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Old 11-12-2008, 06:51 AM   #1
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Registered: Jan 2008
Distribution: Ubuntu and Gentoo
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Convert m4b to mp3 (batch)

I've got quite a few audio files that are m4b's, and while on an ipod that worked just fine. Now however, I need to be able to listen to those files on a MP3 player that only supports MP3... Is there any way to make a bash script that could convert all m4b files inside a folder into mp3's? I've found a little python program that can convert them to ogg, but that won't do in this case.

Is it simple to modify that program to make mp3's instead?
Here is the original program:
Can a simple bash script do the job, if so how would I do that?

I'm familiar with linux, not so mutch with making scripts....
Any help would be greatly appreciated.
Old 11-12-2008, 02:16 PM   #2
Registered: Mar 2005
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Old 11-13-2008, 05:10 AM   #3
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thank you!
Old 12-27-2011, 04:49 AM   #4
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Just google search Step by Step Guide on How to Convert M4B to MP3 as well as Split M4B with the Powerful M4B to MP3 Converter

you will find a simple solution
Old 02-12-2012, 04:45 AM   #5
Registered: Dec 2008
Location: HongKong
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Recently I have to make a similar file convert. On request, I have to rip the CD music files we have at home, convert and put it up and running as mp3 on iPod.

Using a combination of K3B and VLC conveniently did the trick.

In K3B you have the option: New Audio CD Project. And if it doesn't attend all your needs in terms of formats, you can additionally use the VLC option: Media > Convert Save.

Very functional and out of the box.
Old 03-31-2012, 01:55 PM   #6
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bash script

I wrote a small script that does it:

mkdir -p mp3s

IFS=$(echo -en "\n\b")

for i in `find . -type f -iname "*.m4[ab]" -print`; do
echo $i
NAME=`echo $i | sed -e 's/\.\///' -e 's/\.m4b//g' `
echo "doing '$NAME'"
faad --stdio $i | lame --preset standard - "mp3s/${NAME}.mp3"




ffmpeg, mp3

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