On Fri, 24 Jan 2025, Dan Ritter wrote:

> > On Fri, 24 Jan 2025, Roger Price wrote:
> >  rprice@maria ~ /usr/local/bin/bark.sh 5
> >  bark.sh starts ... XDG_RUNTIME_DIR=/run/user/2108
> >  bark.sh calls Biff ... XDG_RUNTIME_DIR=/run/user/2108
> >  Playing Sparc Audio '/mnt/home/rprice/bark/h5.au' : Mu-Law, Rate 8000 Hz, 
> > Mono
> > 
> > I hear the bark.

> What is it using to play the .au file? OSS, ALSA, or something
> else?

 rprice@maria ~ aplay -v ~/bark/h5.au
 ALSA <-> PulseAudio PCM I/O Plugin

> I would guess that VLC is triggering the start of PulseAudio,
> and after that PA has disabled OSS.
> 
> After VLC runs, does aplay work to play sounds?

Yes and no.  Yes - I can manually run aplay and hear the sound.  No - a cron job
cannot use aplay and gets the error message:

 From: Cron Daemon <r...@maria.rogerprice.org>
 Subject: Cron <rprice@maria> /mnt/home/rprice/bark/bark.sh S30

 ALSA lib pcm_dmix.c:999:(snd_pcm_dmix_open) unable to open slave
 aplay: main:831: audio open error: Device or resource busy

Roger

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