Stochastic modeling of spectral adjustment for high quality...

Details Stochastic modeling of spectral adjustment for high quality... Stochastic modeling of spectral adjustment for high quality...

2005-06-21

2005-06-21

Ometz, David L. (Department: 2655)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S260000, C704S219000, C704S267000

Reexamination Certificate

active

06910007

ABSTRACT:
Natural-sounding synthesized speech is obtained from pieced elemental speech units that have their super-class identities known (e.g. phoneme type), and their line spectral frequencies (LSF) set in accordance with a correlation between the desired fundamental frequency and the LSF vectors that are known for different classes in the super-class. The correlation between a fundamental frequency in a class and the corresponding LSF is obtained by, for example, analyzing the database of recorded speech of a person and, more particularly, by analyzing frames of the speech signal.

REFERENCES:
patent: 5473728 (1995-12-01), Luginbuhl et al.
patent: 5675702 (1997-10-01), Gerson et al.
patent: 5970453 (1999-10-01), Sharman
patent: 6453287 (2002-09-01), Unno et al.
patent: 6470312 (2002-10-01), Suzuki et al.

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