Method and apparatus for coding of signals containing speech and

Details Method and apparatus for coding of signals containing speech and Method and apparatus for coding of signals containing speech and

1998-06-05

2000-10-31

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704220, 704229, 704226, G10L 2100, G10L 1900

Patent

active

061416398

ABSTRACT:
A signal including speech and background noise is encoded by first decomposing the signal into speech and noise components. A first speech encoding algorithm is then used to generate codebook indices for the speech component and a second algorithm is applied to generate codebook indices for the noise component. The speech encoding algorithm performs better since it faces clean speech, while a simple, very low bit rate algorithm may be used to encode the noise.

REFERENCES:
patent: 5327520 (1994-07-01), Chen
patent: 5451951 (1995-09-01), Elliott et al.
patent: 5596676 (1997-01-01), Swaminathan et al.
patent: 5717724 (1998-02-01), Yamazaki et al.
patent: 5734789 (1998-03-01), Swaminathan et al.
patent: 5774844 (1998-06-01), Akagiri
patent: 5794199 (1998-08-01), Rao et al.
patent: 5930749 (1999-07-01), Maes
patent: 5956674 (1999-09-01), Smyth et al.
Excerpt from "Discrete-Time Processing of Speech Signals," Chapter 8, by John R. Deller, Jr., et al, pp. 506-517, 1993.
"ITU-T Recommendation G.729," by International Telecommunication Union, Mar., 1996.
Variable Bit -Rate CELP Coding of Speech with Phonetic Classification, European Transactions on Telecomunications and Related Technologies, vol. 5 (1994) Sep./Oct., No. 5 Milano, IT.

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