Method and apparatus for speech reconstruction within a...

Details Method and apparatus for speech reconstruction within a... Method and apparatus for speech reconstruction within a...

2006-04-11

2006-04-11

Chawan, Vijay (Department: 2654)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S256000, C704S243000, C704S234000, C706S014000

Reexamination Certificate

active

07027979

ABSTRACT:
A method and apparatus for speech reconstruction within a distributed speech recognition system is provided herein. Missing MFCCs are reconstructed and utilized to generate speech. Particularly, partial recovery of the missing MFCCs is achieved by exploiting the dependence of the missing MFCCs on the transmitted pitch period P as well as on the transmitted MFCCs. Harmonic magnitudes are then obtained from the transmitted and reconstructed MFCCs, and the speech is reconstructed utilizing these harmonic magnitudes.

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Chazan et al., (“Speech reconstruction from mel frequency cepstral coefficients and pitch frequency”, Proceedings'00, 2000 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2000, vol. 3, pp. 1299-1302).
Kang et al., (“A phase generation method for speech reconstruction from spectral envelope and pitch intervals”, Proceedings'0 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2002, vol. 1, pp. 429-432).

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