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Improved ITD Estimation in Reverberant Environments

In this paper, we present an improved model for Interaural Time Difference (ITD) estimation in reverberant environments. The Phase Transform (PHAT) weighting function, used in generalized cross correlation is investigated here for application to Interaural Cross Correlation (IACC) measurements from binaural microphones. A binaural model is developed to accommodate the method and demonstrations of its implementation in a real reverberant room show improved ITD estimation over non-weighted IACC, when compared to subjective listening results.

Authors: Boland, Frank; Kearney, Gavin; Kelly, Damien
Affiliation: Trinity College, Dublin, Ireland
AES Conference:40th International Conference: Spatial Audio: Sense the Sound of Space (October 2010)
Paper Number:P-1 Import into BibTeX
Subject:Spatial Audio

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