tkSnack pitch() for frequency estimation

From: Justin Shaw (wyojustin_at_hotmail.com)
Date: 01/31/05 

Date: Sun, 30 Jan 2005 21:41:53 -0500

I am using the tkSnack library to estimate the frequency from a sound file.
The pitch seems to drop down an octave at 400 Hertz. For example A~440
Hertz comes out at 220 Hertz. When I use the maxpitch and minpitch options
to limit the response to say 380 - 460 the result is all zeros.

Any ideas on how I can estimate the pitch of a sound up to 880 Hertz (with
tkSnack or not)?

Thanks
Justin Shaw

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