Very Computer

> I just configured my sound card (i think) with kernel 2.4.18 on Debian,
> and there is sound, except it's very crackly. Could anyone suggest what
> the problem could be? It works well on Windows, and has worked on Linux,
> but that was with SuSE's YaST, so i definetely know it's not the sound
> card. The card is PCI and i ran the following without any trouble..

> insmod soundcore
> insmod ac97_codec
> insmod cs46xx

> I then try cat <sound file> > /dev/audio and there is sound, but you
> can't make anyhing out of it it's that bad.

>> Hey,

>> I just configured my sound card (i think) with kernel 2.4.18 on Debian,
>> and there is sound, except it's very crackly. Could anyone suggest what
>> the problem could be? It works well on Windows, and has worked on
>> Linux, but that was with SuSE's YaST, so i definetely know it's not the
>> sound card. The card is PCI and i ran the following without any
>> trouble..

>> insmod soundcore
>> insmod ac97_codec
>> insmod cs46xx

>> I then try cat <sound file> > /dev/audio and there is sound, but you
>> can't make anyhing out of it it's that bad.

> First of all, you might try using another program to play back audio
> rather than /dev/audio, just to see if the problem is with that
> particular interface.

> Assuming that you get the same results, you might try the ALSA
> (http://www.alsa-project.org) drivers.  These were probably used by
> SuSE. Even with ALSA, support for these cards is incomplete since
> Crystal has not released full specifications for the CS4630, but the
> ALSA cs46xx driver has had some improvements recently and may work
> better for you.

> http://www.alsa-project.org/~valentyn/Alsa-sound-mini-HOWTO-6.html

> When i run amixer, i get the following..

> amixer: Mixer 0/0 open error: Invalid argument

> And here is some more info i'll give you anyway just incase you need
> it..

> > Ta. I tried using the ALSA drivers, but i'm still having a problem. So
> > far everything was working fine (ie. no errors compiling etc) until i
> > had to run amixer as described here..

> > http://www.alsa-project.org/~valentyn/Alsa-sound-mini-HOWTO-6.html

> > When i run amixer, i get the following..

> > amixer: Mixer 0/0 open error: Invalid argument

> > And here is some more info i'll give you anyway just incase you need
> > it..

> Did you run the script to create the alsa device nodes?  If so, you
> should also make sure the user you are running as has permissions on the
> alsa native devices.  If not you should run the snddevices script in the
> alsa driver package to create the native device nodes.

> > $ cat /proc/modules
> > snd-card-cs461x         1792   0
> > snd-cs461x             65792   0 [snd-card-cs461x] snd-pcm
> >  31104   0 [snd-cs461x] snd-timer               9088   0 [snd-pcm]
> > snd-rawmidi            10304   0 [snd-cs461x] snd-seq-device 3608   0
> > [snd-rawmidi] snd-ac97-codec         23552   0 [snd-cs461x] snd-mixer
> >           27688   0 [snd-ac97-codec] snd 34752   1 (autoclean)
> > [snd-card-cs461x snd-cs461x snd-pcm snd-timer snd-rawmidi snd-seq-device
> > snd-ac97-codec snd-mixer] cs46xx
> >    54440   0
> > ac97_codec              9568   0 [cs46xx] soundcore               3492 3
> > [snd cs46xx] ppp_deflate            39040   0 (autoclean) bsd_comp
> >            3968   0 (autoclean) ppp_async               6176   1
> > (autoclean)

> It looks like you have the ALSA (snd-cs461x) and OSS (cs46xx) drivers
> loaded at the same time.  I'm surprised it allowed you to do that, and
> having both loaded could cause some problems.  Unload the OSS module with
> rmmod and see if the problem persists.