Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1989-03-08
1990-12-04
Harkcom, Gary V.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
381 43, G10L 506
Patent
active
049759590
ABSTRACT:
According to this process, a speech signal is analyzed in a vector quantizer (1) in which the acoustic parameters are calculated for each interval of time of a predetermined value and are compared with each spectral reference template contained in a reference template dictionary (2) utilizing a distance calculation. The sequence obtained at the output of the vector quantizer (1) is then compared with each of the words stored in a word lexicon (5) in a phonetic form utilizing phonetic distribution tables (3) associated with each template. A particular word of the speech to be recognized is then recognized as corresponding to a word stored in the lexicon having the maximum probability of its constituent phonetic units according to the phonetic distribution tables.
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"Interactive Clustering Techniques for Selecting Speaker Independent Reference Templates for Isolated Word Recognition", IEEE Transactions on Acoustics, Speech, and Signual Processing, vol. 27, No. 2, Apr. 1979, Stephen E. Levison et al.
"Nynamic Programming Algorithm Optimization for Spoken Word Recognition", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-26, No. 1, Feb. 1978, Hiroaki Sakoe and Seibi Chiba.
"Application de la Distinction Trait Indice Propriete a la Construction D'un Logiciel Pour la Synthese", Gerard Benbassat and Xavier Delon, Speech Communication 2, pp. 141-144 (Mar. 1983).
Harkcom Gary V.
Hiller William E.
Merrett N. Rhys
Sharp Melvin
Texas Instruments Incorporated
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