>> pcm.!default {
>> type plug
>> slave.pcm "surround51"
>>}
>
>this won't upmix stereo to 5.1 as you expected (center and lfe are just left
>and right)
I don't expect it to upmix anything. I use that setting so that media
players can succeed at playing movies with 5.1 audio.
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https://bugs.launchpad.net/bugs/1247719
Title:
crackling, popping, clicking in playback to audigy2 surround51 device
Status in “alsa-driver” package in Ubuntu:
New
Bug description:
After upgrading from Xubuntu 13.04 to 13.10, I hear lots of popping
(aka crackle, click noises) during playback to my Audigy2 surround51
device. This was never a problem before the upgrade. The noises do
not show up if I use the card's default, front, or rear devices
instead, but those leave me without surround sound, so they're no good
for movie playback.
The same problem shows up on the surround40 device. I haven't tried
the other surround* devices.
I can reproduce problem in Totem or gst-launch playbin with an .asoundrc
containing this:
pcm.!default {
type plug
slave.pcm "surround51"
}
I can reproduce problem in Exaile with the custom sink pipeline set to
"alsasink device=surround51" and no .asoundrc.
I'm running the amd64 build of Xubuntu.
My Audigy2 has the first alsa sound card slot, making it my default
sound card.
I am not using PulseAudio.
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