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http://dx.doi.org/10.7776/ASK.2014.33.1.054

CASA Based Approach to Estimate Acoustic Transfer Function Ratios  

Shin, Minkyu (고려대학교 전자전기전파공학부)
Ko, Hanseok (고려대학교 전자전기전파공학부)
Publication Information
The Journal of the Acoustical Society of Korea / v.33, no.1, 2014 , pp. 54-59 More about this Journal
Abstract
Identification of RTF (Relative Transfer Function) between sensors is essential to multichannel speech enhancement system. In this paper, we present an approach for estimating the relative transfer function of speech signal. This method adapts a CASA (Computational Auditory Scene Analysis) technique to the conventional OM-LSA (Optimally-Modified Log-Spectral Amplitude) based approach. Evaluation of the proposed approach is performed under simulated stationary and nonstationary WGN (White Gaussian Noise). Experimental results confirm advantages of the proposed approach.
Keywords
System identification; Relative transfer function; Multi-microphone speech enhancement;
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