Modified Cross-correlation for Inter-aural Time Delay Estimation

Title
Modified Cross-correlation for Inter-aural Time Delay Estimation
Authors
이병기최종석
Keywords
sound source localization; ITD estimation; cross-correlation; noisy environment
Issue Date
2009-08
Publisher
ICROS-SICE International Joint Conference 2009
Abstract
Most of sound source localizing systems are based on a technique of measuring inter-aural time delays. Cross-correlation, Cross-power spectrum phase, and other techniques have been developed for measuring inter-aural time delays. In this paper, we propose a modified cross-correlation technique in frequency domain. We define a Gaussian indicator and use it as a kernel of the proposed cross-correlation. It seems that the proposed technique is useful in heavy noise conditions. Our simulation shows that its performance is almost close to the original cross-correlation’s in high SNR but better than the original in low SNR.
URI
http://pubs.kist.re.kr/handle/201004/35774
Appears in Collections:
KIST Publication > Conference Paper
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