I have 15 audio tapes, one of which I believe contains an old recording of my grandmother and myself talking. A quick attempt to find the right place didn\'t turn it up. I don
I'd start here,
http://alize.univ-avignon.fr/
http://www-lium.univ-lemans.fr/diarization/doku.php/quick_start
codeblocks:: is good for gcc
Try audacity + view track as spectrogram(logf) + train your eyes(!) to recognize speech. You will need to tune time scale and FFT window.