How to record CVSA example patterns ?

[Darius]

Hi,

I would welcome your advice on how to record some voice example patterns for home-made Computer Voice Stress Analysis.
There are a number of voice example patterns on the net like those at:
http://campus.umr.edu/police/cvsa/example.htm
http://campus.umr.edu/police/cvsa/news78.htm
http://campus.umr.edu/police/cvsa/news82a.htm
http://campus.umr.edu/police/cvsa/family.htm
http://campus.umr.edu/police/cvsa/news28.htm
and others.

Tried to record some my voice samples to get patterns for yes/no using Spectrogram, but it doesn't seem to be a right tool.
As I see, some CVSA patterns are still mechanically recorded on a paper.

Can you help me naming the right voice analysis/recording analysis program, free one for download would be welcome ?

greetings,
Darius