Spectral magnitude representation for multi-band excitation spee

Details Spectral magnitude representation for multi-band excitation spee Spectral magnitude representation for multi-band excitation spee

1995-02-22

1998-05-19

MacDonald, Allen R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704205, 704208, 704223, G01L 702

Patent

active

057549745

ABSTRACT:
A method for encoding a speech signal into digital bits including the steps of dividing the speech signal into speech frames representing time intervals of the speech signal, determining voicing information for frequency bands of the speech frames, and determining spectral magnitudes representative of the magnitudes of the spectrum at determined frequencies across the frequency bands. The method further includes quantizing and encoding the spectral magnitudes and the voicing information. The steps of determining, quantizing and encoding the spectral magnitudes is done is such a manner that the spectral magnitudes independent of voicing information are available for later synthesizing.

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