A Curmudgeon TechnologistGet off my lawn!

Here’s a quick script that can convert m4a (AAC encoded music files) to mp3. This is a nice example of how powerful the command line can be.

It uses mplayer to write out the raw wave file, then uses lame to encode the mp3′s. After that it cleans up the file endings using sed. This script requires mplayer and lame to be installed.

It should work well on Fedora Core 5 and Ubuntu 6.

#!/bin/bash

for i in *.m4a
do
mplayer -vc null -vo null -ao pcm:fast:waveheader “${i}”
mv audiodump.wav “${i}.wav”
done

for i in *.wav
do
lame –preset fast standard “$i” “$i.mp3″
rm -rf “$i”
done

for i in *.mp3
do
x=`echo “$i”|sed -e ‘s/m4a.wav.mp3/mp3/’`
mv “$i” “$x”
done

[tags]programming, bash, linux, fedora, ubuntu, lame, mplayer, command line[/tags]

This entry was posted on Monday, September 25th, 2006 at 7:41 am and is filed under linux, programming. You can follow any comments to this entry through the RSS 2.0 feed. You can leave a comment, or trackback from your own site.