ActionScript 2.0 Language Reference - Adobe Help and Support

The values for left_input or right_input are determined by the type (stereo or mono) of
sound in your SWF file.
Stereo sounds divide the sound input evenly between the left and right speakers and have the
following transform settings by default:
ll = 100
lr = 0
rr = 100
rl = 0
Mono sounds play all sound input in the left speaker and have the following transform
settings by default:
ll = 100
lr = 100
rr = 0
rl = 0
Availability: ActionScript 1.0; Flash Player 5
Parameters
transformObject:Object - An object created with the constructor for the generic Object
class.
Example
The following example illustrates a setting that can be achieved by using setTransform(),
but cannot be achieved by using setVolume() or setPan(), even if they are combined.
The following code creates a new soundTransformObject object and sets its properties so
that sound from both channels will play only in the left channel.
var mySoundTransformObject:Object = new Object();
mySoundTransformObject.ll = 100;
mySoundTransformObject.lr = 100;
mySoundTransformObject.rr = 0;
mySoundTransformObject.rl = 0;
To apply the soundTransformObject object to a Sound object, you then need to pass the
object to the Sound object using setTransform() as follows:
my_sound.setTransform(mySoundTransformObject);
The following example plays a stereo sound as mono; the soundTransformObjectMono
object has the following parameters:
var mySoundTransformObjectMono:Object = new Object();
mySoundTransformObjectMono.ll = 50;
mySoundTransformObjectMono.lr = 50;
mySoundTransformObjectMono.rr = 50;
mySoundTransformObjectMono.rl = 50;
1130 ActionScript classes