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  1. #1
    Junior Member
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    Jan 2007
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    MP3 Conversion Software

    Anyone use software to convert their MP3's? I've got about 100Gb of MP3's, mostly in 320kbps and I want to create a copy of them in 128kbps for use on my laptop/iPod etc.

    I've seen plenty of software that'll convert the MP3's to a different bitrate, but they all seem to only allow selection of a single folder at a time. I want to point the software at my d:\music folder and get it to output to d:\low_music, but with all the sub-directory structure intact.

    Anyone come across anything that'll do that? I'd like to just leave my PC churning for a while and not have to intervene.

    Hope that makes sense,

    Aynsley

  2. #2
    Senior Member
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    Oct 2005
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    Perhaps I may be wrong here, but I'm not sure this is such a good idea.

    Won't you be compounding compression artifacts by re-compressing an already-compressed file?

    Again, I may be wrong on this.

  3. #3
    Senior Member aubuti's Avatar
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    Oct 2005
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    8,825
    Sure, it would be compounding the compression artifacts, but for playback on a laptop or iPod the loss in sound quality might not be that noticeable. Especially when weighed against the cost of re-ripping everything!

    You need something like Robin Bowes' flac2mp3.pl perl script, except modified for mp3-2-mp3. You could take a look at his script to see how it traverses the directory structure, and instead of decoding with flac, decode with lame before re-encoding at the lower bitrate with lame. Of course, handling the tags would be completely different, too.

    Or try the brute force approach: Load your backup copy of the music library (you do have a backup, don't you?) into foobar2000, and convert all of them to 128. Then re-backup the 320kbps version after the conversion finishes.

    No doubt, there more elegant solutions out there, but I've never been accused of excessive elegance....

  4. #4
    Senior Member
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    Apr 2005
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    Quote Originally Posted by aubuti View Post
    Or try the brute force approach: Load your backup copy of the music library (you do have a backup, don't you?) into foobar2000, and convert all of them to 128. Then re-backup the 320kbps version after the conversion finishes.
    No need to do that. Just load the 320kbps MP3s into foobar2000, and convert them to 128kbps into a different root folder.

    For anyone who runs on Windows, foobar2000 really is your friend - it's a "Swiss Army Knife" audio manipulator. (Oh, and it's a damn fine audio player, too, although I don't use it for that).
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