sound card configuration

[stan]

On Sun, 22 Nov 2009 11:07:57 +0100
François Patte <francois.patte at mi.parisdescartes.fr> wrote:

> Is there a tutorial to configure a sound card under fedora 10?

I'm not aware of one, though that doesn't mean there isn't one.

> 
> My sound card (Realtek ALC 882 integrated on Asus P5WD2 mobo) is
> working but the sound is not clear: a lot of interferences (bzzzz,
> criccroc...), so, in piano passages of record, I can ear more
> electronic sounds than music....
> 
> Is there a way to have no background noise?

If the noise isn't there in the original recording, it is probably
coming from processing *after* the sound card.  Are you changing the
frame rate on the sound?  On the fly resampling can lead to artifacts
such as you describe.

The sound card does the best it can under all circumstances given the
input and output.  There really isn't any configuration unless you are
using the wrong driver.

If this doesn't give you enough hints to solve the problem, you will
need to post more information.

What is the source of the music?

How does it get to the sound card?

What program are you using to record?

Is pulseaudio running?  Have you configured it with pavucontrol?

Are frame rates consistent throughout?