[Asterisk-Users] Music on hold & Read error on sound device

[Wade Weppler]

Your soundcard doesn't have much to do with MOH.  In fact, you can run MOH
entirely without a soundcard.  Therefore, OSS vs. ALSA won't affect your MOH
performance.

You might want to make sure that your musiconhold.conf file is correct, and
that you really do have MPG123 and NOT MPG321.  res_musiconhold.c looks for
mpg123 in /usr/bin, so make sure it's in that location.

If everything is running well, you should see two mpg123 processes running
per "class" when you start Asterisk.

Have you tried using the MP3Player to make sure that mpg123 is working?

-wade

> You didn't mention the distro you are using. I'm wondering if you are
> using one of the distros that leans towards the alsa drivers. If so,
> then chan_oss would have problems.
> 
> On Sun, 2003-07-20 at 19:16, Stuart Hirst wrote:
> > I have installed mpg123 which seems to be working fine but when I
> > start *, I get the following error message at the CLI prompt when I
> > start *:
> >
> > WARNING[81931]: File chan_oss.c, Line 232 (sound_thread): Read error
> > on sound device: Resource temporarily unavailable
> >
> > I have checked that the sound card works by loading X11 and running
> > sound tests which is fine. I have used "lsof /dev/dsp" to see if
> > another application or server is controlling the sound device and
> > without * running, nothing is reported. With * running lsof reports
> > that * has the device. Voicemail works fine.
> >
> > When I put a call on hold the CLI shows moh starting but nothing is
> > played. No errors are reported whilst starting moh.
> >
> > I have been trying lots of different things for hours now without
> > success.
> >