Re: Question about sound controls.

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Steven W. Orr wrote:
> I'm running KDE and there's a huge list of sliders for controlling 
> sound and I just don't know what they're for.
> 
> Can someone point me to a reference? Also, how can I tell which ones are 
> useful? I have a SBLive! card.

You have discovered the Mixer Of Doom!

The SBLive is a rather complex chip for a sound chip, with a lot of
digital signal processing capability. Apparently, the ALSA driver, by
default, provides some programming for the DSP, and exposes this through
the mixer. Hence, a rather complex mixer.

IEC958 appears to be the standard behind S/PDIF, the Sony/Philips
Digital Interface Format, which is what is normally used for digital
output. Given that, a number of sliders names become clearer.

More information can be found in the Linux source tree (or, if you have
kernel-doc installed, under /usr/share/doc/kernel-doc-2.6.10) at
Documentation/sound/alsa/SB-Live-mixer.txt or on the Web at
http://lwn.net/Articles/64341/

Hope this helps,

James.
-- 
E-mail address: james | History books in Ireland and Scotland are littered
@westexe.demon.co.uk  | with the 'wrong' spelling, and there is no law that
                      | tells you how to spell whisky. The Welsh even spell it
                      | 'chwisgi', which makes sense after two or three large
                      | ones.  -- http://uk.glenfiddich.com/world/faqs/


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