SpectralAnalysis

From techdaze

Audacity http://audacity.sourceforge.net/

The Acoustics of Vowels http://www.exo.net/~pauld/workshops/atomicoperaworkshop/operasingingacoustics.htm

Using Your Computer's Sound Input to Improve Your Feminine Voice http://members.tgforum.com/jamie/fvoice/femv.html