480 to 1920x1200 (Scaled to the H.264 standard of 1088
maximum number of lines)
All input aspect ratios supported
Digital or analogue input via DVI-I connector, passively adaptable to VGA or HDMI input.
1.5.3 Camera provision
MyMedia Service can also record a video feed (lecturer or other video content).
The following guidelines outline the current minimal requirements for the camera capture capabilities
for MyMedia Service:
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Analogue (composite) video input
NTSC or PAL.
The following guidelines outline the preferred requirements for the camera capture capabilities for
MyMedia Service:
•
•
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Digital (HDMI) or Analogue (composite) video input
NTSC or PAL
Full Screen (4:3) standard definition input resolutions from QCIF to D1
Widescreen (16:9) high definition input resolution from 480p to 1080p.
1.5.4 Dual screen recording
MyMedia Service can provide dual visual feed recording functionality. Currently it only facilitates a
screen + video feed. From 2012 onwards dual screen recording will be possible. The use of dual visual
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feed recordings is currently low, but requirements for this functionality (and AV equipment to support
it) may increase in the future and hence be provided for.
1.6 Whiteboards and writing surfaces
Though annotation capabilities via the AV control system is said to supersede whiteboards, it will still be
a requirement to have writing surfaces and, as such, these should be viewed as complementary to
annotation technology.
1.6.1 Standard specifications and board height
The following guidelines outline the general specification of whiteboards and the optimal placement
height above the floor:
•
•
All writing surfaces are to be whiteboards with surfaces of enamel on steel.
The bottom edge of the rear board will be no higher than 0.9 metres and no lower than 0.85 metres.
1.6.2 Multiple sliding boards
There may be a requirement in some venues to have multiple sliding boards to allow for projection
space when not in use. The following guidelines specify how multiple sliding boards are to be installed:
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The bottom edge of the rear board will be no higher than 0.9 metres and no lower than 0.85 metres.
Multiple sliding boards will consist of no more than three boards.
1.6.3 Board lighting
Board lighting is to be designed so that boards are able to be viewed and are legible from all viewing
angles. The following guidelines set out the requirement for board lighting:
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Board lighting to be zoned separately.
No or little spill from this lighting shall impact on the projector screen and adversely affect the
ambient lighting provision.
Be able to provide 300Lux vertically without causing glare for the viewer.
Please refer to the Lighting control and lighting zoning provision of this standard for further information
about board lighting.
1.7 Centralisation and structured cabling systems
All future design of new and redesign of existing learning and teaching spaces will adopt the
centralisation approach for AV equipment and infrastructure. This relates to the removal of non-user
interactive AV equipment from within the venue (usually under the lectern) to a Floor Communication
Room (FCR) and the implementation of structured cabling systems.
It is designed to utilise Unshielded Twisted Pair Technology (UTP) structured cabling and to
communicate to AV equipment and devices via Internet Protocol (IP) or similar AV protocols.
This will provide the following benefits to the AV infrastructure and function:
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Greater flexibility through the use of structured cabling systems and the ability for future expansion
without the restraint of space.
Greater security for AV equipment.
Improved ability to integrate with other systems, audiovisual and non-audiovisual.
Increase reliability of equipment e.g. cooling, dust reduction and power supply issues, including
Uninterrupted Power Supply (UPS) in case of power outage.
Ease of management for maintenance, upgrade servicing and auditing.
Future proofing as in-field equipment takes on more of a plug and play approach towards
interaction with AV equipment over the structured cabling system.
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•
Meets sustainability requirements as less energy will be used where single devices can service
multiple venues.
This section is intended as a guide for the future of AV infrastructure at UTAS. The ideas discussed in this
section cannot necessarily be matched with technology and/or current funding, however, the concept is
to have in place the cabling so when the technology is available, costs are acceptable and funding
available, the infrastructure is in place.
1.7.1 Audiovisual centralisation approach
To accommodate a centralised approach, as many AV components as possible are to be locate within
the FCR. The approach is to locate all non-user-interactive equipment within the FCR. This non-userinteractive equipment, to be located in the FCR, is detailed in the following guidelines:
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Control processors
Switchers
Codecs
DSP
Lecture recording systems
Audio mixers
Amplifiers, if less than 30 metres to speakers.
Standard AV equipment that requires direct user interaction such as projectors, display screens, content
players and the house computer will be mounted according to normal conditions in each room. If an
amplifier is more than 30 metres away from the speakers then the location of the amplifier will be either
in the ceiling space on a custom bracket with a clearly marked access panel or, where there is a local AV
rack present, mounted in that.
1.7.2 Centralisation exceptions
Exceptions should only be authorised where one of the following conditions are present:
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Only intended as a temporary setup
In a small building without a dedicated communications room
In a single stand-alone AV space without IT infrastructure
In a single small AV space within a building with little likelihood of any form of expansion unless via a
full internal refurbishment project.
All steps need to be taken to accommodate the need for AV centralisation but in some cases these
exceptions can be made.
1.7.3 Signal delivery and cabling
Signal delivery for centralised AV will run over structured communications cabling with the preferred
method being UTP, incorporating the use of existing IP networks present in most venues. Structured
cabling design needs to take into account any AV cabling requirements additional to traditional network
communications including:
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Patch panels within AV racks linking them to patch frames.
Wall mounted outlets for field devices such as wall plates, displays and small racks with interactive
devices or amplifiers.
Floor box outlets used by laptops, microphones and amplifiers.
Ceiling or in-ceiling mounted outlets for devices such as speakers, amplifiers, projectors and
microphones.
Cabling must meet stringent manufacturer standards to eliminate interference from external
sources.
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All outlets should be installed and terminated in accordance with the relevant structured cabling
standards and are not required to be differentiated for AV use during installation as every outlet should
be able to handle both AV and IP signals.
1.7.4 UTP converters
The type of UTP converters chosen need to be matched between the transmitter and receiver ends for
an optimised solution. The following guidelines are to be followed when considering UTP converters
types:
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The ability to convey the signal over the distance to the centralised AV equipment and back to the
venue without data or performance loss.
Demonstrate a long life cycle and be compatible with emerging and future technology.
Designed to be able to convert and carry audio, visual and control data from all sources.
Demonstrate the ability to integrate with existing network infrastructure.
Ability to carry high definition visual signals over the required distance to and from the FCR and local
room without a discernable loss in data and/or performance.
Incorporate auto skew elimination for visual data paths.
The implementation of UTP structured cabling and the use of FCR requires the rack-mounted equipment
(matrix switches/switches) to be UTP based. This will eliminate the requirement for the signals travelling
back from the local room to be converted, processed and then re-converted back to the UTP protocol
and sent back to the local room.
1.7.5 Power management, climate control and risk mitigation
Due to the nature of AV centralisation it is possible to apply power management to all devices in-house.
With the use of UPS, in the case of power outages, the venues that have centralised AV equipment can
still deliver a service.
This provides the added benefit in emergencies allowing the AV equipment that is incorporated into the
EWIS to display appropriate advice to those venues.
The follow considerations need to be taken into account when designing centralised AV installations to
mitigate risk and incorporate power management:
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All AV equipment, in local room and in FCR, must be connected to a UPS and be able to deliver
service in case of outage.
Contractors who are responsible for the installation of the network infrastructure need to conform
to the AV equipment and especially the UTP converter standards to deliver the appropriate level of
service.
AV equipment in the FCR needs to have a dedicated power circuit and not share this with any other
non-AV devices.
FCRs require cooling to mitigate the risk of overheating. As most IT node rooms meet this
requirement, this should be taken into consideration if the introduction of AV equipment into these
spaces exceeds the allowable operating temperatures.
There is an inherent risk of the poor delivery of AV services to venues if manufacturer’s standards are
not met when implementing centralised AV equipment.
1.8 Specific room types
Learning and teaching spaces come in different sizes and shapes and serve different uses. The following
section deals with the specific room types and the AV requirement for these spaces.
The definitions of the room types conform to terminology used throughout UTAS, in particular
timetabling, to reduce confusion over the specific room type and use.
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In practical terms there are four room types: They are
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Lecture Theatres (Tiered teaching spaces)
Classrooms (Flat room spaces)
Meeting rooms (Videoconference rooms) and
Flexible teaching spaces.
These room types will be referenced against the UTAS terminology for teaching spaces.
The following provisions are designed to identify the AV equipment for these spaces separately.
1.8.1 Lecture theatres (tiered teaching spaces) scope
The AV system in lecture theatres must provide the following levels of functionality.
Lectern and control:
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Fixed lectern as per UTAS standard
Occupancy sensors
Interactive AV control interface integrated with lighting, audio and visual devices
Lectern light with separate control from AV control system
Service Desk direct dialling phone
Remote AV system monitoring.
Lighting
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Full control via the AV control system by user
Separate control of lighting zones
Automated control of lighting system to reflect differing projection states.
IT and computing
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Lectern-mounted computer with adjustable monitor and network connections
Separate monitor for display of other sourced content (Document Camera, DVD, Videoconference)
2 x USB (minimum) ports for user interaction
Laptop connection point, on lectern, incorporating power, video (VGA), audio (RCA) and Ethernet
port
Wireless network coverage.
Projection and display
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Dual fixed projectors displaying minimum 10:1
Projectors are to be WUXGA
Appropriate measures to secure projector
Preview monitor screen (as stipulated in the IT and computing section of this provision)
Video signal processing and switching
Whiteboards.
Content players and imaging devices
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Multi format and multi zone content players for replay of video, DVD and audio sources
Document camera
AUX inputs for portable video equipment.
Audio
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Voice reinforcement and program replay systems
EWIS muting interface
Lectern mounted gooseneck microphone
Lapel microphone
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Handheld microphone
Hearing Augmentation and Induction Loop
Appropriate sound proofing measures.
Recording
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Lecture recording as per Lecture recording systems specification of this standard
Image capture from all projected sources
Desired (future) camera capture of lecturer.
Videoconferencing
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If required, should conform and meet the requirements of the Videoconference section and
provisions of this standard.
1.8.2 Class rooms (flat floor spaces) scope
Lectern and control
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Either fixed or moveable lectern with suitable cable management
Occupancy sensors
Interactive AV Control interface integrated with lighting, audio and visual devices
Lectern light with separate control from AV control system
Service Desk direct dialling phone
Remote AV system monitoring.
Lighting
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Full control via the AV control system by user
Separate control of lighting zones
Automated control of lighting system to reflect differing projection states.
IT and computing
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Lectern mounted PC with adjustable monitor and network connections
Separate monitor for display of other sourced content (Document Camera, DVD, Videoconference)
2 x USB (minimum) ports for user interaction
Laptop connection point, on lectern, incorporating power, video (VGA), audio (RCA) and Ethernet
port
Wireless network coverage.
Projection and display
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Dual fixed projectors displaying at least 16:9 aspect
Projectors are to be HD (WXGA)
Appropriate security measure to secure projector
Preview monitor screen (as stipulated in the IT and Computing section of this provision)
Video signal processing and switching
Whiteboards (wall mounted or mobile).
Content players and imaging devices
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Multi format and multi zone content players for replay of video, DVD and audio sources
Document camera
Audio
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Voice reinforcement and program replay systems
EWIS muting interface
Lectern mounted gooseneck microphone
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Lapel microphone
Hearing Augmentation and Induction Loop
Appropriate sound proofing measures.
Recording
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Lecture recording as per lecture recording specification of this standard
Image capture from all projected sources
Desired (future) camera capture of lecturer.
Videoconferencing
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If required, should conform and meet the requirements of the Videoconference section and
provisions of this standard.
1.8.3 Meeting rooms (videoconference rooms if required) scope
Please refer to the Videoconference provision of this standard.
1.8.4 Flexible teaching spaces scope
Lectern and control
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Either fixed or moveable lectern with suitable cable management
Entry and Exit switches and/or occupancy sensors
Interactive AV control interface integrated with lighting, audio and visual devices
Lectern light with separate control from AV control system
Alternative AV control points throughout the space to allow flexibility within the space
Ability to zone areas for audio and visual presentations throughout the venue
Service Desk direct dialling phone
Remote AV system monitoring.
Lighting
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Full control via the AV control system by user
Separate control of lighting zones
Automated control of lighting system to reflect differing projection states
The ability to accommodate zoned teaching areas within these spaces.
IT and computing
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Lectern mounted computer with adjustable monitor and network connections
2 x USB (minimum) ports for user interaction
Laptop connection point, on lectern, incorporating power, video (VGA), audio (RCA) and Ethernet
port
Wireless network coverage
Incorporation of ‘pod’ computer units throughout the space that are mobile and are able to be
connected into the AV system via wall mounted connection points.
Projection and display
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Fixed projectors displaying at least 16:9 aspect ratio and with at least a minimum of 1080p
resolution
Number of projectors and location throughout the space are defined by the design of the space
Ability to project from different zones, sources and content
Appropriate security measure to secure projectors
Projector to automatically switch between 4:3 to 16:9 as required
Video signal processing and switching
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•
Whiteboards (wall mounted or mobile).
Content players and imaging devices
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Multi format and multi zone content players for replay of video, DVD and audio sources
Document camera(s)
AUX inputs for portable video equipment.
Audio
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Voice reinforcement and program replay systems
EWIS muting interface
Ability to zone audio in different teaching areas of this space
Lectern mounted gooseneck microphone
Lapel microphone
Handheld microphone
Hearing Augmentation and Induction Loop (if required)
Appropriate sound proofing measures.
Recording
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Lecture recording as per lecture recording specification of this standard
Image capture from all projected sources
Desired (future) camera capture of lecturer.
Videoconferencing
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If required, should conform and meet the requirements of the Videoconference section and
provisions of this standard.
1.9 Audiovisual equipment specifications
The following outlines a standardised list of equipment and specifications for AV equipment in learning
and teaching spaces. Due to the rapid change of technology this list should be considered as minimum
requirements when deciding on equipment. This section is open to amendments and may change in
accordance with the normal review process.
1.9.1 Projection screens
The following guidelines outline the minimum requirements for projection screens:
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Screen to be matt white fibreglass surface, with 50mm black boarder. All screens to be in 16:10
format unless noted.
Where the geometry of the room will accommodate, fixed frame screens are the preference.
Tutorial rooms may require chain drive screens and motorised screens are required where the
screen is over 100” size or cannot be accessed by the user.
Motorised screens are to be top roller type up to 200”, for over 200” a bottom roller is also
required.
Special application screens may be required for special purpose spaces that will include high gain or rear
projections surfaces. In these cases it is up to the discretion of the project manager to provide advice on
the implementation of these projection surfaces.
1.9.2 Data projectors – General minimum specification
The following guidelines are minimum requirements for any data projector deployed in any learning and
teaching space.
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Suitable for permanent installation and continuous use
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Minimum Native resolution of WXGA
Minimum Light output equal to 5000 lumens
Contrast ratio of at least 550:1
Lamp life typically 2000 hours or better
Vertical and horizontal lens shift
RS-232 control
Lamp and filter change/cleaning for a ceiling mounted unit must be possible without dismounting or
altering the pan and tilt.
With emerging technology and the move towards structured cabling systems, it is desired, but not
mandatory that the data projector has an inbuilt UTP converter.
Due to existing learning and teaching space geometry, it is not always possible to work within the
boundaries of this provision. There may be a need to employ different solutions that will still deliver the
desired level of service from the data projector. Special provisions can be made to meet these
requirements.
The following provisions detail the requirements and specifications for data projectors in particular
venues.
1.9.3 Data projectors – Large venues (Auditoriums)
The projector for large venues must meet the following minimum requirements:
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Minimum of 6500 ANSI lumen
Full high definition chip set WUXGA (1920 x 1200)
Full range of lenses
Multiple lamps for redundancy
Minimum contrast ratio of 2000:1
Minimum lens shift of +/- 40% vertical , +/- 10% horizontal
Minimum Inputs ; RGBHV/YPbPr ( 5 x BNC) , VGA (HD15), DVI-D, S-Video and composite video
RS232 controllable.
The specifications are designed as a minimum; in very large spaces the requirements will be greater.
1.9.4 Data projectors – Lecture theatres
The projector for lecture theatres must meet the following minimum requirements:
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Minimum of 6000 ANSI lumen
Full high definition chip set WUXGA (1920 x 1200)
Full range of lenses
Multiple lamps for redundancy
Minimum contrast ratio of 2000:1
Minimum lens shift of +/- 40% vertical , +/- 10% horizontal
Minimum Inputs ; RGBHV/YPbPr (5 x BNC) , VGA (HD15), DVI-D, S-Video and composite video
RS-232 controllable
1.9.5 Data projectors - Classrooms
The projector or proposed solution must meet the following specification:
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Minimum of 3500 ANSI lumen
WXGA definition chip set or equivalent
Large zoom range to accommodate a range of throw distances
Minimum contrast ratio of 400:1
Minimum lens shift of +/- 40% vertical , +/- 10% horizontal
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Minimum Inputs; RGBHV/YPbPr , VGA , DVI-D, S-Video and composite video
Long lamp life preferred <5000hrs
RS-232 controllable.
1.9.6 Flat panel displays
Flat panel displays are only to be deployed as per the Specific room type provision of this standard. This
is mainly concerned with meeting rooms and videoconference rooms. Where there is a requirement for
flat panel displays outside of these specific room types, an exception to that provision can be considered
on a case-by-case basis.
Guidelines for the specifications of flat panel displays:
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Screen size to comply with sightlines and viewing distance rules, as stipulated in the Room design
for learning and teaching spaces section of this standard.
Minimum resolution of 1080p
Minimum aspect ratio of 16:9
Flat panels are to be commercial grade panels suitable for installation and continuous use
Preference is for LCD type Flat panels monitors
Plasma screens are to be used only where there are no static images to be displayed
Flat panel displays are able to be wall mounted
RS-232 controllable.
1.9.7 Projector and flat panel mounts
Guidelines for specifications of projector and flat panel mounting systems:
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Projector mounts to be standardised on a quality range and to be adequate for the weight and
application.
Brackets for projectors and flat panel screens are to be standardised as much as practicable.
The locks are to be standardised for common keying.
Flat panel brackets range to be standardised on a quality range and to be adequate for the weight
and application.
1.9.8 Central controller
The controller will perform the controlling functions for the following devices:
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Projector 1 (or display)
Projector 2 (or display)
Video and audio router
DSP unit(s)
Lighting presets
DVD player
Image windowing layout if separate unit
Videoconference codec if applicable
Lecture capture device
Projection screens
Curtains if applicable
Guidelines for minimum specification requirements for central controllers:
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Configurable RS-232 / RS-422 / RS-485 Serial ports
Relays
IR/Serial ports
Digital I/O ports
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Network Connectivity
There are no values given to the specified number of I/O ports for the controller. These are minimum
requirements and the required available I/O ports will be dictated by the system design and the
standard equipment list.
1.9.9 AV Control system interface (Touchpanel)
AV control system user interface must meet the following minimum requirements:
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Integrate with the central controller for full control of system devices
The standard AV Control System User interface is standardised for specific room types and can be found
in the Standard Equipment List supplementary to this standard.
1.9.10 Audio and video router
Guidelines for minimum specifications of the video and audio router:
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8 x 6 matrix switcher for VGA
2 x 2 matrix switcher for composite video and S-video
14 x 6 matrix switcher for stereo audio
Composite video and S-video transcoding scalar
Audio input gain and attenuation
Audio output volume adjustment and muting
Remote monitoring and control
RS-232 control ports.
1.9.11 Scalar
Guidelines for minimum specifications of the scalar:
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Inputs: Composite video on BNC, S-video on 4-pin mini DIN
Outputs: Scaled RGB output on 15-pin HD
Scales composite video and S-video sources
RGB output rates from 640x480 to 1366x768
Auto switching between inputs
Frame rate conversion
Picture controls for brightness, contrast, colour, tint, detail, horizontal and vertical positioning and
sizing
3:2 NTSC and 2:2 PAL pull down detection
RS-232 serial control.
1.9.12 Audio signal processing
Guidelines for minimum functionality and specifications of the Audio signal processor:
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10 balanced mic/line inputs
6 balanced mic/line outputs
Ethernet port for software configuration/control
RS-232 serial for remote control
Mix, route, combine, EQ, delay, control
Ability to select, view and calibrate
Dynamics: leveller, comp/limiter, ducker, ANC
Routers: 2x1 ~ 32x32
Delays: 0 ~ 2000 ms
Line level <0.006%
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Mic level <0.05%
Maximum Gain (mic input to line output): 66dB
Line level input <-80dB
Mic level input <-75dB
Sampling Rate: 48kHz
A/D - D/A Converters: 24-bit
Phantom Power.
1.9.13 Speaker systems
Please refer to the Speaker system selection and placement provision of this standard.
1.9.14 Amplifiers
Please refer to the Power amplifiers provision of this standard.
1.9.15 Lectern microphones
Guidelines for specifications of lectern:
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Gooseneck microphone with selection of interchangeable capsules
XLR connector 5-pin
Cardioid pick up pattern
Frequency response within 20-20,000Hz
S/N ratio (A weighted).
1.9.16 Radio microphones
Requirements for radio microphones - handheld and lapel microphones only:
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System package with different transmitter options
Belt pack system for receiver
Frequency agile with frequency range
Rugged construction
Automatic frequency setup
Wideband FM transmission
Audio outputs to be balanced
Automatic squelch adjustment
Frequency lockable
Battery level indicator
Minimum 8 hour battery life.
1.9.17 Document cameras
Minimum requirements for document cameras:
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Minimum resolution of 1024 x768
Minimum frame rate of 20fps
6 x zoom (optical)
Top light
Flexible gooseneck mounting
Auto white balance and focus ability
Analogue VGA output format
RS-232 controllable.
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1.9.18 DVD/Blu-Ray players
Minimum requirements for DVD/Blu-Ray Players:
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IR Controllable
Consumer grade device
Multi region
Playback capability: CD, CD-R/RW, VCD, DVD, DVD+/-RW, MP3, WMA and JPEG.
1.9.19 Desktop Computer
Minimum requirements for Desktop Computers:
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Minimum Output Resolution: 1024 x 768
Preferred output resolution: 1920 x 1200
Dedicated minimum graphics: 512 MB
Dual DVI output
4 GB RAM
Integrated sound
1.9.20 Cabling and management
All cabling types are to be chosen for purpose and conform to best practice. Installation of all cabling
including factors such as bend radius and cable management must conform to manufacturer
specification.
Coaxial:
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75 ohm cabling including RGBHV, YUV, S-Video and Composite
Crimp or compression connectors and tools are to be the items specified by the cable manufacturer
only.
Strain relief boots are to be used on all terminations.
Coaxial cabling type to be used for recommended distances (dependent on bandwidth) only.
Audio line level cabling:
•
•
•
Installation type cabling to be single pair, 100% shield (foil type) cable with drain wire
Audio flexible cable is to be star quad flexible braided cable.
Speaker cable is to be double insulated multi strand style.
1.9.21 Cable labelling
All cable ends must be clearly labelled, with a self-laminating label between 50-100mm back from
connector or termination. The label shall duplicate the equipment connection details and show source,
destination and cable ID number.
1.9.22 Connector types
Video/RGBHV:
•
•
Pre-moulded HD-15 to BNC-F adapters should be used where RGBHV cable connects to VGA HD-15
connectors on equipment.
Field soldered VGA terminations are not to be used.
Audio:
•
Commercial grade connectors to be used throughout for balanced (XLR, TRS) and unbalanced (RCA,
TS) connections.
Phoenix:
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
•
Phoenix connectors with extended flat cable clamp areas are to be used. Bare wire terminations are
not to be solder tinned.
Serial/Data/D-Connectors:
•
•
•
D connectors should have plastic, clip-together back shells with integral cable clamp and
thumbscrews.
RJ-45 connectors should match the cable type (solid/stranded) and shall have boots.
Pre-moulded Cat5 cables are to be used for short runs.
1.9.23 Equipment rack
An IEC 19” 14 RU equipment rack is required in each appropriate area to house the main audiovisual
equipment. Minimum requirements:
•
•
•
•
•
600mm deep unit.
Open frame style.
Cable management, rack trays and rack power are to be provided.
All rack screws are to be black and cage nuts are to be 8mm.
Black washers are to be used for all equipment.
1.10 Service Desk phone in learning and teaching spaces
A phone will be made available for all learning and teaching spaces. The following provisions deal with
the requirements and criteria for the implementation of Service Desk phones in these spaces. There are
two types of installation as discussed below.
1.10.1 In-house phone
An in-house phone is to be installed where an in-house computer is present in the learning and teaching
space. The following guidelines are to be met when installing the phone:
•
•
To be installed on the lectern or as close as practical to the AV or IT equipment in the venue.
Locked down to call only University internal numbers.
1.10.2 Outside of venue (at door) phone
An outside of venue phone is to be installed where there is a centrally controlled (Security) locking
system on the venue door. The following guidelines and criteria are to be met when installing these
types of phones:
•
•
To be installed next to the door or as close as practical.
Locked down to call only University internal numbers.
1.11 Documentation
As part of any works undertaken in supported learning and teaching spaces, full and complete drawings
must be submitted and recorded for the purpose of these works.
1.11.1 Construction drawings
Contractors are to prepare and submit shop drawings before commencing manufacture or installation.
These are to be prepared using AS1102 Drafting Standard symbols with a legend. Drawings to include:
•
•
•
•
•
Audio schematic
Video schematic
Control schematic
Room layout - detailing cable runs, conduits and equipment location
Room elevation
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
•
•
Rack layout
All custom-built structures, penetrations.
1.11.2 Post contract documentation
Contractors are to supply the documentation outlined below.
As-Built drawings (Supplied in soft and hard copy) to include:
•
•
•
•
•
•
•
•
Audio schematic
Video schematic
Control schematic
Room layout - detailing cable runs, conduits and equipment location
Room elevation
Rack layout
All custom built structures, penetrations
Schematics to include device model and description, cable numbers, cable types and device
input/output connection.
AV Control System coding:
•
•
Touch panel files
All relevant files.
Inventory details are to include:
•
•
•
•
Make and Model and equipment function
Serial number
University bar code number
Warranty expiry date.
Installation manuals to include:
•
•
•
•
•
•
•
Contact details of responsible parties
Service contact details
As-built drawings
Description of installation including system descriptions
Operating instructions
Maintenance procedures
All equipment operating manuals are to be provided online.
1.12 Testing, commissioning and handover
Commissioning is to be arranged to verify the operation of all equipment items and each system.
Commissioning will be attended by the University’s representative and signed off. All equipment is to be
tested and a written test report is to be submitted for each system. Format for each test required is to
be approved by the University prior to testing.
Glossary and Definitions
A/D - D/A
Analogue to Digital – Digital to Analogue
ANSI
American National Standards Institute
BMS
Building Management System
Codec
Video/Audio Coder/Decoder
DSP
Digital Sound Processor
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
DVD
Digital Video Disc
EWIS
Emergency Warning and Information System
FCR
Floor Communication Room
FM
Frequency Modulation
FOH
Front of House
H.264 standard
A standard for video compression
IEC
International Electro technical Commission, an international standards
organization dealing with electrical, electronic and related technologies
IP
Internet Protocol
IR
Infra Red
IT
Information Technology
LCD
Liquid Crystal Display
Lux
Unit of luminance measuring luminous power per area
MyMedia Service
UTAS Lecture Recording System
NTSC
Colour encoding system (National Television System Committee)
Ohm
Unit of electrical resistance
PAL
Colour encoding system (Phase Alternating Line)
QCIF
Quarter Common Intermediate Format
RCA
Audio Connector (Radio Corporation of America)
RS-232
Recommended Standard 232 (Serial Port)
RT60
Time required for reflections of a direct sound to decay by 60db below the
level of the direct sound
S/N Ratio
Signal to noise ratio
Standing Wave
A sound wave that remains in a constant position
STI
Speech Transmission Index
Unity Gain
Where both input and output are at the same voltage level and impedance
UPS
Uninterrupted Power Supply
UTP
Unshielded Twisted Pair
VGA
Video Graphics Array
WUXGA
Widescreen Ultra Extended Graphics Array
WXGA
Widescreen Extended Graphics Array
XGA
Extended Graphics Array
XLR
Type of audio connector
References
InfoComm AV Installation Handbook ‘The Best Practices for Quality Audiovisual Systems’
ANSI/INFOCOMM 1M-2009 Standard
AS 60118.4-2007 Hearing Aids – Magnetic Field strength in audio-frequency induction loops for hearing
aid purposes.
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
AS/NZS 1680 for Lighting (as amended) and the government and building codes
AS/NZS 2107:2000 Acoustics – Recommended design sound levels and reverberation times for building
interiors
AS/NZS 60065:2003 & Amendment No. 1 (January 2008) Audio, video and similar electronic apparatus—
Safety requirements.
AS/NZS ISO 717.1:2004 Acoustics - Rating of sound insulation in buildings and of building elementsAirborne sound insulation.
AS1102 Drafting Standard
Australian Standard AS 2107-2000
Building Code of Australia
Disability (Access to Premises – Buildings) Standards 2010.
About this Document
Title
Version
Version date
Status
Revision information
Authors
Editors
Editors
UTAS Audiovisual Design Standards
1.0
July, 2011
Approved
3 years from approval
Frank Andrews
Melanie Pittard
Marina Lobastov
Revision History
Draft
Release date
1
July 2011
2
August 2011
3
February 2012
Comments
Draft for proof
Draft for review
Draft for consideration by endorsing committee
Guideline Approval
Status of version
Responsible Officer
Name
Date
Approved
Chief Information Officer
John Parry
Februaury 2012
Appendix 1 – UTAS AV Design Standards Metric Table
ROOM XXX, XXX BUILDING (XX.XXXXArchibus) - University of Tasmania,
XXXCAMPUSXXX
LOCATION
Organisation Site
Room Name
Address
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
Google Map
Room phone number
Room capacity
Room Usage
Room type
AV Design Standards Provision
1.1.0 ROOM DESIGN FOR TEACHING AND LEARNING SPACES
1.1.1 Sight Lines and Screen Viewing Distances
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.1.1 The maximum viewing distance can be determined by the
height of the screen which will in turn determine the furthest
allowable viewing position at a factor of 5.3
1.1.1 The minimum viewing distance is determined by the closest
viewer position. This position shall not be any closer than twice the
screen height at that position.
1.1.1 The maximum allowable horizontal viewing angle will be no
more than 45 degrees to the centre sight line of the screen.
1.1.1 The maximum allowable vertical viewing angle will be no
more than 15 degrees to the centre of the display measured from
the front centre viewing position
1.1.1 The bottom edge of the screen shall be no less than 1.3
metres above the floor.
1.1.1 The minimum ceiling height will be determined by the
maximum viewing distance rule and the screen height above the
floor
1.1.2 Vertical and Horizontal Projector Placement
User Requirement Statement
1.1.2 The vertical position of the projector shall not obstruct the
view of the screen for any viewer in that space
1.1.2 The vertical and horizontal placement should adhere to the
projector’s manufacturer recommended vertical position
1.1.2 Use of key stoning shall be kept to a minimum
1.1.2 The placement of the projector shall provide ease of access
to be able to perform maintenance and repairs
1.1.2 Consideration to reduce projection glare in lecturer’s eyes.
1.1.2 UTAS approved security mount must be used.
1.1.3 Minimum Projector Brightness
User Requirement Statement
1.1.3 The targeted projected Lux for small to medium sized
venues, where screen sizes are no more than 3.5 metres
diagonally, must be no less than 500Lux, preferably 600+ Lux.
1.1.3 The target projected Lux for larger venues, where screen
sizes are more than 3.5 metres diagonally, must be no less than
315Lux, preferably 500+ Lux
1.1.4 Minimum Projector Contrast Ratio
User Requirement Statement
1.1.4 Text and numerals when displayed on the projector screen
will need to meet an aspect ratio of 5:1
1.1.4 Photos, pictures and any graphical representation when
displayed on the projector screen will need to meet an aspect ratio
of 10:1
1.1.4 Videos will need to be able to display on the projector screen
at a ratio of 25:1
1.1.5 Projector, Display and Screen Aspect Ratio
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.1.5 The standard aspect ratio for displays in UTAS supported
teaching and learning spaces will be a minimum of 16:9
1.1.6 Dual Displays
User Requirement Statement
Not all venues are capable or are mandated to meet these
requirements and may need only one single projection, single
image configuration. A variation to this provision can be sought
1.1.6 Dual projection with dual displays is a requirement for lecture
theatres.
1.1.7 Flat Panel Technology
User Requirement Statement
The acoustical performance of teaching and learning spaces
shall be measured using the Speech Transmission Index
(STI)
1.1.7 Placement is in accordance with all rules that govern the
placement and implementation for projector screens
1.2.0 ACOUSTICAL DESIGN IN TEACHING AND LEARNING
SPACES
1.2.1 Acoustic Performance
User Requirement Statement
The acoustical performance of teaching and learning spaces shall be
measured using the Speech Transmission Index (STI)
1.2.1 No teaching and learning space will score less than ‘good’
with a STI less than 0.6
1.2.1 The desired score for acoustical performance for any venue
is ’excellent’ with a STI of 1.0
1.2.1 The signal to noise ratio is to be kept to a minimum with a
benchmark 25dB(A) to ensure audio intelligibility
1.2.2 Ambient Sound Levels
User Requirement Statement
1.2.2 Room type: Lecture theatre (Tiered Teaching Spaces) will
have a minimum ambient noise level of 45db(A) and a best practice
level of 35dB(A)
1.2.2 Room type: Classrooms (Flat Room Spaces) will have a
minimum ambient noise level of 35db(A) and a best practice level
of 30dB(A)
1.2.2 Room type: Meeting Rooms (Video Conference/Board Rooms)
will have a minimum ambient noise level of 40db(A) and a best
practice level of 35dB(A)
1.2.2 Room type: Flexible Teaching Spaces will have a minimum
ambient noise level of 35db(A) and a best practice level of 30dB(A)
1.2.3 Reverberation Times
User Requirement Statement
1.2.3 Room type: >50 seat classroom - Will have a maximum
reverberation time of 1.0 second and a best practice level of 0.7
seconds
1.2.3 Room type: Lecture theatre - Will have a maximum
reverberation time of 1.0 second and a best practice level of 0.7
seconds
1.2.3 Room type: Flexible Teaching Spaces - Will have a maximum
reverberation time of 0.6 seconds and a best practice level of 0.4
seconds
1.2.3 Room type: Conference and meeting rooms - Will have a
maximum reverberation time of 0.7 seconds and a best practice
level of 0.6 seconds
1.3.0 LIGHTING DESIGN IN TEACHING AND LEARNING SPACES
1.3.1 Relevant Lighting Standards
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
User Requirement Statement
Lighting is governed by the Australian and New Zealand Standards AS/NZS 1680 for Lighting (as amended) and the relevant
government and building codes
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.3.2 Lighting Control and Lighting Zones
User Requirement Statement
1.3.2 Front lights and board lights that spill directly onto the screen
and white board respectively
1.3.2 Directional lighting to illuminate the lectern position or other
front-of-house ‘task’ areas. This may incorporate the use of multiple
lighting zones to cover larger venues front of house areas and/or
‘task’ areas. These lights will not produce any spill on to the screen
and will have the ability to control the beam onto the specific area
that it is intended
1.3.2 Aisle, step and emergency lights for venues that have steps
and/or aisles and require this type of lighting. This is a legislative
requirement and will be part of the design for the sort of venue that
requires it.
1.3.2 Room lights depending on the size and purpose of the room
and may have multiple zones to configure the room with differing
levels of illumination in different areas of that room
1.3.3 Ambient Light Spill on Projector Screen
User Requirement Statement
1.3.3 The amount of ambient illumination on the screen in small
venues will be no more than 100Lux maximum
1.3.3 The amount of ambient illumination on the screen in large
venues will be no more than 60Lux maximum
1.3.4 Target Light Levels
User Requirement Statement
It is a requirement in teaching and learning spaces to have
programmable lighting modes to accompany differing stages of
room use
1.3.4 Full – Full room lights. Entry and exit mode. 320-360 Lux.
1.3.4 AV – Slightly dimmed room lights. Appropriate task areas
lights on. Front lights off. Projection and note taking mode. Min
light level 240 Lux.
1.3.4 Dimm – Fully dimmed room lights. All other lights off.
Projection mode. 60-80 Lux.
1.3.4 Off – No room lights. No other lights except aisle and step
lights. Presentation Mode.
1.3.5 Occupancy Sensing
User Requirement Statement
1.3.5 Full room lights when triggered. This desired state is
stipulated as Full in the Target Light Level provision
1.3.5 Turn off all lighting when no motion is detected after 90
minutes as per energy management requirements.
1.3.6 Lighting Control System and AV Control System
Integration
User Requirement Statement
1.3.6 The ability for the AV control system to control all lighting
and light control devices such as blinds and curtains
1.3.6 The ability for the Lighting Control System to trigger Building
Management System events such as occupancy sensing and climate
control
1.4.0 AUDIO SYSTEM DESIGN IN TEACHING AND LEARNING
SPACES
1.4.1 Audio Replay and Voice Reinforcement
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.4.1 Rooms that are classified teaching spaces are to incorporate
a Digital Signal Processor (DSP) to allow for the dedication of the
required outputs to MyMedia Service
1.4.1 Rooms classified only learning (tutorial) spaces will only
require an Audio Relay capability
1.4.1 Voice reinforcement systems are to have at least four
microphone input facilities
1.4.1 Background sounds will be at least 20 decibels lower than
foreground sounds, or approximately four times quieter than the
foreground speech
1.4.2 Speaker System Selection and Placement
User Requirement Statement
1.4.2 A targeted distribution of voice reinforcement at all listening
positions of a minimum of 65dBA
1.4.2 A targeted distribution of audio replay at all listening
positions of a minimum of 80dBA
1.4.2 A consideration of complimentary speaker systems
(distributed speakers or speaker arrays), depending on the venue’s
geometry and acoustical performance to provide compliance with
audio coverage requirements
1.4.2 A minimum of two Front of House (FOH) speakers in all
venues
1.4.2 Zoning and speaker delay systems to be considered where
issues with FOH and distributed speakers systems providing an
unintelligible amount of delay variation to the listening position
1.4.3 Audio Mixing
User Requirement Statement
The following guidelines outline the functionality, compatibility and
capability that the DSP will need to comply with:
1.4.3 Will need to be programmable
1.4.3 Will need to provide network control capability.
1.4.3 Will need to be able to communicate to the AV controls
system via a RS232 or IP interface
1.4.3 Perform audio dynamic processing, routing and mixing, a
range of equalisation tasks, filtering and delay controls
1.4.3 All outputs need to be able to be independently controlled
and have the above processing applied to them independent of all
other outputs
1.4.3 Teaching and learning spaces that incorporate video
conference capability, will require the DSP to perform echo
cancellation
1.4.4 Power Amplifiers
User Requirement Statement
1.4.4 10dB headroom to handle peaks over unity gain to
accommodate target audio replay requirements as stipulated by the
Speaker System Selection and Placement provision in this Standard
1.4.4 Power amplifiers will carry a D class energy efficiency rating
1.4.4 The number of amplification channels is dependent on the
number of speakers to be implemented in the venue
1.4.5 Equipment Installation
User Requirement Statement
All supported UTAS teaching and learning spaces audio systems will
be installed in accordance with InfoComm AV Installation Handbook
‘The Best Practices for Quality Audiovisual Systems’ and in
particular sections 2.9 and 2.10 of this reference, and in accordance
with any other relevant Australian Standards.
1.4.6 Hearing Augmentation and Induction Loops
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.4.6 Induction loops are to be installed in all rooms that have
voice reinforcement systems
1.4.6 The induction loop amplifiers are to be able to monitor
induction loops for faults and report back to the control system for
fault flagging
1.4.6 Induction loops are to be designed on a room by room basis
with initial noise analysis being completed prior to design and the
systems are to be commission to appropriate legislative standard
1.4.7 Grounding
User Requirement Statement
1.4.7 It is recommended that all audio equipment is connected to a
single power supply with all equipment on a single phase with a star
earthing arrangement
1.4.7 A technical earth is also appropriate in complex systems and
is to be considered in the design phase
1.4.7 The equipment rack is to be grounded to provide a chassis
earth for equipment
1.4.7 All equipment is to be of the balanced type for common mode
rejection and reduction of interference from Radio Frequency (RF)
and Electro Magnetic Interference (EMI) sources
1.4.7 Unbalanced equipment is to be used for short wiring runs
1.4.7 Balancing transformers are to be used to balance the signal
on longer runs
1.4.8 Integration into EWIS
User Requirement Statement
All audio systems will need to be integrated into the EWIS
1.4.8 Trigger - Mute all sound
1.4.8 Trigger - Enable playback of alarms and/or announcements
1.5.0 LECTURE RECORDING SYSTEMS
1.5.1 Audio recording
User Requirement Statement
1.5.1 Professional line-level audio input with bare wire termination
for direct wiring of stereo balanced (non-powered) or unbalanced
audio
(+4dBu/1.228Vrms/1.737Vpk signal)
1.5.2 Screen Capture
User Requirement Statement
The following guidelines outline the preferred requirements for the
video system capabilities to be able to integrate with the MyMedia
Service:
1.5.2 Capture input resolutions from 640x480 to 1920x1200
(Scaled to the H.264 standard of 1088 maximum number of lines)
1.5.2 All input aspect ratios supported
1.5.2 Digital or analog input via DVI-I connector, passively
adaptable to VGA or HDMI input
1.5.3 Camera Provision
User Requirement Statement
The following guidelines outline the current minimal requirements
for the camera capture capabilities for MyMedia Service:
1.5.3 Digital (HDMI) or Analog (composite) video input
1.5.3 NTSC or PAL
1.5.3 Full Screen (4:3) standard definition input resolutions from
QCIF to D1
1.5.3 Widescreen (16:9) high definition input resolution from 480p
to 1080p
34
Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
1.6.0 WHITEBOARDS AND WRITING SURFACES
1.6.1 Standard Specifications and Board Height
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.6.1 All writing surfaces are to be whiteboards with surfaces of
enamel on steel
1.6.1 The bottom edge of the rear board will be no higher than 0.9
metres and no lower than 0.85 metres
1.6.2 Multiple Sliding Boards
User Requirement Statement
1.6.2 The bottom edge of the rear board will be no higher than 0.9
metres and no lower than 0.85 metres
1.6.2 Multiple sliding boards will consist of no more than three
boards
1.6.3 Board Lighting
User Requirement Statement
1.6.3 Board lighting to be zoned separately
1.6.3 No or little spill from this lighting shall impact on the
projector screen and adversely affect the ambient lighting provision.
1.6.3 Multiple sliding boards will consist of no more than three
boards
1.7.0 CENTRALISATION AND STRUCTURED CABLING SYSTEMS
1.7.1 Audiovisual Centralisation Approach
User Requirement Statement
1.8.0 SPECIFIC ROOM TYPES
1.8.1 Lecture Theatres (Tiered Teaching Spaces) Scope
User Requirement Statement
1.8.1 Lectern and Control
• Fixed lectern as per UTAS standard
• Entry and Exit switches and/or occupancy sensors
• Interactive AV Control interface integrated with lighting, audio
and visual devices
• Lectern light with separate control from AV control system
• Service Desk direct dialling phone
• Remote AV system monitoring
1.8.1 Lighting
• Full control via the AV controls system by user
• Separate control of lighting zones
• Automated control of lighting system to reflect differing projection
states
1.8.1 IT and Computing
• Lectern mounted PC with adjustable monitor and network
connections
• Separate monitor for display of other sourced content (Document
Camera, DVD, Video Conference)
• 2 x USB (minimum) ports for user interaction
• Laptop connection point, on lectern, incorporating power, video
(VGA), audio (RCA) and Ethernet port.
• Wireless network coverage
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Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
1.8.1Projection and Display
• Dual fixed projectors displaying 10:1 at least
• Projectors are to be WUXGA
• Appropriate security measure to secure projector
• Preview monitor screen (as stipulated in the IT and Computing
section of this provision)
• Video signal processing and switching
• Whiteboards
1.8.1 Content Players and Imaging Devices
• Multi format and multi zone content players for replay of video,
DVD and audio sources
• Document camera
• AUX inputs for portable video equipment
1.8.1 Audio
• Voice reinforcement and program replay systems
• EWIS muting interface
• Lectern mounted gooseneck microphone
• Lapel microphone
• Handheld microphone
• Hearing Augmentation and Induction Loop (if required)
• Appropriate sound proofing measures
1.8.1 Recording
• Lecture recording as per lecture recording specification of this
standard (Ref:)
• Image capture from all projected sources
• Desired (future) camera capture of lecturer
1.8.1 Video Conferencing
• If required, should conform and meet the requirements of the
Video Conference section and provisions of this standard
1.8.2 Class Rooms (Flat Floor Spaces) Scope
User Requirement Statement
1.8.2 Lectern and Control
• Either fixed or moveable lectern with suitable cable management
• Entry and Exit switches and/or occupancy sensors
• Interactive AV Control interface integrated with lighting, audio
and visual devices
• Lectern light with separate control from AV control system
• Service Desk direct dialling phone
• Remote AV system monitoring
1.8.2 Lighting
• Full control via the AV controls system by user
• Separate control of lighting zones
• Automated control of lighting system to reflect differing projection
states
1.8.2 IT and Computing
• Lectern mounted PC with adjustable monitor and network
connections
• Separate monitor for display of other sourced content (Document
Camera, DVD, Video Conference)
• 2 x USB (minimum) ports for user interaction
• Laptop connection point, on lectern, incorporating power, video
(VGA), audio (RCA) and Ethernet port.
• Wireless network coverage
36
Audiovisual Design Standards (July, 2011)
How requirement
is met
Assessment
Audiovisual Design Standards
1.8.2 Projection and Display
• Dual fixed projectors displaying at least 16:9 aspect
• Projectors are to be WXGA
• Appropriate security measure to secure projector
• Projector to automatically switch between 4:3 to 16:9 as required
• Preview monitor screen (as stipulated in the IT and Computing
section of this provision)
• Video signal processing and switching
• Whiteboards (wall mounted or mobile)
1.8.2 Content Players and Imaging Devices
• Multi format and multi zone content players for replay of video,
DVD and audio sources
• Document camera
• AUX inputs for portable video equipment
1.8.2 Audio
• Voice reinforcement and program replay systems
• EWIS muting interface
• Lectern mounted gooseneck microphone
• Lapel microphone
• Handheld microphone
• Hearing Augmentation and Induction Loop (if required)
• Appropriate sound proofing measures
1.8.2 Recording
• Lecture recording as per lecture recording specification of this
standard
• Image capture from all projected sources
• Desired (future) camera capture of lecturer
1.8.2 Video Conferencing
• If required, should conform and meet the requirements of the
Video Conference section and provisions of this standard
1.8.3 Meeting Rooms (Video Conference Rooms if required)
Scope
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
1.8.3 Please refer to the Video Conference provision of this
standard
1.8.4 Flexible Teaching Spaces Scope
User Requirement Statement
1.8.4 Lectern and Control
• Either fixed or moveable lectern with suitable cable management
• Entry and Exit switches and/or occupancy sensors
• Interactive AV Control interface integrated with lighting, audio
and visual devices
• Lectern light with separate control from AV control system
• Alternative AV control points throughout the space to allow
flexibility within the space
• Ability to zone areas for audio and visual presentations
throughout the venue
• Service Desk direct dialling phone
• Remote AV system monitoring
1.8.4 Lighting
• Full control via the AV controls system by user
• Separate control of lighting zones
• Automated control of lighting system to reflect differing projection
states
• The ability to have accommodate zoned teaching areas within
these spaces
1.8.4 IT and Computing
• Lectern mounted PC with adjustable monitor and network
connections
• 2 x USB (minimum) ports for user interaction
• Laptop connection point, on lectern, incorporating power, video
(VGA), audio (RCA) and Ethernet port.
• Wireless network coverage
• Incorporation of ‘pod’ PC units throughout the space that are
mobile and are able to be connected into the AV system via wall
mounted connection points
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1.8.4 Projection and Display
• Fixed projectors displaying at least 16:9 aspect ratio with at least
a 1080p resolution
• Number of projectors and location throughout the space are
defined by the design of the space
• Ability to project from different zones, sources and content
• Appropriate security measure to secure projectors
• Projector to automatically switch between 4:3 to 16:9 as required
• Video signal processing and switching
• Whiteboards (wall mounted or mobile)
1.8.4 Content Players and Imaging Devices
• Multi format and multi zone content players for replay of video,
DVD and audio sources
• Document camera(s)
• AUX inputs for portable video equipment
1.8.4 Audio
• Voice reinforcement and program replay systems
• EWIS muting interface
• Ability to zone audio in different teaching areas of this space
• Lectern mounted gooseneck microphone
• Lapel microphone
• Handheld microphone
• Hearing Augmentation and Induction Loop (if required)
• Appropriate sound proofing measures
1.8.4 Recording
• Lecture recording as per lecture recording specification of this
standard
• Image capture from all projected sources
• Desired (future) camera capture of lecturer
1.8.4 Video Conferencing
• If required, should conform and meet the requirements of the
Video Conference section and provisions of this standard.
1.9.0 LECTURE RECORDING SYSTEMS
1.9.1 Projection Screens
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
1.9.1 Screen to be matt white fibreglass surface, with 50mm black
boarder. All screens to be in 16:10 format unless noted
1.9.1 Where the geometry of the room will accommodate, fixed
frame screens are the preference
1.9.1 Tutorial rooms may require chain drive screens and
motorised screens are required where the screen is over 100” size
or cannot be accessed by the user
1.9.1 Motorised screens are to be top roller type up to 200”, for
over 200” a bottom roller is also required
1.9.2 Data Projectors – General Minimum Specification
User Requirement Statement
1.9.2 Suitable for permanent installation and continuous use
1.9.2 Minimum Native resolution of WXGA
1.9.2 Minimum Light output equal to 5000 lumens
1.9.2 Contrast ratio of at least 550:1
1.9.2 Lamp life typically 2000 hours or better
1.9.2 Vertical and horizontal lens shift
1.9.2 RS232 control
1.9.2 Lamp and filter change/cleaning for a ceiling mounted unit
must be possible without dismounting or altering the pan and tilt
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1.9.3 Data projectors – Large Venues
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.9.3 Minimum of 6500 ANSI lumen
1.9.3 Full high definition chip set WUXGA (1920 x 1200)
1.9.3 Full range of lenses
1.9.3 Multiple lamps for redundancy
1.9.3 Minimum contrast ratio of 2000:1
1.9.3 Minimum lens shift of +/- 40% vertical, +/- 10% horizontal
1.9.3 Minimum Inputs ; RGBHV/YPbPr (5 x BNC) , VGA (HD15),
DVI-D, S-Video and composite video
1.9.3 RS232 control
1.9.4 Data Projectors – Lecture Theatres
User Requirement Statement
1.9.4 Minimum of 6000 ANSI lumen
1.9.4 Full high definition chip set WUXGA (1920 x 1200)
1.9.4 Full range of lenses
1.9.4 Multiple lamps for redundancy
1.9.4 Minimum contrast ratio of 2000:1
1.9.4 Minimum lens shift of +/- 40% vertical , +/- 10% horizontal
1.9.4 Minimum Inputs ; RGBHV/YPbPr ( 5 x BNC) , VGA (HD15),
DVI-D, S-Video and composite video
1.9.4 RS232 control
1.9.5 Data Projectors – Classrooms
User Requirement Statement
1.9.5 Minimum of 3500 ANSI lumen
1.9.5 Full high definition chip set WXGA (1920 x 1200)
1.9.5 Large zoom range to accommodate a range of throw
distances
1.9.5 Minimum contrast ratio of 400:1
1.9.5 Minimum lens shift of +/- 40% vertical , +/- 10% horizontal
1.9.5 Minimum Inputs ; RGBHV/YPbPr (5 x BNC) , VGA (HD15),
DVI-D, S-Video and composite video
1.9.5 Long lamp life preferred <5000hrs
1.9.5 RS232 control
1.9.6 Flat Panel Displays
User Requirement Statement
1.9.6 Screen size to comply with sightlines and viewing distance
rules, as stipulated in the Room Design for Teaching and Learning
Spaces section of this standard
1.9.6 Minimum resolution of 1080p
1.9.6 Minimum aspect ratio of 16:9
1.9.6 Flat Panels are to be commercial grade panels suitable for
installation and continuous use
1.9.6 Preference is for LCD type Flat panels monitors
1.9.6 Plasma screens are to be used only where there are no static
images to be displayed
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1.9.6 The flat panel displays are able to be wall mounted
1.9.6 RS232 controllable
1.9.7 Projector and Flat Panel Mounts
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.9.7 Projector mounts to be standardised on a quality range and
to be adequate for the weight and application
1.9.7 Brackets for projectors and flat panel screens are to be
standardised as much as practicable
1.9.7 The heavy duty range is to be used for larger projectors
1.9.7 The locks are to be standardised for common keying
1.9.7 Flat panel brackets range to be standardised on a quality
range and to be adequate for the weight and application
1.9.8 Central Controller
User Requirement Statement
The Controller will perform the following controlling functions:
1.9.8 Projector 1 (or display)
1.9.8 Projector 2 (or display)
1.9.8 Video and audio router
1.9.8 DSP unit(s)
1.9.8 Lighting presets
1.9.8 PIR sensing
1.9.8 DVD player
1.9.8 Image windowing layout if separate unit
1.9.8 Video conference codec
1.9.8 Lecture capture device
1.9.8 Projection screens
1.9.8 Curtains if applicable
1.9.8 Environmental control if applicable
1.9.8 Configurable RS-232 / RS-422 / RS-485 Serial ports
1.9.8 Relays
1.9.8 IR/Serial ports
1.9.8 Digital I/O ports
1.9.8 Network Connectivity: AxLink, ICSNet and Ethernet (TCP/IP)
1.9.9 AV Control System Interface (Touchpanel)
User Requirement Statement
1.9.9 Integrate with the Central Controller for full control of system
devices
1.9.10 Audio and Video Router
User Requirement Statement
1.9.10 8 x 6 matrix switcher for VGA
1.9.10 2 x 2 matrix switcher for composite video and S-video
1.9.10 14 x 6 matrix switcher for stereo audio
1.9.10 Composite video and S-video transcoding scalar
1.9.10 Audio input gain and attenuation
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1.9.10 Audio output volume adjustment and muting
1.9.10 Remote monitoring and control
1.9.10 RS-232 control ports
1.9.11 Scalar
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.9.11 Inputs: Composite video on BNC, S-video on 4-pin mini DIN
1.9.11 Outputs: Scaled RGB output on 15-pin HD
1.9.11 Scales composite video and S-video sources
1.9.11 RGB output rates from 640x480 to 1366x768
1.9.11 Auto switching between inputs
1.9.11 Frame rate conversion
1.9.11 Picture controls for brightness, contrast, colour, tint, detail,
horizontal and vertical positioning and sizing
1.9.11 3:2 NTSC and 2:2 PAL pull down detection
1.9.11 RS-232 serial control
1.9.12 Audio Signal Processing
User Requirement Statement
1.9.12 10 balanced mic/line inputs
1.9.12 6 balanced mic/line outputs
1.9.12 Ethernet port for software configuration/control
1.9.12 RS-232 serial for remote control
1.9.12 Mix, route, combine, EQ, delay, control
1.9.12 Ability to select, view and calibrate
1.9.12 Dynamics: leveller, comp/limiter, ducker, ANC
1.9.12 Routers: 2x1 ~ 32x32
1.9.12 Delays: 0 ~ 2000 ms
1.9.12 Line level <0.006%
1.9.12 Mic level <0.05%
1.9.12 Maximum Gain (mic input to line output): 66dB
1.9.12 Line level input <-80dB
1.9.12 Mic level input <-75dB
1.9.12 Sampling Rate: 48kHz
1.9.12 A/D - D/A Converters: 24-bit
1.9.12 Phantom Power
1.9.15 Lectern Microphones
User Requirement Statement
1.9.15 Gooseneck microphone with selection of interchangeable
capsules
1.9.15 XLR connector
1.9.15 Cardioid pick up pattern
1.9.15 Frequency response within 20-20,000Hz
1.9.15 S/N ratio (A weighted)
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1.9.16 Radio Microphones
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.9.16 System package with different transmitter options
1.9.16 Belt pack system for receiver
1.9.16 Frequency agile with frequency range
1.9.16 Rugged construction
1.9.16 Automatic frequency setup
1.9.16 Wideband FM transmission
1.9.16 Audio outputs to be balanced
1.9.16 Automatic squelch adjustment
1.9.16 Frequency lockable
1.9.16 Battery level indicator
1.9.16 Minimum 8 hour battery life
1.9.17 Document Cameras
User Requirement Statement
1.9.17 Minimum resolution of 1024 x768
1.9.17 Minimum frame rate of 20fps
1.9.17 6 x zoom (optical)
1.9.17 Top light
1.9.17 Flexible gooseneck mounting
1.9.17 Auto white balance and focus ability
1.9.17 Analogue VGA output format
1.9.17 RS232 controllable
1.9.18 DVD/Blu-Ray Players
User Requirement Statement
1.9.18 IR Controllable
1.9.18 Consumer grade device
1.9.18 Multi region
1.9.18 Playback capability: CD, CD-R/RW, VCD, DVD, DVD+/-RW,
MP3, WMA and JPEG
1.9.19 Desktop Computer
User Requirement Statement
1.9.19 Minimum Output Resolution: 1024 x 768
1.9.19
1.9.19
1.9.19
1.9.19
Preferred output resolution: 1920 x 1080
Dedicated minimum graphics: 512 MB
Dual DVI output
Integrated sound
1.9.20 Cabling and Management
User Requirement Statement
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1.9.20 Coaxial:
• 75 ohm cabling including RGBHV, YUV, S-Video and Composite
• Crimp or compression connectors and tools are to be the items
specified by the cable manufacturer only.
• Strain relief boots are to be used on all terminations.
• Coaxial cabling type to be used for recommended distances
(dependent on bandwidth) only.
1.9.20 Audio line level cabling:
• Installation type cabling to be single pair, 100% shield (foil type)
cable with drain wire
• Audio flexible cable is to be star quad flexible braided cable.
• Speaker cable is to be double insulated multi strand style
1.9.21 Cable Labelling
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.9.21 All cable ends must be clearly labelled
1.9.21 Self-laminating label between 50-100mm back from
connector or termination
1.9.21 The label shall duplicate the equipment connection details
and show source, destination and cable ID number
1.9.22 Connector Types
User Requirement Statement
1.9.22 Video/RGBHV:
• Pre-moulded HD-15 to BNC-F adapters should be used where
RGBHV cable connects to VGA HD-15 connectors on equipment.
• Field soldered VGA terminations are not to be used
1.9.22 Audio:
• Commercial grade connectors to be used throughout for balanced
(XLR, TRS) and unbalanced (RCA, TS) connections.
1.9.22 Phoenix:
• Phoenix connectors with extended flat cable clamp areas are to be
used. Bare wire terminations are not to be solder tinned
1.9.22 Serial/Data/D-Connectors:
• D connectors should have plastic, clip-together back shells with
integral cable clamp and thumbscrews.
• RJ-45 connectors should match the cable type (solid/stranded)
and shall have boots.
• Pre-moulded Cat5 cables are to be used for short runs
1.9.23 Equipment Rack
User Requirement Statement
An IEC 19” 14 RU equipment rack is required in each appropriate
area to house the main audiovisual equipment
1.9.23 600mm deep unit
1.9.23 Open frame style
1.9.23 Cable management, rack trays and rack power are to be
provided.
1.9.23 All rack screws are to be black and cage nuts are to be
8mm.
1.9.23 Black washers are to be used for all equipment
1.10.0 SERVICE DESK PHONE IN LEARNING AND TEACHING
SPACES
1.10.1 In-house Phone
User Requirement Statement
An in-house phone is to be installed where there is a minimum of
an in-house PC present in the learning and teaching space.
1.10.1 The phone will be locked down to call only a pre-determined
numbers, namely, UTAS internal numbers.
1.10.1 The phone is to be installed on the lectern or as close as
practical to the supported AV or IT equipment in the venue
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1.10.2 Outside of Venue (At Door) Phone
User Requirement Statement
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
How requirement
is met
Assessment
1.10.2 The phone is to be installed next to the door or as close as
practical
1.10.2 The phone will be locked down to call only a pre-determined
numbers, namely, UTAS internal numbers.
1.11.0 DOCUMENTATION
1.11.1 Construction Drawings
User Requirement Statement
Contractors are to prepare and submit shop drawings before
commencing manufacture or installation. These are to be prepared
using AS1102 drafting standard symbols, provided with a legend.
1.11.1 Audio schematic
1.11.1 Video schematic
1.11.1 Control schematic
1.11.1 Room layout - detailing cable runs, conduits and equipment
location
1.11.1 Room elevation
1.11.1 Rack layout
1.11.1 All custom built structures, penetrations
1.11.2 Post Contract Documentation
User Requirement Statement
1.11.2 As Built Drawings (Supplied in soft and hard copy) to
include:
• Audio schematic
• Video schematic
• Control schematic
• Room layout - detailing cable runs, conduits and equipment
location
• Room elevation
• Rack layout
• All custom built structures, penetrations
• Schematics to include device model and description, cable
numbers, cable types and device input/output connection.
1.11.2 AV Control System coding:
• Touch Panel files
• All relevant files
1.11.2 Inventory details are to include:
• Make and Model and equipment function
• Serial number
• University bar code number
• Warranty expiry date
1.11.2 Installation Manuals to include:
• Contact details of responsible parties
• Service contact details
• As built drawings
• Description of installation including system descriptions
• Operating instructions
• Maintenance procedures
• All equipment operating manuals are to be supplied
1.12.0 TESTING, COMMISIONING AND HANDOVER
1.12.0 TESTING, COMMISIONING AND HANDOVER
User Requirement Statement
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1.12.0 Commissioning is to be arranged to verify the operation of
all equipment items and each system. Commissioning will be
attended by the University’s representative and signed off. All
equipment is to be tested and a written test report is to be
submitted for each system. Format for each test required is to be
approved by the University prior to testing.
Appendix 2 – Mobile Lecture Recording Solutions
This section is designed to provide advice on mobile Lecture Recording devices that can be procured and
implemented, at a faculty or school level. It also specifies the minimum requirements when MyMedia
Services considers the deployment of Lecture Recording solutions, either hardware or software based,
into Locally Managed Learning Spaces.
Mobile Lecture Recording Kits
Option 1: Portable audio only recording
This can be achieved by stocking a range of easy to use MP3 recording devices. These can be used for
recording ‘presenter only’ voice. Using this method tends to result in poorer recording quality especially
if left on the desk. Using a lanyard to ensure device stays in close proximity to the presenter can provide
better results and allow presenter freedom to move freely around the venue.
Recommended audio recording devices:
•
•
Apple IPod with inbuilt microphone or external microphone such as the Blue Mikey for IPod.
Any MP3 recording device that records audio files in an MP3 format (AAC or brand specific file
formats are not supported).
Option 2: Audio + screen recording
This can be achieved through use of a laptop with the Echo360 Personal Capture software installed and
configured. In addition to the laptop, a suitable microphone will also be required.
Laptop minimum specifications:
•
Computer hardware minimum: Dual Core 1.8 GHz, 2GB Ram, 20GB HD free, USB Ports x4,
10/100 network interface, Windows 7 Operating System
Recommended microphones:
•
•
Blue Snowball microphone: A freestanding microphone providing good all round coverage in a
small room. This microphone is able to pick up group discussions when used in suitable
environments.
XTag lapel microphone: A lapel based wireless microphone that allows user to move freely
within room, whilst still providing audio clarity.
Option 3: Audio + screen + user recording
This can be achieved through the use of a laptop with a current version of the Echo360 Personal Capture
software installed and a recommended webcam (details below).
45
Audiovisual Design Standards (July, 2011)
Audiovisual Design Standards
Laptop minimum specifications:
•
Computer hardware minimum: Dual Core 1.8 GHz, 2GB Ram, 20GB HD free, USB Ports x4,
10/100 network interface, Windows 7 Operating System
Recommended webcams:
•
•
Logitech Quickcam Pro 9000
Blue Eyeball Camera
Outfitting LMLS Rooms with MyMedia Recording Capabilities
Option 1: Classroom Capture software solution, providing audio + screen capture
Minimum requirements:
•
•
•
•
Computer hardware minimum: Dual Core 1.8 GHz, 2GB Ram, 20GB HD free, USB Ports x4,
10/100 network interface, Windows 7 Operating System
Echo360 Capture Software
USB Microphone (Blue Microphone or XTag Lapel)
Input from UTAS Learning Services Staff (MyMedia Service)
Option 2: MyMedia Capture Appliance installation
Minimum Requirements:
•
•
•
Appropriate AV infrastructure adhering to UTAS AV guidelines
Input from UTAS ITR AV staff on appropriate infrastructure
MyMedia Capture Appliance (hardware)
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Appendix 3 – Lectern Design
The following section outlines the requirements for standardised lecterns throughout CMLS. All CMLS lecterns are to be of the standardised design as outlined in
the following drawings:
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