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Record sound files for use in asterisk

i keep on forgetting the procedure, so i write it down here as a reference

i usually record the message for my Asterisk PBX using Audacity. I then export the sound as normal WAV file. Then i simply use the tool "sox" to convert it from WAV to GSM

sox myfile.wav -r 8000 -c1 myfile.gsm resample -ql

 it's as easy as that!


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