ActionScript 2.0 Language Reference - Adobe Help and Support

Parameters
value:Number - An integer specifying the left-right balance for a sound. The range of valid
values is -100 to 100, where -100 uses only the left channel, 100 uses only the right channel,
and 0 balances the sound evenly between the two channels.
Example
See Sound.getPan() for a sample usage of this method.
See also
attachSound (Sound.attachSound method), getPan (Sound.getPan method),
setTransform (Sound.setTransform method), setVolume (Sound.setVolume
method), start (Sound.start method)
setTransform (Sound.setTransform method)
public setTransform(transformObject:Object) : Void
Sets the sound transform (or balance) information, for a Sound object.
The soundTransformObject parameter is an object that you create using the constructor
method of the generic Object class with parameters specifying how the sound is distributed to
the left and right channels (speakers).
Sounds use a considerable amount of disk space and memory. Because stereo sounds use twice
as much data as mono sounds, it is generally best to use 22-KHz 6-bit mono sounds. You can
use setTransform() to play mono sounds as stereo, play stereo sounds as mono, and to add
interesting effects to sounds.
The properties for the soundTransformObject are as follows:
ll - A percentage value specifying how much of the left input to play in the left speaker (0-
100).
lr - A percentage value specifying how much of the right input to play in the left speaker (0-
100).
rr - A percentage value specifying how much of the right input to play in the right speaker (0-
100).
rl - A percentage value specifying how much of the left input to play in the right speaker (0-
100).
The net result of the parameters is represented by the following formula:
leftOutput = left_input * ll + right_input * lr
rightOutput = right_input * rr + left_input * rl
Sound 1129