Method and apparatus for generating and encoding line spectral s

Details Method and apparatus for generating and encoding line spectral s Method and apparatus for generating and encoding line spectral s

1995-08-01

1998-05-19

MacDonald, Allen R.

395 22, 395 225, 395 226, 395 227, G10L 302

Patent

active

057547335

ABSTRACT:
A novel and improved method and apparatus for encoding line predictive coding (LPC) data in a speech compression system using line spectral square root values is disclosed. A novel and computationally efficient procedure for determining the set of quantization sensitivities for the line spectral square root values is disclosed, which results in a computationally efficient error measure for use in vector quantization of the line spectral square root values. A novel method of weighting the quantization error is disclosed, which accumulates the quantization error in each line spectral square root value and weights that error by the sensitivity of that line spectral square root value.

REFERENCES:
patent: 4975956 (1990-12-01), Liu et al.
patent: 5012518 (1991-04-01), Liu et al.
patent: 5414796 (1995-05-01), Jacobs et al.
Huang Zailu, "An 800 bit/s LSP Vocoder-With ANN Vector Quantizer", Electro International Conference Record, vol. 18, Jan. 1993, pp. 41-44.
Frank K. Soong et al., "Line Spectrum Pair (LSP) and Speech Data Compression", International Conference on Acoustics, Speech and Signal Processing 84, vol. 1, Mar. 19, 1984, pp. 1.10.1-1-10.4.
Philippe Delsarte et al., "Split Levinson Algorithm", IEEE Transactions on Acoustic, Speech and Signal Processing, vol .ASSP-34, No. 3, Jun. 1986, pp. 470-478.
"Optimal Quantization of LSP Parameters", Soong et al, ICASSP 1988.
"Line Spectrum Pairs--a review", Smith et al, COMSIG 1988, South African Conference on communications and Signal Processing.
"A Two-Level Method Using a Decimation-In-Degree Algorigthm for the Computation of the LSP Frequencies", Chen et al, 0-7803-2440-4, 1994.
"Computation of LSP Parameters from reflection coefficients", chan et al, Electronic Letters, vol. 27, Issue 19, Sep. 12,1991.
"An initrinsically reliable and fast algorithm to compute th LSP in low bit rate CELP coding", Goalic et al, ICASSP 1995, vol. 1.
"Enhanced Distance Measure for LSP-Based Speech Recognition", Kim et al, Electronic Letters, vol. 29, Issue 16, Aug. 5, 1993.
"Quantizer design in LSP speech analysis and synthesis", Sugamura et al, ICASSP '88, 1988.
"Efficient Encoding of Speech LSP Parameters using the Discrete Cosine Transformation", ICASSP, 1989.
"Comprehensice improvement in low bit rate speech coding", GLOBECOM 1989: IEEE Global Telecom Conference, 1989.
"A study of line spectrum pair frequencies fpr speech recognition", ICASSP, 1988.

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