Method and apparatus for processing speech

Details Method and apparatus for processing speech Method and apparatus for processing speech

1995-05-18

1998-02-03

Tung, Kee M.

395 209, 395 212, G10L 302

Patent

active

057153639

ABSTRACT:
The speech processing apparatus and method includes a microphone, an analyzer, a selector, and a memory. The microphone converts input speech into an electrical signal representing speech data. The analyzer converts the speech data into non-linear frequency converted speech data in accordance with a non-linear frequency conversion. The selector selects a coefficient of the non-linear frequency conversion suitable for each of the phonemes or frames of the speech. The memory stores the speech data.

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Oppenheim et al., "Computation P Spectra with Unequal Resolution Using the Fast Fourier Transform," Poc. of the IEEE, Feb. 1971, pp. 342-343 (from original pp. 299-301).
Flanagan, "Speech Analysis Synthesis and Perception, Second Edition", New York 1972, Springer-Verlag, pp. 184-185.
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"Cepstral Analysis Synthesis on the Mel Frequency Scale", International Conference on Acoustics Speech and Signal Processing, vol. 1, Apr. 14, 1983, Boston, Massachusetts, pp. 93-96.
"Vector Quantization of Speech Signals Using Principal Component Analysis", Electronics and Communications in Japan, vol. 70, No. 5, May, 1, 1987 New York US, pp. 16-25.

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