Pitch control in artificial speech

Details Pitch control in artificial speech Pitch control in artificial speech

1990-08-13

1992-11-10

MacDonald, Allen R.

G10L 900

Patent

active

051631105

ABSTRACT:
Substantial pitch variations in artificial speech produced by dialing out a sequence of stored digital waveforms are made possible without significant distortion by varying pitch both by truncation or extension of pitch period waveforms, and by varying the dialout rate. In another aspect of the invention, pitch changes are made more natural by distributing each pitch change evenly over a large number of pitch periods during voiced phonemes.

REFERENCES:
patent: 3892919 (1975-07-01), Ichikawa
patent: 4163120 (1979-07-01), Baumwolspiner
patent: 4624012 (1986-11-01), Lini et al.
patent: 4692941 (1987-09-01), Jacks et al.
patent: 4709390 (1987-11-01), Atal et al.
patent: 4817161 (1989-03-01), Kaneko
patent: 4833718 (1990-05-01), Sprague
patent: 4896359 (1990-01-01), Yamamoto et al.

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