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EXTRACTION OF SOUND LOCALIZATION CUE UTILIZING PITCH CUE FOR MODELLING AUDITORY SYSTEM

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Okuno, Takatoshi, McGinnity, TM and Maguire, LP (2011) EXTRACTION OF SOUND LOCALIZATION CUE UTILIZING PITCH CUE FOR MODELLING AUDITORY SYSTEM. In: 8th Sound and Music Computing Conference, Padova, Italy. SMC 2011. 6 pp. [Conference contribution]

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Abstract

This paper presents a simple model for the extraction of a sound localization cue utilizing pitch cues in the auditory system. In particular, the extraction of the interaural time difference (ITD) as the azimuth localization cue, rather than the interaural intensity difference (IID), is constructed using a conventional signal processing scheme. The new configuration in this model is motivated by psychoacoustical and physiological findings, suggesting that the ITD can be controlled by the pitch cue in the simultaneous grouping of auditory cues. The localization cues are extracted at the superior olivary complex (SOC) while the pitch cue may be extracted at a higher stage of the auditory pathway. To explore this idea in the extraction of ITD, a system is introduced to feed back information on the pitch cue to control and/or modify the ITD for each frequency channel.

Item Type:Conference contribution (Poster)
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Computing and Intelligent Systems
Research Institutes and Groups:Computer Science Research Institute
Computer Science Research Institute > Intelligent Systems Research Centre
ID Code:19900
Deposited By:Dr Takatoshi Okuno
Deposited On:16 Sep 2011 14:11
Last Modified:16 Sep 2011 14:11

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