Auditory Inspired Binaural Robust Sound Source Localization in Echoic and Noisy Environments

We propose a new approach for binaural sound source localization in real world environments implementing a new model of the precedence effect. This enables the robust measurement of the localization cue values (ITD, UD and IED) in echoic environments. The system is inspired by the auditory system of...

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Hauptverfasser:	Heckmann, M., Rodemann, T., Joublin, F., Goerick, C., Scholling, B.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Acoustic noise Acoustic reflection Delay effects Filter bank Humans Loudspeakers Microphone arrays Robots Robustness Working environment noise
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creator	Heckmann, M. Rodemann, T. Joublin, F. Goerick, C. Scholling, B.
description	We propose a new approach for binaural sound source localization in real world environments implementing a new model of the precedence effect. This enables the robust measurement of the localization cue values (ITD, UD and IED) in echoic environments. The system is inspired by the auditory system of mammals. It uses a Gammatone filter bank for preprocessing and extracts the ITD and IED cues via zero crossings (UD calculation is straight forward). The mapping between the cue values and the different angles is learned offline which facilitates the adaptation to different head geometries. The performance of the system is demonstrated by localization results for two simultaneous speakers and the mixture of a speaker, music, and fan noise in a normal meeting room. A real time demonstrator of the system is presented in T. Rodemann, et al. (2006)
doi_str_mv	10.1109/IROS.2006.281758
format	Conference Proceeding
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subjects	Acoustic noise Acoustic reflection Delay effects Filter bank Humans Loudspeakers Microphone arrays Robots Robustness Working environment noise
title	Auditory Inspired Binaural Robust Sound Source Localization in Echoic and Noisy Environments
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