This module offers frame-level reading and writing of MPEG audio files via full access to both MAD and LAME.
Unfortunately, it seems to fail to compile almost everywhere, and certainly here on a generic Red Hat box. After tinkering I belive one may have luck with the older version of LAME mentioned at the end of the Audio::MPEG pod - but perhaps not with a later version of perl.
So, if you have a set-up identical to the module author's, you have access to a very powerful module. Otherwise, stear clear.
Outstanding RT tickets of more than a year in age do not offer much hope that this important namespace will come back to life.
(It may help to know that Audio::MAD does seem to work.)