Method and apparatus for diphone aliasing

Details Method and apparatus for diphone aliasing Method and apparatus for diphone aliasing

1996-07-03

2000-09-19

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Synthesis

704260, 704261, 704266, 704279, G10L 1304

Patent

active

061226165

ABSTRACT:
The present invention improves upon electronic speech synthesis using pre-recorded segments of speech to fill in for other missing segments of speech. The formalized aliasing approach of the present invention overcomes the ad hoc aliasing approach of the prior art which oftentimes generated less than satisfactory speech synthesis sound output. By formalizing the relationship between missing speech sound samples and available speech sound samples, the present invention provides a structured approach to aliasing which results in improved synthetic speech sound quality. Further, the formalized aliasing approach of the present invention can be used to lessen storage requirements for speech sound samples by only storing as many sound samples as memory capacity can support.

REFERENCES:
patent: 4692941 (1987-09-01), Jacks et al.
patent: 4833718 (1989-05-01), Sprague
patent: 4852168 (1989-07-01), Sprague
patent: 4862504 (1989-08-01), Nomura
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patent: 5384893 (1995-01-01), Hutchins
patent: 5876396 (1999-03-01), Henton
J.R. Deller, "discrete-Time processing of Speech Signals," 1987, pp. 115-137.
T. Parsons, "Voice and Speech Processing," 1987, pp. 92-96.
L.R. Rabiner, "digital Processing of Speech Signals," 1978, pp. 42-43.

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