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Re: Sound (SBLive) | Gnome Problems



On Sun, Dec 01, 2002 at 04:49:52PM +1100, Rob Weir wrote:
> On Fri, Nov 29, 2002 at 01:33:51PM -0800, Andres Guedez wrote:
> > Greetings,
> > 
> > I've been having trouble getting sound to work in my
> > Debian unstable setup. Environment sounds seem to work
> > well in KDE (I get a sound when I open and close
> > windows and that kind of stuff) and I was able to get
> > sound when playing MP3s through XMMS. However, I
> > cannot get any sound when playing CDs.
> 
> Have you plugged your cd-rom drive into your sound card?  Most CD
> playing programs completely bypass your computer and just tell your
> drive to blit bits down a digital interface onto your soundcard.

... if you're lucky enough to have a sound card with an S/PDIF
connector for the CD-ROM (which the SB Live does) - 2-pin plug.
Otherwise the CD-ROM does the D-to-A and passes analogue signals
to the sound card - 3 or 4-pin plug.

This may mean you have to set something in the mixer. What Linux calls
it for your SB-Live I don't know. The Windoze drivers for my CMI8738
call it "Monitor S/PDIF IN (pass S/PDIF IN to analogue line out)". The
Linux drivers for my card either don't use S/PDIF input at all or have
this option switched on permanently, compiled in. So if you're really
unlucky you may have to hack the kernel modules. And I think this
means you may have to sign up as a Creative developer to get info on
how to do it. I asked Creative a while back for a data sheet on the
SB-Live and they said that due to "copyright issues" they couldn't
send me one, which is one reason why I don't have a Soundblaster.

If you don't mind the load you might try playing CDs "through the
computer" with something like what I use (not very often, cos I
usually play them through the hi-fi):

cdda2wav -q -e -D/dev/cdrom -N -B 2>/dev/null &

(that's for CD-ROM on ide-cd; if yours is ide-scsi use cdrecord
-scanbus to get the n,n,n parameters for -D )

Pigeon



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