[pulseaudio-discuss] remap-sink reproduces sound on more than the target channels

Lennart Poettering lennart at poettering.net
Thu Jun 19 10:24:08 PDT 2008

On Thu, 12.06.08 20:53, Tanu Kaskinen (tanuk at iki.fi) wrote:

> On Thu, Jun 12, 2008 at 08:36:16AM -0700, Matthew Patterson wrote:
> > I have an update on this front. I downloaded a 8 channel wave file, and 
> > when I play it via the 8 channel sink I get perfect channel seperation. 
> > If I play the same file via one of the 2 channel sinks then I get the 
> > sound reproduced on outputs other than what that sink is tied to BUT the 
> > volumes are different making me think this is some kind of virtual 
> > surround. Does ALSA or pulse have the ability to cause this, or is this 
> > basically the sound card being annoying?
> Pulseaudio semi-intelligently makes stereo streams surround
> streams, if you have a surround sound card. Unfortunately
> this affects the streams from the remap sinks too (I think
> this will be fixed real soon now in svn, if Lennart approves
> the new behaviour). Fortunately the feature can be disabled
> in daemon.conf (disable-remixing).

I have now commited patch that makes remixing optional for remap
sinks, controllable with the remix= parameter to the module.


Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net         ICQ# 11060553
http://0pointer.net/lennart/           GnuPG 0x1A015CC4

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