Audiovisual Design

SOUND

The audiovisual relationship is not natural but rather a sort of symbolic pact to which the audio spectator agrees to forget that sound is coming from the loud speakers and the picture from the screen. The audio spectator considers the elements of sound and vision.

Acoustic Properties

Loudness
The sound we hear results from vibration in the air. The amplitude, or breadth, of vibrations produces our sense of loudness, or volume AV sound constantly manipulates sound volume.
Loudness is also rated to percieve distance; often the louder the sound the closer it would be.

Pitch
The frenquency of sound vibrations govern pitch, or the percieved 'highness' or 'lowness' of the sound. Most sounds in life are 'complex tones' made up of different frenquencies. Pitch helps us to distingish music and speech from other sounds. Pitch also serves to distingish among objects.
Low pitched sounds such as thumps, can evoke hollow objects, while high pitched sounds suggest smoother or harder surfaces and more dense objects