Voice intelligibility enhancement system

Details Voice intelligibility enhancement system Voice intelligibility enhancement system

2006-01-31

2006-01-31

Young, W. R. (Department: 2655)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S225000

Reexamination Certificate

active

06993480

ABSTRACT:
Intelligibility of a human voice projected by a loudspeaker in an environment of high ambient noise is enhanced by processing a voice signal in accordance with the frequency response characteristics of the human hearing system. Intelligibility of the human voice is derived largely from the pattern of frequency distribution of voice sounds, such as formants, as perceived by the human hearing system. Intelligibility of speech in a voice signal is enhanced by filtering and expanding the voice signal with a transfer function that approximates an inverse of equal loudness contours for tones in a frontal sound field for humans of average hearing acuity.

REFERENCES:
patent: 3180938 (1965-04-01), Schroeder
patent: 3838217 (1974-09-01), Dreyfus
patent: 4090033 (1978-05-01), Silverstein
patent: 4166926 (1979-09-01), Sieler
patent: 4186280 (1980-01-01), Geiseler
patent: 4275269 (1981-06-01), Sugita et al.
patent: 4287391 (1981-09-01), Queen
patent: 4340779 (1982-07-01), Hashimoto et al.
patent: 4441202 (1984-04-01), Tong et al.
patent: 4506379 (1985-03-01), Komatsu
patent: 4542524 (1985-09-01), Laine
patent: 4618985 (1986-10-01), Pfeiffer
patent: 4622692 (1986-11-01), Cole
patent: 4630304 (1986-12-01), Borth et al.
patent: 4641343 (1987-02-01), Holland et al.
patent: 4661981 (1987-04-01), Henrickson et al.
patent: 4696040 (1987-09-01), Doddington et al.
patent: 4703505 (1987-10-01), Seiler et al.
patent: 4707858 (1987-11-01), Fette
patent: 4743906 (1988-05-01), Fullerton
patent: 4748669 (1988-05-01), Klayman
patent: 4802228 (1989-01-01), Silverstein et al.
patent: 4819269 (1989-04-01), Klayman
patent: 4827516 (1989-05-01), Tsukahara et al.
patent: 4829572 (1989-05-01), Kong
patent: 4836329 (1989-06-01), Klayman
patent: 4841572 (1989-06-01), Klayman
patent: 4852172 (1989-07-01), Taguchi
patent: 4866774 (1989-09-01), Klayman
patent: 4882752 (1989-11-01), Lindman et al.
patent: 4882758 (1989-11-01), Uekawa et al.
patent: 4896360 (1990-01-01), Knight
patent: 4922539 (1990-05-01), Rajasekaran et al.
patent: 4933973 (1990-06-01), Porter
patent: 4945568 (1990-07-01), Willems
patent: 4969192 (1990-11-01), Chen et al.
patent: 4979216 (1990-12-01), Malsheen et al.
patent: 5012519 (1991-04-01), Adlersberg et al.
patent: 5058169 (1991-10-01), Temmer
patent: 5103481 (1992-04-01), Iseda et al.
patent: 5133013 (1992-07-01), Munday
patent: 5148488 (1992-09-01), Chen et al.
patent: 5150413 (1992-09-01), Nakatani et al.
patent: 5175793 (1992-12-01), Sakamoto et al.
patent: 5177329 (1993-01-01), Klayman
patent: 5181251 (1993-01-01), Schultheiss et al.
patent: 5195167 (1993-03-01), Bahl et al.
patent: 5216718 (1993-06-01), Fukuda
patent: 5243656 (1993-09-01), Tanida et al.
patent: 5251260 (1993-10-01), Gates
patent: 5280543 (1994-01-01), Yokoyama et al.
patent: 5319713 (1994-06-01), Waller, Jr. et al.
patent: 5333201 (1994-07-01), Waller, Jr.
patent: 5426719 (1995-06-01), Franks et al.
patent: 5459813 (1995-10-01), Klayman
patent: 5550924 (1996-08-01), Helf et al.
patent: 5638452 (1997-06-01), Waller, Jr.
patent: 5661808 (1997-08-01), Klayman
patent: 5771295 (1998-06-01), Waller, Jr.
patent: 5784468 (1998-07-01), Klayman
patent: 5850453 (1998-12-01), Klayman et al.
patent: 5953697 (1999-09-01), Lin et al.
patent: 674341 (1965-12-01), None
patent: 2555263 (1977-02-01), None
patent: 64-49100 (1989-02-01), None
Coetzee, et al., “An LSP Based Speech Quality Measure”, ICASSP-89, pp. 596-599, vol. 1, May 1989, no day.
Lim, “Enhancement and Bandwidth Compression of Noisy Speech”,Proceedings of the IEEE, vol. 67, No. 12, pp. 1586-1604, Dec. 1979, no day.
Conway, et al., “Evaluation of a Technique Involving Processing With Feature Extraction to Enhance the Intelligibility of Noise-Corrupted Speech”, IECON '90 Conference of IEEE Industrial Electronics Society, vol. 1, pp. 28-33, Nov. 27-30, 1990.
Conway, et al., “Adaptive Postfiltering Applied to Speech in Noise”, Midwest Symposium on Circuits and Systems, pp. 101-104, Aug. 1989, no day.
Clarkson, et al., “Envelope Expansion Methods for Speech Enhancement”,J. Acoust. Soc. Am., vol. 89, No. 3, pp. 1378-1382, Mar. 1991, no day.

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