Signal encoding and decoding system using auditory parameters an

Details Signal encoding and decoding system using auditory parameters an Signal encoding and decoding system using auditory parameters an

1997-10-09

1999-01-26

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704211, G01L 300

Patent

active

058647945

ABSTRACT:
A signal encoding system A1 includes a bark spectrum calculating device 2 for calculating a bark spectrum as a parameter based on an auditory model, a bark spectrum encoding device 3 for encoding the bark spectrum, a sound source calculating device 4 and a sound source encoding device 5. The bark spectrum calculating device 2 includes a power spectrum calculating device 6, a critical band integrating device 7, an equal loudness compensating device 8 and a loudness converting device 9. These devices are formed by engineering the functions and effects which are similar to those of the auditory model. The decoding process perform the conversion in the opposite direction. As a result, the signals can be encoded and decoded through less calculation in a manner well matching the human auditory characteristics. When speech signals are to be encoded, it can be realized through less calculation and memory while suppressing noise components other than the speech signal.

REFERENCES:
patent: 5040217 (1991-08-01), Brandenburg et al.
patent: 5142584 (1992-08-01), Ozawa
patent: 5185800 (1993-02-01), Mahieux
patent: 5204677 (1993-04-01), Akagiri et al.
patent: 5311561 (1994-05-01), Akagiri
patent: 5450522 (1995-09-01), Hermansky et al.
patent: 5535300 (1996-07-01), Hall, II et al.
patent: 5537647 (1996-07-01), Hermansky et al.
Wang et al., "Auditory Distortion Measure for Speech Coding," ICASSP '91, 493-96, 1991.
Deller, Jr. et al., "Discrete-Time Processing of Speech Signals," Prentice Hall, Upper Saddle River, NJ, 480-81, 506-16, 1987.
ICASSP 91 Speech Processing "Auditory Distortion Measure For Speeach Coding" S. Wang, et al.
IEEE Transactions on Acoustics, Speech, and Signal Processing "Suppression of Acoustic Noise in Speech Using Spectral Subtraction" Steven F. Boll.

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