From Hearing to Listening: Design and Properties of an Actively Tunable Electronic Hearing Sensor
| Autor: | Tom Jasa, Ruedi Stoop, Yoko Uwate, Stefan Martignoli |
|---|---|
| Přispěvatelé: | University of Zurich, Stoop, R |
| Rok vydání: | 2007 |
| Předmět: |
Cochlear amplifier
1303 Biochemistry hearing sensor Computer science Quantitative Biology::Tissues and Organs 3107 Atomic and Molecular Physics and Optics lcsh:Chemical technology Biochemistry Analytical Chemistry otorhinolaryngologic diseases lcsh:TP1-1185 Active listening Electrical and Electronic Engineering Instrumentation Cochlea electronics 10194 Institute of Neuroinformatics 1602 Analytical Chemistry Signal processing Full Paper business.industry 3105 Instrumentation 2208 Electrical and Electronic Engineering Amplifier Electrical engineering Atomic and Molecular Physics and Optics 570 Life sciences biology business |
| Zdroj: | Sensors (Basel, Switzerland) Sensors, Vol 7, Iss 12, Pp 3287-3298 (2007) Sensors; Volume 7; Issue 12; Pages: 3287-3298 Sensors, 7 (12) |
| ISSN: | 1424-8220 |
| DOI: | 10.3390/s7123287 |
| Popis: | An important step towards understanding the working principles of the mammalian hearing sensor is the concept of an active cochlear amplifier. Theoretical arguments and physiological measurements suggest that the active cochlear amplifiers originate from systems close to a Hopf bifurcation. Efforts to model the mammalian hearing sensor on these grounds have, however, either had problems in reproducing sufficiently close essential aspects of the biological example (Magnasco, M.O. Phys. Rev. Lett. 90, 058101 (2003); Duke, T. & Jülicher, F. Phys. Rev. Lett. 90, 158101 (2003)), or required complicated spatially coupled differential equation systems that are unfeasible for transient signals (Kern, A. & Stoop, R. Phys. Rev. Lett. 91, 128101 (2003)). Here, we demonstrate a simple system of electronically coupled Hopf amplifiers that not only leads to the desired biological response behavior, but also has real-time capacity. The obtained electronic Hopf cochlea shares all salient signal processing features exhibited by the mammalian cochlea and thus provides a simple and efficient design of an artificial mammalian hearing sensor. Sensors, 7 (12) ISSN:1424-8220 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|