Speech analyzing stage and method for analyzing a speech signal

Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission

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C704S201000, C704S222000

Reexamination Certificate

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07062431

ABSTRACT:
A speech analyzing stage (12) and a method for analyzing a speech signal is described. The speech analyzing stage (12) is part of an automatic speech recognition system (10) and is adapted for analyzing in the spectral domain a speech signal sampled at one of at least two different system sampling rates. The speech analyzing stage (12) comprises a first spectral analyzer (18a) for analyzing the speech signal up to a first frequency (flowest) which is preferably derived from the lowest system sampling rate (2×flowest) and a second spectral analyzer (18b) for analyzing the speech signal at least above the first frequency (flowest).

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