Voice recognition device using linear predictive coding

Details Voice recognition device using linear predictive coding Voice recognition device using linear predictive coding

1995-12-15

1998-03-24

MacDonald, Allen R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

704255, 704250, 704236, G01L 300

Patent

active

057323933

ABSTRACT:
A sound processor (12) calculates first through third parameters according to an LPC cepstrum, a primary delta cepstrum and a secondary delta cepstrum. The first parameter catches a static characteristic, the second parameter catches a dynamic characteristic with time, and the third parameter catches a locally dynamic characteristic with time. A word dictionary (14) stores first through third parameters for a standard pattern. Hence, a DP matching unit (16) recognizes a voice based on a distance between an input voice of the three parameters and the standard pattern.

REFERENCES:
patent: 5522012 (1996-05-01), Mammone et al.

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