From UCL DEPT OF PHONETICS & LINGUISTICS

There are others very nice software for Win in this site.

It is not necessary that I copy and paste their description, so I give you the link page directly:

http://www.phon.ucl.ac.uk/resource/software.html

In my opinion very interesting are:

CochSim

ESECTION

ESYNTH

ESYSTEM

RTSPEECH

RTSPECT

SFS - I used it for my images on "...harmonics and FFT"

VTDemo - this is very useful and pleasant