Speech synthesizer

Details Speech synthesizer Speech synthesizer

1992-05-26

1994-11-29

MacDonald, Allen R.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

381 40, G10L 502

Patent

active

053697308

ABSTRACT:
In an overlap addition unit, speech waveform data is subjected to overlap addition every period read out from a period storage unit, and in a simple addition unit, the waveform data obtained by the overlap addition and the aperiodic waveform data read out from an aperiodic waveform storage unit are added to each other. Thus, the aperiodic waveform is given to the speech waveform to improve the quality of synthesized speech.

REFERENCES:
patent: 3872250 (1975-03-01), Coolter
patent: 4058676 (1977-11-01), Wilkes et al.
patent: 4163120 (1979-07-01), Baumwolspiner
Oppenheim, Alan V., "Speech Analysis-Synthesis System Based on Homomorphic Filtering," The Journal of The Acoustic Society of America, vol. 45, No. 2, 1969, pp. 458-465.
Rabiner, L. R., et al. Digital Processing of Speech Signals, Prentice-Hall Signal Processing Series, 1983, Chapter 6, "Shore-Time Fourier Analysis," pp. 250-354, and Chapter 7, Homomorphic Speech Processing, pp. 355-395.
Stuart, Jim. "Speech Synthesis Devices and Development Systems," Electronic Engineering, Jan. 1990, pp. 49 and 52.

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