Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1991-09-12
1993-04-13
Kemeny, Emanuel S.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
381 31, G10L 500
Patent
active
052029263
ABSTRACT:
To improve the accuracy of phoneme discrimination, a first phoneme discrimination method composes analyzing, not only static information on a voice but also dynamic information on the voice, power variations of the voice as a power-change pattern (PCP) and spectrum parameter variations of the voice as a time spectrum parameter pattern (TSP). After rough clustering based on the PCP, detailed classification is conducted using the TSP so that the voice is hierarchically discriminated to obtain phoneme symbols. This invention also provides a second phoneme discrimination method. To improve the accuracy of phoneme discrimination by a recognition system for unspecified, independent speakers, plural spectrum parameter codebooks classified in advance depending on voice qualities are provided. After rough clustering based on the PCP, the inputted voice is subjected to detailed discrimination with reference to plural codebooks corresponding to the PCP and also to voice quality determination, thereby obtaining phoneme symbols.
REFERENCES:
patent: 4741036 (1988-04-01), Bahl et al.
patent: 4833712 (1989-05-01), Bahl et al.
patent: 4991216 (1991-02-01), Fujii et al.
patent: 5012518 (1991-04-01), Liu et al.
patent: 5033087 (1991-07-01), Bahl et al.
"Multi-Level Clustering of Acoustic Features for Phoneme Recognition Based on Mutual Information," by Katsuhiko Shirai, Noriyuki Aoki and Naoki Hosaka, 1989 IEEE, pp. 604-607.
Kemeny Emanuel S.
Manzo Edward D.
OKI Electric Industry Co., Ltd.
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