Linear predictive codeword excited speech synthesizer

Details Linear predictive codeword excited speech synthesizer Linear predictive codeword excited speech synthesizer

1990-11-13

1992-08-11

Shaw, Dale M.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 51, G10L 500

Patent

active

051386615

ABSTRACT:
A linear predictive codeword excited speech synthesizer performs a voiced/unvoiced decision to determine the type of excitation to be supplied to a synthesis filter. The synthesizer selects the excitation for voiced speech from a codebook, using an analysis-by-synthesis technique in which the transfer function of a linear predictive coefficient synthesis filter closely resembles the gross spectral shape of the input speech signal. By pitch-periodic repetition of the selected codebook vector, a high quality synthetic speech output is generated.

REFERENCES:
patent: 4797926 (1989-01-01), Bronson et al.
patent: 4827517 (1989-05-01), Atal et al.
patent: 4868867 (1989-09-01), Davidson et al.
patent: 4873724 (1989-10-01), Satoh et al.
patent: 4980916 (1990-12-01), Zinser
patent: 5060269 (1991-10-01), Zinser
patent: 5067158 (1991-11-01), Arjmand
patent: 5073940 (1991-12-01), Zinser et al.
Markel et al., "A linear Prediction Vocoder Simulation Based Upon the Autocorrelation Method", IEEE Trans. on Acoustics, Speech, and Signal Processing, vol. ASSP-22, No. 2, Apr. 1974, pp. 124-134.
Schroeder et al., "Stochastic Coding of Speech Signals at Very Low Bit Rates", Proc of 1984 IEEE Int. Conf. on Communications, May 1984, pp. 1610-1613.
Schroeder et al., "High-Quality Speech at Very Low Bit Rates", Proc. of 1985 IEEE Int. Conf. on Acoustics, Speech and Signal Processing, Mar. 1985, pp. 937-940.
Atal et al., "A New Model of LPC Excitation for Producing Natural Sounding Speech at Low Bit Rates", Proc. of 1982 IEEE Int. Conf. on Acoustics, Speech and Signal Processing, May 1982, pp. 614-617.

Affiliated with

Also associated with

Rating

Linear predictive codeword excited speech synthesizer 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 predictive codeword excited speech synthesizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear predictive codeword excited speech synthesizer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-352980