A Biological Sound Source Localization Model

A. Azarfar, J. M. H. du Buf

2013

Abstract

In this paper we address sound source localization in the azimuthal plane. Various models, from the cochlear nuclei to the inferior colliculi, are implemented to achieve accurate and reliable localization. Coincidence detector cells in the medial nuclei and cells sensitive to interaural level difference in the lateral nuclei of the superior olive are combined with models of V- and I-type neurons plus azimuth map cells in the inferior colliculus. An advanced cell distribution in the inferior colliculus is proposed to keep ITD functions at any frequency within the physiological range of the head. Additional projections from the dorsal nucleus of the lateral lemniscus and the medial nucleus of the superior olive are modeled such that interaural time differences in different frequency bands converge to a single result. Experimental results demonstrate good performance in case of a variety of normal sounds.

References

  1. Blauert, J. (2001). Spatial Hearing. MIT Press.
  2. Fitzpatrick, D. C., Batra, R., Stanford, T. R., and Kuwada, S. (1997). A neuronal population code for sound localization. Nature, 388(6645):871-874.
  3. Gardner, B. and Martin, K. (2000). HRTF Measurements of a KEMAR Dummy-Head Microphone. MIT Media Lab.
  4. Jeffress, L. A. (1948). A place theory of sound localization. J Comp Physiol Psychol, 41(1):35-9.
  5. Liu, J., Perez-Gonzalez, D., Rees, A., Erwin, H., and Wermter, S. (2010). A biologically inspired spiking neural network model of the auditory midbrain for sound source localisation. Neurocomputing, 74(13):129-139.
  6. Palmer, A. and Kuwada, S. (2005). Binaural and spatial coding in the inferior colliculus. In : Winer, J. and Schreiner, C. (eds), The Inferior Colliculus, pages 377-410. Springer New York.
  7. Ramachandran, R. and May, B. J. (2002). Functional segregation of itd sensitivity in the inferior colliculus of decerebrate cats. J Neurophysiol, 88(5):2251-61.
  8. Raspaud, M., Viste, H., and Evangelista, G. (2010). Binaural source localization by joint estimation of ild and itd. Trans. Audio, Speech and Lang. Proc., 18(1):68- 77.
  9. Rose, J. E., Gross, N. B., Geisler, C. D., and Hind, J. E. (1966). Some neural mechanisms in the inferior colliculus of the cat which may be relevant to localization of a sound source. J Neurophysiol, 29(2):288-314.
  10. Slaney (1993). An efficient implementation of the Patterson-Holdsworth auditory filter bank. Apple Computer Technical Report, 35.
  11. Willert, V., Eggert, J., Adamy, J., Stahl, R., and Kaerner, E. (2006). A probabilistic model for binaural sound localization. IEEE Trans Syst Man Cybern B, 36(5):982-94.
  12. Winer, J. and Schreiner, C. (2005). The central auditory system: A functional analysis. In : Winer, J. and Schreiner, C. (eds), The Inferior Colliculus, pages 1- 68. Springer New York.
  13. Yin, T. C. T. (2002). Neural mechanisms of encoding binaural localization cues in the auditory brainstem. In : Fay, R.R., Popper, A.N. (eds), Integrative Functions in the Mammalian Auditory Pathway, pages 99-159. SpringerVerlag.
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Paper Citation


in Harvard Style

Azarfar A. and M. H. du Buf J. (2013). A Biological Sound Source Localization Model . In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2013) ISBN 978-989-8565-36-5, pages 333-337. DOI: 10.5220/0004247403330337


in Bibtex Style

@conference{biosignals13,
author={A. Azarfar and J. M. H. du Buf},
title={A Biological Sound Source Localization Model},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2013)},
year={2013},
pages={333-337},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004247403330337},
isbn={978-989-8565-36-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2013)
TI - A Biological Sound Source Localization Model
SN - 978-989-8565-36-5
AU - Azarfar A.
AU - M. H. du Buf J.
PY - 2013
SP - 333
EP - 337
DO - 10.5220/0004247403330337