Statistical methods and apparatus for pitch extraction in speech

Details Statistical methods and apparatus for pitch extraction in speech Statistical methods and apparatus for pitch extraction in speech

1997-10-31

2000-03-07

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704217, 704216, G10L 300

Patent

active

06035271&

ABSTRACT:
A method and apparatus for extracting pitch value information from speech. The method selects at least three highest peaks from a normalized autocorrelation function and produces a plurality of frequency candidates for pitch value determination. The plurality of frequency candidates are used to identify anchor points in pitch values, and is further used to perform both forward and backward searching when an anchor point cannot be readily identified. The running mean or average of determined pitch values is maintained and used in conjunction with the identified valid pitch values in a final determination of the pitch estimation using a weighted least squares fit for identified non-valid frames.

REFERENCES:
patent: 3069507 (1962-12-01), David
patent: 4461024 (1984-07-01), Rengger et al.
patent: 4561102 (1985-12-01), Prezas
patent: 4653098 (1987-03-01), Nakata et al.
patent: 5353372 (1994-10-01), Cook et al.
Sadaoki Furui, (Digital Speech Processing, Synthesis, and Recognition), pp. 103-109, Jan. 1989.
Man Mohan Sondhi, IEEE transactions on audio and electroacoustics, vol. AU-16, No. 2, pp. 262-266, Jul. 1968.

Affiliated with

Also associated with

Rating

Statistical methods and apparatus for pitch extraction in speech does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Statistical methods and apparatus for pitch extraction in speech, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Statistical methods and apparatus for pitch extraction in speech will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-372216