Time-scale modification of signals

Details Time-scale modification of signals Time-scale modification of signals

2002-04-02

2008-08-12

Vo, Huyen X. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S210000, C704S215000, C704S208000

Reexamination Certificate

active

07412379

ABSTRACT:
Techniques utilising Time Scale Modification (TSM) of signals are described. The signal is analysed and divided into frames of similar signal types. Techniques specific to the signal type are then applied to the frames thereby optimising the modification process. The method of the present invention enables TSM of different audio signal parts to be realized using different methods, and a system for effecting said method is also described.

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D. J. Jones, S.D. Watson, K.G. Evans, B.M.G. Cheetham, and R.A. Reeves, “A Network Speech Echo Canceller with Comfort Noise” ESCA. Eurospeech97, Rhodes, Greece. ISSN 1018-4074, pp. 2607-2610.

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