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Topic: Converting over 1000 files from mp3 to wav; fastest method? (Read 1986 times) previous topic - next topic

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  • Extorris
  • [*]
Converting over 1000 files from mp3 to wav; fastest method?
Hey everyone,

I'm a musician, and I've recently decided to go digital from analog (in terms of playing). I've uploaded a metric crapton of myself playing, and after week, I've noticed that I have been saving them as mp3 instead of wav! Each clip is anywhere from 2 to 15ish seconds, and I was wondering if there's a semi-fast way to convert them all? I would like to drag-and-drop, but from the looks of it, I might be spending the next 2-3 days converting each file individually.

I kept hearing about this forum and how smart all of you are , so I figured I'd try here before I get carpel tunnel.

Thanks a ton in advanced if any of you have suggestions on what programs to use. (I'm using a PC and my budget is $100-$200).

  • skamp
  • [*][*][*][*][*]
  • Developer
Converting over 1000 files from mp3 to wav; fastest method?
Reply #1
Why do you want to convert your MP3s to WAV? Sound quality will be exactly the same (not better), but filesizes will be 4 to 11 times larger.
If you still want to mass convert your MP3s, I recommend foobar2000 (right click on a selection of files -> "Convert").
See my profile for measurements, tools and recommendations.

  • Extorris
  • [*]
Converting over 1000 files from mp3 to wav; fastest method?
Reply #2
I suppose I should have been more specific (thanks for the quick reply, skamp). I need them in .wav because the DAW I'm currently using doesn't accept .mp3 files, otherwise, I would of just went with them. I'll check out that foobar2000 program right now. Thanks again!

EDIT:: It worked! Thanks again, man, I really really appreciate it! Cheers!
  • Last Edit: 07 November, 2012, 03:33:17 PM by Extorris

  • DVDdoug
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Converting over 1000 files from mp3 to wav; fastest method?
Reply #3
There are lots of programs to do it...  I'd use XRECODE (FREE!!!) or XRECODE II ($15 USD).  It's very easy to use...  You just select your output format and drag & drop the files, and go...    (I've never batch converted 1000 files, but I've probably done about 50 at a time.  And, I'm usually converting to MP3, but that shouldn't make a difference.)
  • Last Edit: 07 November, 2012, 03:38:25 PM by DVDdoug

  • Porcus
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Converting over 1000 files from mp3 to wav; fastest method?
Reply #4
I suppose I should have been more specific (thanks for the quick reply, skamp). I need them in .wav because the DAW I'm currently using doesn't accept .mp3 files


But you originally had them in something else? Dig up your originals.

  • yourlord
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Converting over 1000 files from mp3 to wav; fastest method?
Reply #5
mp3 is a lossy format. If you convert them to wav, mix them in a daw then export back to a lossy format you will have quality issues. It may or may not be audible, but it's something to keep in mind.

  • nu774
  • [*][*][*][*][*]
  • Developer
Converting over 1000 files from mp3 to wav; fastest method?
Reply #6
As far as I know, Apple's MP3 decoder implementation is quite fast. It's faster than  fb2k decoder in my environment.
So, it might be worth to have a look at iTunes... although I'm not a serious iTunes user and I don't know how well iTunes parallelizes the decoding task.

BTW, the attached is a win32 CLI MP3 decoder based on Apple implementation; requires CoreAudioToolbox to run (which is installed by iTunes or QuickTime installer).
This toy program can show you the speed of Apple's implementation, but I don't recommend you to use this seriously.
[ Specified attachment is not available ]

  • smok3
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  • Moderator
Converting over 1000 files from mp3 to wav; fastest method?
Reply #7
If you have 1000 clips with say 10s length, then that is less that 3 hours of material. Random album (1 hour) converts in 15 seconds (on my machine, using ffmpeg as decoder), so your conversion should not take more than 45 seconds.... , no need to invent any parallel workflow.
  • Last Edit: 08 November, 2012, 03:22:08 AM by smok3
PANIC: CPU 1: Cache Error (unrecoverable - dcache data) Eframe = 0x90000000208cf3b8
NOTICE - cpu 0 didn't dump TLB, may be hung

  • Nessuno
  • [*][*][*][*]
Converting over 1000 files from mp3 to wav; fastest method?
Reply #8
If you have 1000 clips with say 10s length, then that is less that 3 hours of material. Random album (1 hour) converts in 15 seconds (on my machine, using ffmpeg as decoder), so your conversion should not take more than 45 seconds.... , no need to invent any parallel workflow.

Maybe a little more, to take into account 1000 iterations of an open > read > create > write > close loop.
All the more in this case I expect the decoding job to stay idle most of the time, waiting for I/Os to complete and a parallel workflow might actually worsen performances.
... I live by long distance.