Channels are swapped when mixing two stereo streams
Submitted by Tanu Kaskinen @tanuk
Assigned to pul..@..op.org
Description
I played two songs (stereo audio) simultaneously, one with the left channel muted and one with the right channel muted. I listened with headphones, and the one that should have played to the left ear played to the right ear and vice versa. One of the songs was shorter than the other, and when the shorter one ended, the longer song jumped from the right ear to the left ear.
The symptoms suggest that the mixing code is broken: it swaps channels. With two streams active the channels are the wrong way around, but with only one stream the channels are right.