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Has someone tried Speech Recognition via Zero Crossing Analysis? — Parallax Forums

Has someone tried Speech Recognition via Zero Crossing Analysis?

Christof Eb.Christof Eb. Posts: 1,197
in General Discussion

Hi,
while in search for literature about speech generation, I stumbled over an interesting rather simple method of speech recognition via analysis of Zero Crossings which was used in GDR. There is a claim to have achieved 97 percent recognition in a German description of 1987. The method splits the frequencies of the speech signal into 2 bands less or greater than 1kHz. For each of these bands they measure the frequencies of zero crossings.
http://www.kc85emu.de/scans/rfe1187/sprach.htm
Christof

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