Quantization of linear prediction coefficients using...

Details Quantization of linear prediction coefficients using... Quantization of linear prediction coefficients using...

2005-05-03

2005-05-03

Dorvil, Richemond (Department: 2654)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S219000

Reexamination Certificate

active

06889185

ABSTRACT:
A new method for quantization of the LPC coefficients in a speech coder includes a new weighted error measure including every frame sampling an impulse response from LPC filter21of said coder, filtering the samples using a perceptual weighting filter39and processing in a computer39to calculate autocorrelation function of the weighted impulse response, computing Jacobian matrix for LSF (Line Spectral Frequency), computing correlation of rows of Jacobian matrix and calculating LSF weights by multiplying correlation matrices.

REFERENCES:
patent: 5307441 (1994-04-01), Tzeng
patent: 5625743 (1997-04-01), Fiocca
patent: 5819212 (1998-10-01), Matsumoto et al.
patent: 5822723 (1998-10-01), Kim et al.
patent: 5909663 (1999-06-01), Iijima et al.
patent: 5924062 (1999-07-01), Maung
patent: 5970444 (1999-10-01), Hayashi et al.
patent: 6012023 (2000-01-01), Iijima et al.
patent: 6026359 (2000-02-01), Yamaguchi et al.
Gardner, W.R et al. “Optimal Distortion Measures for the High Rate Vector Quantization of LPC Parameters”, Int. Conf on Acoustics, Speech, and Signal Proc., 1995, ICASSP-95, vol. 1, p. 752-755.*
Gardner, W.R., Rao, B.D., “Theoretical Analysis of the High-Rate Vector Quantization of LPC Parameters”, IEEE Transactions of Speech and Audio Processing, 1995, vol. 3, No. 5, pp. 367-381.*
Gardner, W.R et al. “Optimal Distortion Measures for the High Rare Vector Quantization of LPC Parameters”, Int. Conf on Acoustics, Speech, and Signal Proc., 1995, ICASSP-95, vol. 1, p. 752-755.*
Ronald P Cohn et al., “Incorporating Perception into LSF Quantization Some Experiments” ICASSP 97, Munich, Germany, Apr. 21-24, 1997, pp. 1347-1350, vol. 2.

Affiliated with

Also associated with

Rating

Quantization of linear prediction coefficients using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Quantization of linear prediction coefficients using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantization of linear prediction coefficients using... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3395735