SPEECH ANALYZING STAGE AND METHOD FOR ANALYZING A SPEECH SIGNAL
摘要
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 x flowest) and a second spectral analyzer (18b) for analyzing the speech signal at least above the first frequency (flowest).
申请公布号
WO02059873(A1)
申请公布日期
2002.08.01
申请号
WO2002EP00393
申请日期
2002.01.16
申请人
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL);HELLWIG, KARL;HIRSCH, HANS-GUENTER;KLISCH, RAINER;SPRINGER, VOLKER