Binaural bark subband preprocessing of nonstationary signals for noise robust speech feature extraction

被引：0
|
作者：
Peters, M [1 ]
机构：
[1] BMW AG, Ctr Res & Dev, D-80788 Munich, Germany
来源：
PROCEEDINGS OF THE IEEE-SP INTERNATIONAL SYMPOSIUM ON TIME-FREQUENCY AND TIME-SCALE ANALYSIS | 1998年
关键词：
D O I：
10.1109/TFSA.1998.721498
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A two channel approach to noise robust feature extraction for speech recognition in the car is proposed. The coherence function within the Bark subbands of the Mel-Frequency-Cepstral-Transform is calculated to estimate the spectral similarity of two statistic processes. It is illustrated how the coherence of speech in binaural signals is used to increase the robustness against incoherent noise. The introduced preprocessing method of nonstationary signals in two microphones results in an additive correction term of the Mel-Frequency-Cepstral-Coefficients.
引用
收藏
页码：609 / 612
页数：4
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