A robust pitch estimation method and device for telephone...

Details A robust pitch estimation method and device for telephone... A robust pitch estimation method and device for telephone...

G - Physics

10

L

G10L 11/04 (2006.01) G10L 9/00 (1995.01)

Patent

CA 2162407

The present invention provides a pitch estimating method and device for accurately estimating the pitch of digitized speech signals, in spite of the presence of contaminants and distortions in telephone speech signals by (1) determining a set of pitch candidates to estimate a pitch of the digitized speech signal at each of a plurality of time instants, wherein series of these time instants define segments of the digitized speech signal; (2) constructing a pitch contour using a pitch candidate selected from each of the sets of pitch candidates determined in the first step; and (3) selecting a representative pitch estimate for the digitized speech signal segment from the set of pitch candidates comprising the pitch contour.

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