OptionalleftThe left to left channel mix factor (0.0 ≤ x ≤ 1.0)
OptionalleftThe left to right channel mix factor (0.0 ≤ x ≤ 1.0)
OptionalrightThe right to left channel mix factor (0.0 ≤ x ≤ 1.0)
OptionalrightThe 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.