Voice encoder and voice encoding method

Details Voice encoder and voice encoding method Voice encoder and voice encoding method

2006-01-17

2006-01-17

Abebe, Daniel (Department: 2655)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S220000

Reexamination Certificate

active

06988065

ABSTRACT:
A vector code book (1094) where representative samples of vectors to be quantized are stored is created. Each vector is made up of three elements: an AC gain, a value corresponding the logarithm of an SC gain, and an adjustment coefficient of the prediction coefficient of SC. Coefficients for predictive coding are stored in a prediction coefficient storage section (1095). The coefficients are the prediction coefficients of MA, and two kinds of coefficients, AC and SC for the order of prediction are stored. A parameter calculating section (1091) calculates a parameter necessary for distance calculation from an auditory sensation weighting input voice, an adaptive sound source subjected to auditory weighting LPC synthesis, a probabilistic sound source subjected to auditory sensation weighting LPC synthesis, a decoded vector (AC, SC, adjustment coefficient) stored in a decoded vector storage section (1096), and the prediction coefficients (AC, SC) stored in the prediction coefficient storage section (1095).

REFERENCES:
patent: 5327519 (1994-07-01), Haggvist et al.
patent: 5598504 (1997-01-01), Miyano
patent: 5915234 (1999-06-01), Itoh
patent: 6202045 (2001-03-01), Ojala et al.
patent: 6363341 (2002-03-01), Tolhuizen et al.
patent: 6470309 (2002-10-01), McCree
patent: 6704702 (2004-03-01), Oshikiri et al.
patent: 0883107 (1998-12-01), None
patent: 5-011799 (1993-01-01), None
patent: 9-152897 (1997-06-01), None
patent: 10-232696 (1998-09-01), None
patent: 10232696 (1998-09-01), None
patent: 10233694 (1998-09-01), None
patent: 10282998 (1998-10-01), None
English Language Abstract of JP 10-232696.
English Language Abstract of JP 10-233694.
English Language Abstract of JP 10-282998.
English Language Abstract of JP 9-152897.
“Code-Excited Linear Prediction (CELP): High Quality Speech at Very Low Bit Rates” by M.R. Schroeder et al., Proc. ICASSP 1985.
“Fast CELP coding based on algebraic codes” by J-P. Adoul et al., Proc. IEEE Int. Conf. Acoustics, Speech, Signal Processing, 1987, pp. 1957-1960.
“A comparison of some algebraic structures for CELP coding of speech” by J-P. Adoul et al., Proc. IEEE Int. Conf. Acoustics, Speech, Signal Processing, 1987, pp. 1953-1956.
“Design and Description of CS-ACELP: A Toll Quality 8 kb/s Speech Coder” by Redwan Salami et al., IEEE trans. Speech and Audio Processing, vol. 6, No. 2, Mar. 1998.
English Language Abstract of JP 5-011799. Jan. 22, 1993.

Affiliated with

Also associated with

Rating

Voice encoder and voice encoding method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voice encoder and voice encoding method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voice encoder and voice encoding method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3603064