On Sat, 31 Jan 2004, Anthony wrote:
> Hi, I've been hearing for some weeks now a very high
> frequency, quiet crackling distortion when using my
> delta44 on playback. This is with driver versions
> 0.9.8 and 1.0.2.
>
> Symptoms:
> * It only occurs on playback.
> * It is not always present, but once it manifests
> it is consistent.
> * I've ruled out external gear by swapping everything
> * It cannot be recorded...i.e. if i use jack capture
> while it is happening, and playback on my other
> card I do not hear it
> * I have been able to reproduce it with alsaplayer
> using the hardware layer (so not a jack problem).
> * shutting down alsa apps and restarting the drivers
> fixes the problem until it reoccurs. It can take
> a long to to resurface.
> * Of course, there is no way for me to rule out the
> card itself as being the problem.
> * Other than driver changes, my system has been
> a rather stable 2.4.21 kernel.
It looks like that something is wrong with DACs.
Does the noise occur on all outputs?
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project, SuSE Labs
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