70-audio.md

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page	Audio	/audio/

Converting Audio for Yate

Despite its name, the wave module (as in wave/play/...) does not actually support wave files. It can however process raw 8kHz single channel signed-integer PCM audio data. And this is how to create such files:

sox sound.wav -t raw -r 8000 -c 1 -e signed-integer sound.slin

I like to wrap things in shell scripts for simple reuse: wav2slin.sh:

#!/bin/sh
sox $1 -t raw -r 8000 -c 1 -e signed-integer $2