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2013-05-07 WMA to MP3

This is based on How to Convert Unprotected WMA Files Into MP3 Files. I’m leaving the instructions here for my future self. :)

for file in *.wma; do
  mplayer -vo null -vc dummy -af resample=44100 \
    -ao pcm:file="${file%%.[Ww][Mm][Aa]}.wav" "$file"
  lame --preset standard "${file%%.[Ww][Mm][Aa]}.wav" \
    "${file%%.[Ww][Mm][Aa]}.mp3"
done 

Use locate lame|grep 'lame$' and locate mplayer|grep 'mplayer$' to find the location of your executables. On a Mac, they’re probably not on your PATH… I installed MPlayer OSX and iTunes-LAME to get the executables. You’ll need to do something similar.

This is the result I just used for some files with upper case file extension:

for file in *.WMA; do
  "/Applications/MPlayer OSX.app/Contents/Resources/External_Binaries/mplayer_intel.app/Contents/MacOS/mplayer" \
    -vo null -vc dummy -af resample=44100 \
    -ao pcm:file="${file%%.[Ww][Mm][Aa]}.wav" "$file"
  "/Applications/iTunes-LAME.app/Contents/Resources/lame" \
    --preset standard "${file%%.[Ww][Mm][Aa]}.wav" \
    "${file%%.[Ww][Mm][Aa]}.mp3"
done 

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