Ubuntu
pulseaudio package

  1. Trusty (14.04)
  2. Bug #1286021
  3. Comment #18

Comment 18 for bug 1286021

Revision history for this message
David Henningsson (diwic) wrote :

> pulseaudio assume surround21 is four channels

For PulseAudio, surround21 is now three channels. It's mapped to four channels in alsa-lib, exactly which four channels is based on chmap information from the kernel.

> Does it mean that test with 5.1 downmix to surround21 ?

Yes I believe 5.1 would be downmixed to 2.1.