Cepstrum Prefiltering for Binaural Source Localization in Reverberant Environments

Parisi, Raffaele; Flavia, Camoes; Scarpiniti, Michele; Uncini, Aurelio

doi:10.1109/lsp.2011.2180376

Binaural sound source localization can be performed by imitation of the fundamental mechanisms of the human auditory system, which is based on the integrated effects of ear, pinnae, head and torso. In particular, two physical cues can be exploited, i.e. the Interaural Time Difference (ITD) and the Interaural Level Difference (ILD). It is known that joint use of ITD and ILD provides good source azimuth estimations [1]. In many practical situations binaural localization has to be performed in closed environments, where the presence of reverberation degrades the performance of available position estimators. In this paper a possible solution to this difficult problem is introduced. The proposed solution is based on proper use of cepstral prefiltering prior to source localization by ITD and ILD. It is shown that cepstrum can help in reducing the effects of reverberation, thus yielding better location estimates.

Cepstrum Prefiltering for Binaural Source Localization in Reverberant Environments / Parisi, Raffaele; Flavia, Camoes; Scarpiniti, Michele; Uncini, Aurelio. - In: IEEE SIGNAL PROCESSING LETTERS. - ISSN 1070-9908. - 19:2(2012), pp. 99-102. [10.1109/lsp.2011.2180376]

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Titolo:	Cepstrum Prefiltering for Binaural Source Localization in Reverberant Environments
Autori:	PARISI, Raffaele Flavia Camoes SCARPINITI, MICHELE UNCINI, Aurelio mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2012
Rivista:	IEEE SIGNAL PROCESSING LETTERS
Citazione:	Cepstrum Prefiltering for Binaural Source Localization in Reverberant Environments / Parisi, Raffaele; Flavia, Camoes; Scarpiniti, Michele; Uncini, Aurelio. - In: IEEE SIGNAL PROCESSING LETTERS. - ISSN 1070-9908. - 19:2(2012), pp. 99-102. [10.1109/lsp.2011.2180376]
Handle:	http://hdl.handle.net/11573/434198
Appartiene alla tipologia:	01a Articolo in rivista

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