Patent
1995-05-24
1996-11-19
MacDonald, Allen R.
395 214, 395 216, 395 22, G10L 302, G10L 900
Patent
active
055771599
ABSTRACT:
A new method for high quality speech coding, Timing-Frequency Interpolation (TFI) which offers advantages over conventional CELP (code-excited linear predictive) algorithms for low rate coding. The method, provides a perceptually advantageous framework for voiced speech processing. The general formulation of the TFI technique is described.
REFERENCES:
patent: 4860355 (1989-08-01), Copperi
patent: 4910781 (1990-03-01), Ketchum et al.
patent: 4937873 (1990-06-01), McAulay et al.
patent: 4975955 (1990-12-01), Taguchi
patent: 4991215 (1991-02-01), Taguchi
patent: 5048088 (1991-09-01), Taguchi
patent: 5127053 (1992-06-01), Koch
patent: 5138661 (1992-08-01), Zinser et al.
patent: 5140638 (1992-08-01), Moulsley et al.
patent: 5305332 (1994-04-01), Ozawa
Transient Analysis of Speech Signals Using Wigner Time Frequency Representation ICASSP-89: 1989 International Conference on Acoustics, Speech and Signal Processing, Velez et al. May 1989 vol. 4.
W. B. Kleijn and W. Granzow "Methods for Waveform Interpolation in Speech Coding," Digital Signal Processing 1, 215-230 (1991).
W. B. Kleijn "Continuous Representations in Linear Predictive Coding," Proc. IEEE ICASSP'91, vol. S1, 201-204 (May 1991).
L. R. Rabiner and R. W. Schafer "Digital Processing of Speech Signals," Prentice-Hall Inc., 38-42 (1978).
P. Kroon and E. F. Deprettere "A Class of Analysis-by-Synthesis Predictive Coders for High Quality Speech Coding at Rates Between 4.8 and 16 kbits/s," IEEE Journal on Selected Areas in Communications, vol. 6, No. 2, 353-363 (Feb. 1988).
M. R. Schroeder and B. S. Atal "Code-Excited Linear Prediction (CELP): High-Quality Speech at Very Low Bit Rates," Proc. IEEE ICASSP'85, vol. 3, 937-940 (Mar. 1985).
AT&T Corp.
Dorvil Richemond
MacDonald Allen R.
Olson Katharyn E.
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