Noise spectrum subtraction method and system

Details Noise spectrum subtraction method and system Noise spectrum subtraction method and system

2006-12-26

2006-12-26

Chawan, Vijay (Department: 2654)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S219000, C704S205000, C381S094300

Reexamination Certificate

active

07155387

ABSTRACT:
A method for reducing noise in a voice signal, and a voice operated system utilizing the same are presented. A noise component in a compressed digital signal representative of the voice signal is determined, and subtracted from the compressed digital signal.

REFERENCES:
patent: 6003004 (1999-12-01), Hershkovits et al.
Kimura, S., Advances in Speech Recognition Technologies, Dec. 1999, Fujitsu Sci. Tech. J. 35, 2, pp. 202-211.
Zhao et al., Improvement in LPC Analysis of Speech by Noise Compensation, Nov. 1998, Trans. of the IEICE A vol. J81-A, No. 11, pp. 1538-1591 (Translation included).
S.F. Boll, “Suppression of Acoustic Noise in Speech Using Spectral Subtraction”,IEEE Transactions on Acoustics, Speech and Signal Processing, Apr. 1979, p. 113-120, vol. 27, n. 2.
L. Rabiner et al.,Fundamentals of Speech Recognition, 1993, p. 97-121, Prentice Hall, Englewood Cliffs, New Jersey.
A.V. Oppenheim et al.,Digital Signal Processing, 1975, p. 557-559, Prentice Hall, Englewood Cliffs, New Jersey.

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