Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Patent
1999-12-30
2000-12-26
Hudspeth, David R.
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
704216, 704217, 704218, 704262, G10L 1904, G10L 1100, G10L 1302
Patent
active
061673730
ABSTRACT:
A sample speech is analyzed by a speech analyzing unit to obtain sample characteristic parameters, and a coding distortion is calculated from the sample characteristic parameters in each of a plurality of coding modules. The sample characteristic parameters and the coding distortions are statistically processed by a statistical processing unit to obtain a coding module selecting rule. Thereafter, when a speech is analyzed by the speech analyzing unit to obtain characteristic parameters, an appropriate coding module is selected by a coding module selecting unit from the coding modules according to the coding module selecting rule on condition that a coding distortion for the characteristic parameters is minimized in the appropriate coding module. Thereafter, the characteristic parameters of the speech are coded in the appropriate coding module, and a coded speech is obtained. When the coded speech is decoded, a reproduced speech is obtained. Accordingly, because an appropriate coding module can be easily selected from a plurality of coding modules according to the coding module selecting rule, any allophone occurring in a reproduced speech can be prevented at a low calculation volume.
REFERENCES:
patent: 4720861 (1988-01-01), Bertrand
patent: 5012519 (1991-04-01), Adlersburg et al.
patent: 5091945 (1992-02-01), Kleijn
patent: 5133013 (1992-07-01), Munday
patent: 5179594 (1993-01-01), Yip et al.
patent: 5185800 (1993-02-01), Mahieux
patent: 5255342 (1993-10-01), Nitta
patent: 5265190 (1993-11-01), Yip et al.
patent: 5285522 (1994-02-01), Mueller
patent: 5381513 (1995-01-01), Tsuboka
patent: 5404422 (1995-04-01), Sakamoto et al.
patent: 5457768 (1995-10-01), Tsuboi et al.
patent: 5479563 (1995-12-01), Yamaguchi
patent: 5528728 (1996-06-01), Matsuura et al.
patent: 5566270 (1996-10-01), Albesano et al.
patent: 5717823 (1998-02-01), Kleijn
patent: 5752223 (1998-05-01), Aoyagi et al.
patent: 5774846 (1998-06-01), Morii
patent: 5819213 (1998-10-01), Oshikiri et al.
Indrayanto A . et al., "A Neural Network Mapper for Stochastic Code Book Parameter Encoding in Code-Excited Linear Predictive Speech Processing", Processings of the Western Canada Conference on Computer, Power and Communications Systems in a Rural Environment. (WESCANEX), Pegina; May 29-30, 1991.
"2-Q-23 Variable Bit-rate Speech Coding Based on PSI-CELP" by H. Ohmuro et al.; Japanese Acoustic Society Papers; pp. 309-120 (w/partial English translation).
The Autocorrelation Method by L.R. Labiner et al; Digital Processing of Speech Signals; pp., 401-403.
"Code-Excited Linear Prediction (CELP): High-Quality Speech at Very Low Bit Rates" by M.R. Schroeder et al; 1985 IEEE; pp., 937-940.
"An Algorithm for Vector Quantizer Design" by Y. Linde et al; IEEE Transactions on Communications, vol. COM-28, No. 1, Jan., 1980; pp., 84-94.
Easton M.G. et al: "A CELP Codebook and Search Technique Using a Hopfield Net", Speech Processing 1, Toronto; May 14-17, 1991; vol. 1, May 14, 1991, Institute of Electrical and Electronics Engineers, pp. 658-188 vol. 2 or 5, Apr. 27, 1993.
Institute of Electrical and Electronics Engineers, pp. 685-188, XP000245321.
Hernandez-Gomez, L.A. et al.: "Phnoetically-Driven CELP Coding Using Self-Organizing Maps", Speech Processing, Minneapolis, Apr. 27-30, 1993; vol. 2 or 5 , Apr. 27, 1993, Institute of Electrical and Electronics Engineers, pp. II-628-II-631, XP000427868.
McElroy et al., ("Wideband Speech Coding using multiple codebooks and glottal pulses", ICASSP-95, May 1995, vol. 1, pp. 253-256).
Woodard et al. ("Improvements to the Analysis-by-Synthesis loop in CELPcodecs", Sixth International Conference on Radio receivers and Associated Systems, Sep. 1995, pp. 114-115).
Zhang et al., ("A CELP variable rate speech codec with low average rate", ICASSP-97, Apr. 1997. vol. 2, pp. 735-738).
Boll, S.F.: "Supperssicon of Acoustic Noise in Speech Using Spectral Subtraction", IEEE Transactions on Acoustics, Speech and Signal Processing, vol. 27, No. 2, Apr. 1, 1979, pp. 113-120, XP000560457.
Chawan Vijay B
Hudspeth David R.
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Linear prediction coefficient analyzing apparatus for the auto-c does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Linear prediction coefficient analyzing apparatus for the auto-c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear prediction coefficient analyzing apparatus for the auto-c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1005708