Hi

I ran across something called sfinfo, which, according to the docs at least is
supposed to do what you're looking for. Can't say for sure cuz I'm still
struggling with the audio stuff myself.

Ed Hoeffner
1-271 BSBE
312 Church St. SE
Mpls, MN 55455
hoeffner at dcmir.med.umn.edu
612-625-2115
612-625-2163 fax