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Author: Gregory Nowak
To: Marc Shapiro via Dng
Subject: Re: [DNG] (Almost) no sound under Beowulf
On Fri, Sep 25, 2020 at 10:54:14PM -0700, Marc Shapiro via Dng wrote:
> The issue that I am having is with sound.  My daughter reported that it was
> not working.  I tried playing a video (in Firefox) from my login and also
> got no sound.

You've already gotten good suggestions in this thread. I'd concur with
the advice to get rid of pulseaudio, and use ALSA. If a particular
application requires pulseaudio, install the apulse package, and start
that application through apulse.

One thing I haven't seen mentioned so far is to make sure that each
user who is supposed to be able to play sound is a member of the audio
group. If they aren't in the audio group, add them to the audio group,
log them out, and log them back in. Note, I get sound in Beowulf in
firefox just fine with out pulseaudio installed.

> 3) The 'play' utility from the sox package gives an error whenever I try to
> play an mp3 file.  Using 'aplay' to play .wav files works fine.  What do I
> need to do to play mp3s from the commandline?

Do you have the libsox-fmt-mp3 package installed? Better yet, unless
you have some reason not to, just install the libsox-fmt-all
package. For playing music from the command line, I use mplayer. As
you've discovered, aplay works too, and play should work as well once
you install the necessary format support.


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