EDER679.28
Catherine
Angyue
General Knowledge of Sound
Definition of Sound
Sound is a mechanical wave that is an oscillation of pressure
transmitted through a solid, liquid, or gas, composed of frequencies
within the range of hearing and of a level sufficiently strong to be
heard, or the sensation stimulated in organs of hearing by such
vibrations.
See how does sound “move”…
http://www.fearofphysics.com/Sound/dist.html
 We can “see” soundwaves…
http://www.metacafe.com/watch/755071/shapes_using_sound_effect
s/
SOUND AND TECHNOLOGY
The uses of sound in the sea.
Navigation
---navigate under water
---measure water depth
---find objects on the ocean bottom
Fishing
---use sound to locate fish
---use sound to identify fish
---use sound to measure plankton
The uses of sound in medical
Stethoscope
Shock wave lithoscopy
Ultra sound for diagnosis
Brain surgery using sound waves.
Sound Use on Websites
Website evolvement
 It evolves from an online ‘brochure’ containing text and
pictures, into a richer multimedia experience involving
sound, audio and music.
Fuse of evolvement
 People are turning into increasingly multi-media hungry.
 It offers people another ‘learning’ option.
Where to use sound
Musician and artists pages
http://www.michaeljackson.com/ca/home
Game websites
Web pages aimed at children
Blog & Qzone
http://user.qzone.qq.com/847856727/infocenter
How to use sound
Speaking characters
(Website welcome greeting/Online tutorial/Online
training) http://www.sitepal.com/
Audio articles
Audio logos
Using click sound as feedback
Adding tone & mood(background music)
Pros
Cons
Attract visitors
Personal taste varies
attention
Lengthen users’ stay
Help communicate
information
Purpose out highlights
Might be offensive
Increase page
download time and
add bandwidth
Interfere with other
music playing
Cautions
Offer a sound on/off option
Keep background music simple and quiet
Make sound and website content match
Care about the overall user experience
Make audio files small to load quickly
Do not use sound on web pages that your visitors
will refresh or visit repeatedly.
Sound and Film
Sound and music - or the absence of it has a
profound impact on film.
 Enhance drama and to help illustrate the emotional content.
 Manipulate the feelings and sentiments of viewers.
Noted that…
 Dialogue, music and sound effects recordings are treated as
separate elements.
 Dialogue and music recordings are never referred to as
sound effects.
USES OF SOUND EFFECTS IN MOVIES
The use of sound effects in films has been judged as a technical
ingredient of the filmmaking recipe.
---Collin Hunter
Different types of sound effects in movies
 Hard sound effects
 Background sound effects
 Foley sound effects
 Design sound effects
Sound and Learning
People have the ability to remember hundreds of songs and voices
because they come into the brain through sound. Sounds tend to be
remembered more easily because of the impression they make on
your mind, and they also are harder to ignore.
HOW AUDIO HELPS LEARING
PAST
Audio in education is
often viewed as oldfashioned technology
Audiocassettes and
audio conferencing
NOW AND THE FUTURE
 Collaborative
Computer- based
Education
 Audiographic Learning
(AGL)