TU Dortmund → Department of Computer Science → LS XII → Pattern Recognition Group → Publications → Publication Details
M. H. Hennecke AND G. A. Fink 9. ITG Fachtagung Sprachkommunikation, Bochum, Germany, 2010.
Time delay estimation is a basic building block of an acoustic source localization system. Such a system must cope with adverse acoustic conditions to be generally applicable, i.e. high reverberation times and low signal-to-noise ratios. In general, better results could be achieved if multiple channels are used. We propose an extension of a mutual information based delay estimator to the multichannel case. Additionally, we give a unified description of the proposed estimator, the generalized cross-correlation and its multichannel counterpart. Using real recordings, a comparative performance evaluation shows the robustness of the proposed method.