Method and apparatus for tracking pitch in audio analysis

Details Method and apparatus for tracking pitch in audio analysis Method and apparatus for tracking pitch in audio analysis

2005-07-12

2005-07-12

Mcfadden, Susan (Department: 2655)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S223000, C704S219000

Reexamination Certificate

active

06917912

ABSTRACT:
A computationally efficient and robust pitch detection and tracking system and related methods are presented. According to certain exemplary implementations a method is presented comprising identifying an initial set of pitch period candidates using a first estimation algorithm, filtering the initial set of candidates and passing the filtered candidates through a second, more accurate pitch estimation algorithm to generate a final set of pitch period candidates from which the most likely pitch value is selected.

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