System and method for combined frequency-domain and...

Details System and method for combined frequency-domain and... System and method for combined frequency-domain and...

2006-01-17

2006-01-17

Dorvil, Richemond (Department: 2654)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S207000

Reexamination Certificate

active

06988064

ABSTRACT:
A system, computer readable medium, and method for sampling a speech signal; dividing the sampled speech signal into overlapped frames; extracting first pitch information from a frame using frequency domain analysis; providing at least one pitch candidate, each being associated with a spectral score, from the first pitch information, each of the at least one pitch candidate representing a possible pitch estimate for the frame; extracting second pitch information from the frame using a time domain analysis; providing a correlation score for the at least one pitch candidate from the second pitch information; and selecting one of the at least one pitch candidate to represent the pitch estimate of the frame. The system, computer readable medium, and method are suitable for speech coding and for distributed speech recognition.

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McGonegal, Carol A., Lawrence R. Rabiner, and Aaron E. Rosenberg, “A Semiautomatic Pitch Detector (SAPD),” IEEE Trans. Acoust., Speech, and Sig. Proc., ASSP-23/6, Dec., 1975, pp. 570-574.

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