Noise estimation system for use in speech analysis

Details Noise estimation system for use in speech analysis Noise estimation system for use in speech analysis

1977-10-05

1980-08-26

Morrison, Malcolm A.

G10L 100

Patent

active

042196957

ABSTRACT:
Apparatus, and a related method, for use with a speech analysis system, which derives coefficient parameters by linear prediction and utilizes an intermediate correlation technique that produces a set of auto-correlation coefficients. The apparatus includes an estimate register, circuitry for comparing the contents of the estimate register with a first auto-correlation coefficient and setting the estimate register to the value of the first coefficient if the first coefficient is less than or equal to the estimate register contents, and circuitry for incrementing the contents of the estimate register if the first coefficient is greater than the estimate register contents.

REFERENCES:
patent: 4015088 (1977-03-01), Dubnowski et al.
patent: 4074069 (1978-02-01), Tokura et al.

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