ECE 40020
Sound Reinforcement System Design
Spring 2016
EASE Sound System Design Project Report
Evaluation
Group Members
Time Spent*
Initials
Score**
*documented in Activity Log Sheet for each team member, included as Appendix A
**may be different for each team member, based on amount of effort proportionally invested
CRITERION
Engineering design process
System design constraint analysis
Design constraint satisfaction
Component selection
Technical content / creativity
Writing style / professionalism
SCORE
0
0
0
0
0
0
1
1
1
1
1
1
2
2
2
2
2
2
3
3
3
3
3
3
4
4
4
4
4
4
5
5
5
5
5
5
6
6
6
6
6
6
WGT.
7
7
7
7
7
7
8
8
8
8
8
8
9
9
9
9
9
9
10
10
10
10
10
10
PTS.
2
2
2
2
1
1
TOTAL
Instructor comments:
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ECE 40020
Sound Reinforcement System Design
Spring 2016
TABLE OF CONTENTS
Abstract
ii
1.0 Engineering Design Process
1
2.0 Design Constraint Analysis
?
3.0 Design Constraint Satisfaction
?
4.0 Equipment Selection
?
4.1 Power Amplifier Requirements and Selection
?
4.2 Signal Processing Requirements and Selection
?
4.3 Mixing Console Requirements and Selection
?
4.4 Microphone Requirements and Selection
?
4.5 Rack Requirements and Design
?
4.6 Cabling and Wiring Requirements
?
5.0 Summary and Recommendations
?
6.0 References
?
Appendix A: Activity Logs
?
Appendix B: Venue Illustrations
?
Appendix C: Loudspeaker Placement and EASE Simulation Results
?
Appendix D: Signal Path Wiring Diagram
?
Appendix E: Rack Design and Power Sequencing/Distribution
?
Appendix F: System Component List and Street Price Cost Estimate
?
Appendix G: Manufacturer Data Sheets
?
-i-
ECE 40020
Sound Reinforcement System Design
Spring 2016
Abstract
This report documents the design of a complete sound reinforcement system tailored for a
generic, 6000-seat fan-shaped multi-purpose auditorium, with (approximately) 3750 seats on the
main floor, 1500 seats on the first balcony, and 750 seats on the second balcony. Room
dimensions and configuration should be chosen based on the specified seating capacity.
The primary system design constraints are as follows:
 minimum SPL of 105 dB at back row of (main floor) seating
 no more than 5 dB variation in SPL over the entire seating space for the 500 Hz, 1 KHz,
2 KHz, 4 KHz, and 8 KHz frequency bands
 frequency response of 40 – 16,000 Hz  5 dB
 %ALCONS no greater than 10% over entire seating space
 minimum 48-channel mixing console
 minimum of 4 separate monitor mixes (and corresponding monitor loudspeaker systems –
may choose an in-ear monitoring system as an alternative)
 support for a minimum of 20 compatible wireless microphone channels (include multiple
transmitters/receivers to support all 20 channels)
 good assortment of general-purpose wired and wireless microphone systems for speaking,
individual vocalists, a variety of musical instruments, choral performances
 digital media recording/playback capability
 all equipment mounted in rack cabinet(s)
 budget of $500,000
Delete this text box before printing your report. Also,
delete all highlighted instructions provided in this
skeleton file as you edit each section of your report. Do
NOT change any of the formatting or page setup. Use a
point size of 12 with a vertical spacing of 18.
Submit a “.pdf” version of your completed report
on-line via the link provided on the course web site.
-ii-
ECE 40020
Sound Reinforcement System Design
Spring 2016
1.0 Engineering Design Process
Describe the characteristics of the venue for which the sound reinforcement system is being
designed (dimensions, volume, surface materials). Include dimensioned illustrations of the venue
(e.g., based on adaptation of the generic EASE auditorium model) in Appendix B.
Outline the major issues that you have addressed in the design of this system and describe the
role/contribution of each team member toward this end.
Length should be about three pages.
-1-
ECE 40020
2.0
Sound Reinforcement System Design
Spring 2016
Design Constraint Analysis
Discuss how the basic design constraints (listed in the Abstract) guided the overall system
configuration and component selection.
Issues to consider include:
 reliability (points of susceptible failure, expected failure rates of various components,
backup/redundancy recommendations)
 safety (electrical – grounding, power, surge/lightning protection
 mechanical – loudspeaker rigging considerations, rack accessibility and stability)
 economic (budget constraints)
 social (accommodation for hearing impaired)
 architectural/aesthetic (constraints on placement of loudspeaker clusters, type/placement
of microphones, location of mixing console)
Length should be about three pages.
-2-
ECE 40020
Sound Reinforcement System Design
Spring 2016
3.0 Design Constraint Satisfaction
Describe the considerations and alternatives considered for loudspeaker selection, placement, and
rigging. Reliability and safety considerations associated with the rigging should be addressed.
Include an illustration of the loudspeaker location/aiming and the associated EASE simulation
results in Appendix C. Document the extent to which you have satisfied the overall project design
constraints.
Length should be about three pages.
-3-
ECE 40020
Sound Reinforcement System Design
Spring 2016
4.0 Equipment Selection
4.1 Power Amplifier Requirements and Selection
Show calculations used to determine electrical wattage requirements for amplifiers selected
(based on SPL requirements and loudspeaker sensitivity specifications). List the alternatives
considered and describe the selection rationale. Also, summarize the A.C. power demands.
Length should be about two pages.
-4-
ECE 40020
Sound Reinforcement System Design
Spring 2016
4.2 Signal Processing Requirements and Selection
Describe the signal processing requirements, discuss alternatives considered, and provide
rationale for the component selections made. Include the signal path wiring diagram as
Appendix D.
Length should be about two pages.
-5-
ECE 40020
Sound Reinforcement System Design
Spring 2016
4.3 Mixing Console Requirements and Selection
Describe the mixing console requirements, discuss the alternatives considered, and provide
rationale for the selection made.
Length should be about two pages.
-6-
ECE 40020
Sound Reinforcement System Design
Spring 2016
4.4 Microphone Requirements and Selection
Describe the microphone requirements (both wired and wireless), discuss alternatives
considered, and provide rationale for the selections made.
Length should be about two pages.
-7-
ECE 40020
Sound Reinforcement System Design
Spring 2016
4.5 Rack Requirements and Design
Describe the rack selection and layout (as well as power sequencing and distribution) to be
utilized and provide rationale for choices made. Include an illustration of the rack design as
Appendix E.
Length should be about two pages.
-8-
ECE 40020
Sound Reinforcement System Design
Spring 2016
4.6 Cabling and Wiring Requirements
Describe any special signal cabling and wiring requirements (snakes, stage monitors, primary
loudspeakers, wire gauge, etc.). Include balanced/unbalanced lines and interface requirements.
Length should be about two pages.
-9-
ECE 40020
5.0
Sound Reinforcement System Design
Summary and Recommendations
Summarize the system configuration recommended.
Include the component selection chart and street price estimate as Appendix F.
Include any applicable manufacturer data sheets as Appendix G.
Length should be about two pages.
-10-
Spring 2016
ECE 40020
Sound Reinforcement System Design
Spring 2016
6.0 References
List any references (e.g., data sheets, application notes, web sites) used in formulating your
design. Be sure to cite these references in your report.
Use APA format for references.
-11-
ECE 40020
Sound Reinforcement System Design
Appendix A:
Activity Logs
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Spring 2016
ECE 40020
Sound Reinforcement System Design
Activity Log for: <name-1>
Activity
Date
Entries must be typed
-13-
Spring 2016
Role: <role on team>
Start Time
End Time
Time
Spent
ECE 40020
Sound Reinforcement System Design
Activity Log for: <name-2>
Activity
Date
Entries must be typed
-14-
Spring 2016
Role: <role on team>
Start Time
End Time
Time
Spent
ECE 40020
Sound Reinforcement System Design
Activity Log for: <name-3>
Activity
Date
Entries must be typed
-15-
Spring 2016
Role: <role on team>
Start Time
End Time
Time
Spent
ECE 40020
Sound Reinforcement System Design
Activity Log for: <name-4>
Activity
Date
Entries must be typed
-16-
Spring 2016
Role: <role on team>
Start Time
End Time
Time
Spent
ECE 40020
Sound Reinforcement System Design
Appendix B:
Venue Illustrations
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Spring 2016
ECE 40020
Sound Reinforcement System Design
Line drawing of auditorium model (adapted from EASE library).
-18-
Spring 2016
ECE 40020
Sound Reinforcement System Design
Spring 2016
Appendix C:
Loudspeaker Placement and EASE
Simulation Results
-19-
ECE 40020
Sound Reinforcement System Design
Spring 2016
Illustrations depicting loudspeaker location and aiming, along with corresponding EASE
simulation results, should be included here. Concentrate on the 500 Hz, 1 KHz, 2 KHz, 4 KHz,
and 8 KHz frequency bands, showing SPL coverage plots as well as %ALCONS estimates.
-20-
ECE 40020
Sound Reinforcement System Design
Appendix D:
Signal Path Wiring Diagram
-21-
Spring 2016
ECE 40020
Sound Reinforcement System Design
The signal path wiring diagram should be included here.
-22-
Spring 2016
ECE 40020
Sound Reinforcement System Design
Appendix E:
Rack Design and Power
Sequencing/Distribution
-23-
Spring 2016
ECE 40020
Sound Reinforcement System Design
Spring 2016
Illustrations of the rack layout/design along with a diagram of the A.C. power distribution
should be included here.
-24-
ECE 40020
Sound Reinforcement System Design
Appendix F:
System Component List
and
Street Price Estimate
-25-
Spring 2016
ECE 40020
Manufacturer
Sound Reinforcement System Design
Model No.
Description
Spring 2016
Unit Cost
Qty
TOTAL COST
-26-
Total Cost
?,???.??
ECE 40020
Sound Reinforcement System Design
Appendix G:
Manufacturer Data Sheets
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Spring 2016