Method for determining the fundamental frequency of a voice sign

Details Method for determining the fundamental frequency of a voice sign Method for determining the fundamental frequency of a voice sign

1978-03-28

1979-07-17

Claffy, Kathleen H.

G10L 102

Patent

active

041616251

ABSTRACT:
A method of determining the fundamental frequency or pitch period of a voice signal from a difference signal, formed with the aid of predictors, between the original voice signal and the voice signal estimated by the predictor. Only the significant characteristics of the difference signal are then auto-correlated and the maxima of the correlation coefficients determine the fundamental frequency or pitch period.

REFERENCES:
patent: 4015088 (1977-03-01), Dubnowski et al.
M. Sondhi, "New Methods of Pitch Extraction", IEEE Trans. Audio and EA, Jun. 1968, pp. 262-266.
J. Markel, "The SIFT Algorithm", IEEE Trans. on Audio and EA, Dec. 1972, pp. 367-377.

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