Method of judging voiced and unvoiced conditions of speech...

Details Method of judging voiced and unvoiced conditions of speech... Method of judging voiced and unvoiced conditions of speech...

G - Physics

10

L

354/50

G10L 11/06 (2006.01)

Patent

CA 1059631

Specification Title of the Invention Method of Judging Voiced and Unvoiced Conditions of Speech Signal Abstract of the Disclosure The voiced and unvoiced conditions of a speech signal are judged by combining a ratio ?(?s)/?(o) between the value ?(o) of the autocorrelation function of the speech signal at a zero delay time, and the value ?(?s) of the autocorrelation function at a delay time ?s of the sampling period with a parameter extracted from the speech signal by a correlation technique and representing the degree of periodicity of the speech signal. By examining the result of the combination whether the speech signal is in a voiced condition or in an unvoiced condition is determined.

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