Clipped speech-linear predictive coding speech processor

Details Clipped speech-linear predictive coding speech processor Clipped speech-linear predictive coding speech processor

1981-12-11

1984-10-16

Kemeny, E. S. Matt

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

3645135, G10L 100

Patent

active

044779259

ABSTRACT:
The present invention relates to a speech recognition system and the method therefor, which analyzes a sampled clipped speech signal for identifying a spoken utterance. An input signal representative of the spoken utterance is passed through a clipper to generate a clipped input signal. A sampler generates a plurality of discrete binary values, each discrete binary value corresponding to a sample value of the clipped input signal. A processor then analyzes the plurality of sample values thereby identifying the spoken utterance. Analysis includes determining linear prediction coefficients of the autocorrelation function of speech utterences.

REFERENCES:
patent: 3071652 (1963-01-01), Schroeder
patent: 3278685 (1966-10-01), Harper
patent: 3416080 (1968-12-01), Wright et al.
patent: 3742146 (1973-06-01), Newman et al.
patent: 3816722 (1974-06-01), Sakoe et al.
patent: 4015088 (1977-03-01), Dubnowski et al.
Hellwarth et al., "Automatic Conditioning of Speech Signals", IEEE Trans. on Audio etc., Jun. 1968, pp. 169-179.

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