Adaptive pitch detection system for voice signal

Details Adaptive pitch detection system for voice signal Adaptive pitch detection system for voice signal

1980-02-19

1981-08-04

Nusbaum, Mark E.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 77G, G10L 100

Patent

active

042824060

ABSTRACT:
A system for detecting the pitch of a voice signal, in which a plurality of pitch searching periods are determined so that pitch components of multiple relationship are not included in each of the pitch searching periods, and in which after detecting a pitch searching period including the pitch from the pitch searching periods, the pitch searching periods are adaptively shifted in a mannger to follow the change direction of the pitch predicted from the result of detection of the detected pitch.

REFERENCES:
patent: 3529140 (1970-09-01), Doering
patent: 3740476 (1973-06-01), Atal
patent: 3808370 (1974-04-01), Jackson et al.

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