Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-60764
Finger, H; Liu, S C (2011). Estimating the location of a sound source with a spike-timing localization algorithm. In: IEEE International Symposium on Circuits and Systems (ISCAS) 2011, Rio de Janeiro, Brazil, 15 May 2011 - 18 May 2011, 2461-2464.
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A binaural spike-based sound localization system suitable for real-time attention systems of robots is presented in this work. This system uses the output spikes from a 64-channel binaural silicon cochlea. The localization algorithm implements a spike-based correlation of these output spikes that measures the interaural time differences (ITDs) between the arrival of a sound to two microphones. The algorithm continuously updates a possible distribution of ITDs in the auditory scene whenever a spike arrives from either ear of the cochlea. Experimental results show that the system can estimate an azimuth angle to below 1 deg resolution. This algorithm is computationally cheaper than conventional generalized cross-correlation methods and is quicker to respond to changes in the scene.
|Item Type:||Conference or Workshop Item (Paper), refereed, original work|
|Communities & Collections:||07 Faculty of Science > Institute of Neuroinformatics|
|DDC:||570 Life sciences; biology|
|Event End Date:||18 May 2011|
|Deposited On:||09 Mar 2012 15:29|
|Last Modified:||18 Oct 2012 08:10|
|Series Name:||IEEE International Symposium on Circuits and Systems proceedings|
|Number of Pages:||3|
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