G - Physics – 10 – L
Patent
G - Physics
10
L
354/47
G10L 19/08 (2006.01) G10L 19/12 (2006.01)
Patent
CA 2026640
An impulse sequence of a pitch frequency is detected from a phase-equalized prediction residual of an input speech signal, and a quasi-periodic impulse sequence is obtained by processing the impulse sequence so that a fluctuation in its pitch frequency is within an allowed limit range. The magnitudes of the quasi- periodic impulse sequence are so determined as to minimize an error between the waveform of a synthesized speech obtainable by exciting an all-pole filter with the quasi-periodic impulse sequence and the waveform of a phase-equalized speech obtainable by applying the input speech signal to a phase equalizing filter. Preferably, the quasi-periodic impulse sequence is supplied to the all-pole filter after being applied to a zero filter in which it is given features of the prediction residual of the speech. Coefficients of the zero filter are also determined so that the error of the waveforms of the synthesized speech and the phase-equalized speech is minimum.
Honda Masaaki
Kirby Eades Gale Baker
Nippon Telegraph & Telephone Corporation
LandOfFree
Speech analysis-synthesis method and apparatus therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Speech analysis-synthesis method and apparatus therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speech analysis-synthesis method and apparatus therefor will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1982027