Custom Music on Hold for Asterisk

Thu Jul 02 05:50:15 -0700 2009

I needed to change the music on hold for my Asterisk servers…

First, find your favorite music files in basically any format, get them somewhere where you can access them.

Then make sure you have ffmpeg installed, for mac users you can just do “port install ffmpeg” which can take a while as it has to install all the audio and video format libraries.

Go into the folder where you put the music files, and run the following (assuming you are on a UNIX client)

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for f in `ls *.mp3` ; do FILE=$(basename $f .mp3) ;
  ffmpeg -i $FILE.mp3 -ar 8000 -ac 1 -ab 64 $FILE.wav \
  -ar 8000 -ac 1 -ab 64 -f mulaw $FILE.pcm \
  -map 0:0 -map 0:0 ;
done

This will change your “MP4” files into a PCM (ulaw) and WAV file format.

Then move the existing music on hold directory in asterisk to another name:

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# mv /var/lib/asterisk/moh /var/lib/asterisk/moh-original
# mkdir /var/lib/asterisk/moh

Then install your new music files

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# cp ~/*.pcm /var/lib/asterisk/moh/
# cp ~/*.wav /var/lib/asterisk/moh/

Then reload Asterisk and you should be good to go!

Mikel

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