Speech recognition system which avoids ambiguity when matching f

Details Speech recognition system which avoids ambiguity when matching f Speech recognition system which avoids ambiguity when matching f

1987-08-11

1989-11-21

Harcom, Gary V.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 43, G10L 708

Patent

active

048827550

ABSTRACT:
In a speech recognition system using normalized spectrum matching, a second feature pattern is calculated and compared with reference patterns. The similarity obtained as a result of the comparison is used to determine overall similarity, from which the recognition is made. The second feature pattern can be a spectrum variation pattern, a level decrease pattern, or a spectrum relative value pattern.

REFERENCES:
patent: 3582559 (1971-06-01), Hitchcock
patent: 4370521 (1983-01-01), Johnston et al.
patent: 4403114 (1983-09-01), Sakoe
patent: 4677673 (1987-06-01), Ukita et al.
patent: 4716593 (1987-12-01), Hirai et al.
Iizuka, "Speaker Independent Telephone Speech Recognition", IEEE, 1985, pp. 842-845.

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