Wma to Mp3 a folder in one command line

I have some albums that were ripped in wma form (yes a shame I know). I wanted them converted into mp3 so my collection remains consistent.

So this would be a command to run in a folder filled with .wma files. This keeps the names but not the tags so be sure to use something like easytag to fill them after.

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for i in *.wma ; do mplayer -vo null -vc dummy -af resample=44100 -ao pcm:waveheader "$i" && lame -m j -h --vbr-new -b 320 audiodump.wav -o "`basename "$i" .wma`.mp3"; done; rm -f audiodump.wav