Summary
International Symposium on Nonlinear Theory and its Applications
2005
Session Number:3-1-2
Session:
Number:3-1-2-1
How ears go electronic
R. Stoop, A. Kern, J.-J. v.d. Vyver,
pp.533-536
Publication Date:2005/10/18
Online ISSN:2188-5079
Summary:
We demonstrate the design and performance of an artificial Hopf-type electronic cochlea along biomorphic biophysically detailed principles. From a biophysically detailed model of the mammalian cochlea, we first derive a biomorphic close-to-hardware software simulation that is used as the hardware blueprint. By virtue of its biomorphic design, the hardware implementation yields results that are hardly distinguishable from physiological measurements, at a minimum of implementation costs. Moreover, the silicon cochlea shares all the signal processing features exhibited by the biological cochlea. In particular, it may be actively tuned, towards objects provided by an analysis of the auditory scene. With these properties it can serve as the central ingredient for overcoming the wellknown cocktail-party problem of hearing.