[Pkg-alsa-devel] Bug#503839: Bug#503839: /usr/lib/alsa-lib/libasound_module_pcm_vdownmix.so: vdownmix from 5.1 does not incorporate LFE channel

[Josh Triplett]

On Sat, Sep 05, 2009 at 01:17:33PM +0200, Elimar Riesebieter wrote:
> * Josh Triplett [081028 09:45 -0700]
> > Package: libasound2-plugins
> > Version: 1.0.16-1+b1
> > Severity: normal
> > File: /usr/lib/alsa-lib/libasound_module_pcm_vdownmix.so
> > 
> > The vdownmix plugin suggests this for .asoundrc:
> > 
> > pcm.!surround51 {
> > 	type vdownmix
> > 	slave.pcm "default"
> > }
> > 
> > Using that setup and a pair of stereo speakers or headphones, I ran
> > "speaker-test -D surround51 -c 6 -t wav".  The audio for the front
> > left, front center, front right, rear left, and rear right speakers
> > came through just fine (and even sounded spatially correct with
> > headphones), but the LFE channel (the .1) did not produce any audio.
> 
> Could you please update to the latest version and test again?

Still a bug in libasound2-plugins 1.0.20-1.

- Josh Triplett