Package: mpg123 It seems like mpg123 can't convert mp3s to wave without opening /dev/dsp:
$for f in *; do mpg123 $f -w ${f%%.mp3}.wav; done High Performance MPEG 1.0/2.0/2.5 Audio Player for Layer 1, 2 and 3. Version 0.59q (1999/Jan/26). Written and copyrights by Michael Hipp. Uses code from various people. See 'README' for more! THIS SOFTWARE COMES WITH ABSOLUTELY NO WARRANTY! USE AT YOUR OWN RISK! Can't open /dev/dsp! $ -- Tollef Fog Heen Axiom #1: You Can't Win