On Wed, 30 Aug 2006 18:15:57 +0200
Oliver Eichler <[EMAIL PROTECTED]> wrote:

> Hi,
> 
> I have got a Terratec Aureon 5.1 USB MKII device. I managed to make xine
> work with "pass through" as well as "surround 5.1".
> 
> As my HTPC and amplifier is stored away, I control everything via WLAN,
> HTML interface and a PDA. Thus I do not have the chance to control the
> amplifier's volume. I only can alter alsa's mixer settings. For the
> analog output of the sound device this works well. For the digital
> output there is no volume control out of more or less obvious reasons.
> 
> If I use xine in "pass though" mode it is understood that I can not
> apply any volume control.
> 
> However if I use "surround 5.1" raw digital data is sent to the device.
> I wonder if alsa is able to apply a digital volume control to this
> stream. If it is possible, would some kind soul tell me how?
> 
> Another problem is audio playback via mplayer. This will only deliver
> sound to the front speakes. Can I tell alsa to emulate surround 5.1?
> 
> 
> Thanks,
> 
> Oliver
> 
> 
> 
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Off the top of my head, though it may be a long shot -
ALSA can work with LADSPA plugins, and it is possible to have LADSPA
volume control plugin, maybe one even exists, but I doubt it's a 5.1
plugin.

--Sergei.

-- 
Visit my http://appsfromscratch.berlios.de/ open source project.

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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