Optional
leftThe left to left channel mix factor (0.0 ≤ x ≤ 1.0)
Optional
leftThe left to right channel mix factor (0.0 ≤ x ≤ 1.0)
Optional
rightThe right to left channel mix factor (0.0 ≤ x ≤ 1.0)
Optional
rightThe right to right channel mix factor (0.0 ≤ x ≤ 1.0)
Mixes both channels (left and right), with a configurable factor on how much each channel affects the other. With the defaults, both channels are kept independent of each other. Setting all factors to 0.5 means both channels get the same audio.