Efficient pitch estimation method

Details Efficient pitch estimation method Efficient pitch estimation method

1997-06-19

1999-08-31

Dorvi, Richemond

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704209, G10L 904

Patent

active

059466502

ABSTRACT:
A method and means to estimate the pitch of a speech or acoustic signal within a vocoder begins with the center clipping and low-pass filtering of the speech or acoustic signal to eliminate the formants from the speech or acoustic signal. An error function for each pitch is calculated for each pitch within the speech or acoustic signal. A fast tracking method is used to select the estimated pitch for the pitch or acoustic signal. A final check for the doubling of the pitch will minimize any incorrect estimation of the pitch.

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