Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1989-03-27
1991-01-15
Shaw, Dale M.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
G10L 702
Patent
active
049859234
ABSTRACT:
A voice coding system for separating and coding voice information into spectrum envelope information and voice source information, with the intention of compressing the amount of information for efficient coding of vocal audio signals through the control of the voice source information based on the fact that the spectrum envelope information and voice source information highly correlate with each other.
REFERENCES:
patent: 4712243 (1987-12-01), Ninomiya et al.
Gersho et al., "Vector Quantization: A Pattern-Matching Technique for Speech Coding", IEEE Comm. Mag., 12/83, pp. 15-21.
Oyama, "A Stochastic Model . . . Speech Analysis-Synthesis.", IEEE ICASSP-85, 25.2.1-25.2.4.
Roucos et al., "Segment Quantization for Very-Low-Rate Speech Coding", IEEE ICASSP 82, pp. 1565-1568.
Ichikawa et al., "A Speech Coding Method Using Thinned-Out Residual, "IEEE ICASSP-85, pp. 25.7.1-25.7.4.
Atal et al., "A New Model of LPC Excitation for Producing Natural-Sounding Speech at Low Bit Rates," IEEE ICASSP 82, pp. 614-617.
Rebolledo et al., "A Multirate Voice Digitizer Based Upon Vector Quantization", IEEE Trans. on Communications, vol. COM-30, No. 4, 4/82, pp. 721-727.
Gray, "Vector Quantization", IEEE ASSP Magazine, vol. 1, No. 2, 4/84, pp. 4-29.
Abut et al., "Vector Quantization of Speech and Speech-Like Waveforms", IEEE Trans. ASSP, vol. ASSP-30, No. 3, 6/82, pp. 423-435.
Wong, "An 800 Bit/s Vector Quantization LPC Vocoder", IEEE Trans. ASSP, vol. ASSP-30, No. 5, 10/82, pp. 770-780.
Cooperi et al., "Jector Quantization and Perceptual Criteria for Low-Rate Coding of Speech", ICASSP 85, 3/85, pp. 7.6.1-7.6.4.
Asakawa Yoshiaki
Ichikawa Akira
Komatsu Akio
Oohira Eiji
Hitachi , Ltd.
Merecki John A.
Shaw Dale M.
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