Resetting the sound system

[Liontaur]

2010/10/28 Michaël Grünewald <michaelgrunewald at yahoo.fr>

> Dear list,
>
> the audio software I use sometimes seems to handle unappropriately its
> input and leave the sound system in a strange state.  When this happens, the
> lowest frequencies of the played sound are very attenuated and what is still
> audible sounds unpleasantly metallic.  Rebooting the machine immediately
> brings up the sound system in shape again, but it would be nice if they were
> a more sensible way to reset it!
>
> Here are the relevant lines of `dmesg`:
>
> pcm0: <VIA VT8237> port 0xe100-0xe1ff irq 22 at device 17.5 on pci0
> pcm0: [ITHREAD]
> pcm0: <VIA Technologies VIA1617A AC97 Codec>
> pcm0: <VIA DXS Enabled: DXS 4 / SGD 1 / REC 1>
>
> Best regards,
> Michael


Not sure if there's an easier way, but if you've got the audio driver
kldloaded then just unload and reload it. If it's compiled in your kernel
then I don't know.
kldunload snd_via8233
kldload snd_via8233

Mark