> 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. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1286021 Title: 2.1 surround support (userspace) Status in “alsa-lib” package in Ubuntu: Fix Committed Status in “pulseaudio” package in Ubuntu: In Progress Bug description: 2.1 surround should work as seamlessly as other surround options, such as 4.0, 5.1 and 7.1 work today. Alsa-lib and pulseaudio patches for 14.04 can be tested here: https://launchpad.net/~diwic/+archive/surround21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1286021/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp