Gradient descent optimization of linear prediction...

Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C704S220000

Reexamination Certificate

active

10134281

ABSTRACT:
An optimization algorithm is provided for linear prediction based speech coding systems. The optimization algorithm minimizes the error between original speech samples and synthesized speech samples. Optimized linear prediction coefficients are computed directly from a system difference equation without converting the coefficients into the root-domain.

REFERENCES:
patent: 4989170 (1991-01-01), Batruni et al.
patent: 5058047 (1991-10-01), Chung
patent: 5822721 (1998-10-01), Johnson et al.
Manfred R. Schroeder and Bishnu S. Atal, “Code-Excited Linear Prediction (CELP): High-Quality Speech At Very Low Bit Rates,” Mar. 26-29, 1985, pp. 937 through 940.
Alan V. McCree and Thomas P. Barnwell III, “A Mixed Excitation LPC Vocoder Model for Low Bit Rate Speech Coding,” Jul. 1995, pp. 242 through 250.
B.S. Atal and Suzanne L. Hanauer, “Speech Analysis and Synthesis by Linear Prediction of the Speech Wave,” Apr. 1971, pp. 637 through 655.
Bishnu S. Atal and Joel R. Remde, “A New Model of LPC Excitation For Producing Natural-Sounding Speech At Low Bit Rates,” 1982, pp. 614 through 617.
G. Fant, “The Acoustics of Speech,” 1959, pp. 17 through 30.
Yining Chen et al., “A New Algorithm For Parameter Re-optimization in Multi-Pulse Excitation LP Synthesizer”, IEEE Asia-Pacific Conf. On Circuits and Systems, Dec. 4-6, 2000, pp. 560-563.
M. Fratti, et al., “An Approach to Parameter Reoptimization in Multipulse-Based Coders”, IEEE Transactions on Speech and Audio Processing, IEEE Inc. New York, vol. 1, No. 4, (Oct. 1, 1993) pp. 463-465.
James C. Richards, et al., “A Gradient-Based Variable Step-Size LMS Algorithm”, Proceedings of Southeastcon. Williamsburg, Apr. 7-10, 1991, Proceedings of the Southeast Conference, New York, IEEE, US, vol. 1, (Apr. 7, 1991), pp. 1083-1087.
Steven T. Smith, “Linear and Nonlinear Conjugate Gradient Methods For Adaptive Processing”, Proc. IEEE Int. Conf. On Speech and Signal Processing, vol. 3, May 7-10, 1996, pp. 1835-1838.
International Search Report from corresponding EPO Application No. 03 007 987.5, dated Sep. 1, 2003, 2p.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Gradient descent optimization of linear prediction... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-3772828

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.