Re: functionality of PCM slider in alsamixer for Realtek ALC883/HDA NVidia

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On Thu, 28 Dec 2006 20:56:12 -0800 (PST)
Bill Unruh <unruh@xxxxxxxxxxxxxx> wrote:


> Anyway it sounds like either you have the wrong sound card selected (ie you
> have more than one and the pc speaker is one of them) or you have a
> slightly weird soundcard.
> I think that the labling of the various controls is up to the sound card
> manufacurer. Ie, this has nothing to do with alsq-- they just pass on to
> the users the functionality that the soundcard has. If the soundcard
> manufacturer decided that PCM meant Pretty Cool music and when you adjust
> the slider the card starts to play Bing Cosby songs, then that is what the PCM
> slider will do.
> 


Really ?

That is, the manufacturer created a mechanism which differentiates between
PCM (Pulse Code Modulation) stream, coming from, say, FLAC file, and does
not affect its volume, and between PCM stream, coming from terminal bell/beep,
and does affect its volume ?

And what is the physical mechanism behind this ?

What does the word "weird" mean in this context ? Are you sure it's a
weird card and not a weird driver ?

I have only one soundcard in my machine, the onboard Realtek ALC883/HDA NVidia.

Thanks,
  Sergei.

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

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