Re: [LAU] Batch conversion from Apple AAC to mp3?

Hello Mark!
   You can batch convert the aac files to mp3. If you directory structure is
very consistent, you can do even the complete structure in one script. I thik
there is a direct aac decoder, but if you don't find one or someone else can
point you at it, mplayer will do the trick. For one directory this would be:
for F in *.aac; do
   mplayer -ao pcm:file=$F.wav $F
   lame -h $F.wav $F.mp3;
done
   So in a bigger context, say you have all the albums resting in one place,
you might pack this loop into another:
for D in *; do
   cd $D
   for F in *.aac; do
   [what you've seen before...]
   mkdir /new/directory/$D
   mv *.mp3 /new/directory/$d
   rm *.wav
   cd ..;
done
   NOTE: This only works, if the directories and files don't have spaces in
them. You can usually quote the variables you use like "$D" and that should
help. But there were some cases - and please excuse me, if I don't remember
them right now, being late and having partied -, where even this didn't work
correctly. Mind you, I think this was using "find" somewhere in the euqation.
   If you have artist/album, you wrap the for D in * loop in another saying:
for A in *; do
   cd A
   mkdir /new/directory/$A
   for D in *; do;
   ...
   cd ..;
done
   NOTE2: You will losse the tags this way.
   Oh and if you want to correct the filenames to not end in .aac.mp3 you can
use mmv:
mmv "*.aac.mp3" "#1.mp3"
   in the for F in *.aac; do loop, as the last line. Don't forget to add the
semicolon.
   Sorry, if this mail was rather upside down and round and round. I am a bit
fuzzy. Yet still I hope, that I could be of some assistence.
   Kindly yours
           Julien

--------
Music was my first love and it will be my last (John Miles)

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Received on Sat Dec 25 04:15:03 2010