Continuous speech recognition apparatus

Details Continuous speech recognition apparatus Continuous speech recognition apparatus

1983-12-20

1987-06-30

Kemeny, E. S. Matt

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

3645135, G10L 500

Patent

active

046776729

ABSTRACT:
A continuous speech recognition circuit has a data generating circuit for calculating feature pattern data each having N-frame feature parameter data of a plurality of word-periods and reference pattern data every time one-frame period has elapsed and for sequentially generating a maximal similarity data among the calculated similarity data, and a recognition circuit for detecting a series of continuous word-periods which gives the largest similarity sum within a speech interval in accordance with the similarity data from the data generating circuit and recognizing as effective word data the word series corresponding to the detected series of continuous word-periods. The similarity data in each word period is obtained by calculating partial similarity data between the feature parameter data of each frame and each reference parameter data and using the N partial similarity data obtained during the word-period.

REFERENCES:
patent: 4156868 (1979-05-01), Levinson
patent: 4286115 (1981-08-01), Sakoe
patent: 4479236 (1984-10-01), Sakoe
IEEE Trans. Acoust. Sig. Speech Proc., vol. ASSP-30, No. 4, pp. 561-565; "Speaker Independent Connected Word Recognition Using a Syntax-Directed Dynamic Programming Procedure", Myers and Levinson, 1982.

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