This is a patched version of Andree Buschmann's MP+-decoder. This version has the ability to play back using /dev/dsp: You will hear the song.. . This is a very simple hack to mppdec.
Download latest version of mppdec 1.7.6a/dsp 0.3 for linux(15.Dec.2000).
Download mppdec 1.7.6/dsp 0.1 for linux(6.Nov.2000).
Download Linux-Binary-tgz: Linux-i686-binary 1.7.6a/dsp 0.3(15.Dec.2000).
You can get the original decoder(and encoder!) at http://www.stud.uni-hannover.de/user/73884/audiocoder.html.