Sound card in use?

Am 19. Apr, 2002 schwätzte George Toft so:

> How can I tell if an application is using the sound card? I'm writing
> a script that needs to play a sound, but only if the sound card is not
> currently being used. What I'm doing right now is:
>

>     IN_USE=`lsof | grep dsp`

>
> Which works, but I know lsof can impose a performance hit. Any ideas?

fuser /dev/dsp

You could then walk those proc numbers to see if it's esd or the sound
daemon that KDE is using and try to connect to that daemon.

ciao,

der.hans
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