Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1983-01-24
1986-11-18
Chan, Eddie P.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
381 41, 3645135, G10L 500
Patent
active
046240101
ABSTRACT:
A speech recognition apparatus includes a speech signal analyzing circuit for time-sequentially generating acoustic parameter patterns representing the phonetic features of speech signals, and phoneme reference memories each storing a plurality of reference parameter pattern vectors. A phoneme pattern vector from the speech signal analyzing circuit is compared with each of the reference pattern vectors stored in the phoneme reference memories in order to recognize an input speech. The speech signal analyzing circuit has a parameter extraction circuit for time-sequentially extracting acoustic parameter patterns representing the speech signal, a first phoneme pattern vector memory for storing a phoneme pattern vector including an acoustic parameter pattern of each frame from the parameter extraction circuit, and a second phoneme pattern vector memory for storing a phoneme pattern vector including a plurality of parameter patterns from the parameter extraction circuit.
REFERENCES:
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System, Computers, Controls, vol. 9, No. 3, May-Jun. 1978, Nakagawa et al., "A Real-Time Spoken Word Recognition System with Various Learning Capabilities of Speaker Differences".
Speech Analysis Synthesis and Perception, Second Edition, J. L. Flanagan, Jan. 1972, pp. 174-179, Springer-Verlag.
Electronics and Communications in Japan, vol. 46, No. 11, Nov. 1963, Sakai, "Electronics and Communications in Japan".
The Journal of the Acoustical Society of America, vol. 34, No. 1, Jan. 1962, P. N. Sholtz et al.: "Spoken Digit Recognition Using Vocal-Consonant Segmentation".
Proceedings of the National Electronics Conference, vol. 34, 1980, Jelinek, "Statistical Methods in Automatic Speech Recognition", Reddy, Knowledge Engineering in Speech Understanding Systems.
Chan Eddie P.
Salotto John J.
Tokyo Shibaura Denki Kabushiki Kaisha
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