Re: Turning off Upmixing

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On 5/4/07, Ingo Müller <alsa@xxxxxxxxxxxxxxx> wrote:
> Hi!
>
> Lee Revell schrieb:
> > On 5/3/07, Adam Thomas-Murphy <patlaborforce@xxxxxxxxx> wrote:
> >> Thank you that is just what I was looking for.  Though since I'm still
> >> rather new to Linux, how would I set that?   Would I need to put it in a
> >> .asoundrc file?
> >
> > It's up to the application to use a stereo device when playing back
> > stereo and a 5.1 device when playing back 5.1 audio.
> >
> > Lee
>
> That's of course correct. Just in case the OP needs an explanation a bit
> more detailed: Normally, every application compatible with ALSA lets you
> choose the virtual device it uses to play sound. These devices are
> provided by ALSA and can by extended by the .asoundrc file. You can
> imagine them as virtual sound cards. There are a lot of predefined
> devices, among them the "front" and "plug:surround51" devices, so you
> don't need to mess with .asoundrc. Everything you have to do now is make
> every application use the appropriate device. This differs heavily from
> application to application, so no detailed instruction can be given.
> Just look for sound/alsa/playback device etc.

I don't think this should necessarily be configurable in the app.  It
should just use surround51 for surround content and default for stereo
content.  This assumes you expect a stereo file to only play out of
the front speakers (many users expect it to be upmixed).

Lee

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