Signal Processing Strategies for Electrostimulated Ear Prostheses Based on Simulated Nerve Response

Improvements to the coding strategy of prostheses for the profoundly deaf which can be implemented by the speech processors of these devices are suggested. Difficulties with vowel recognition are diagnosed as being due to nerve properties. These are studied with the aid of a model in order to find ways of overcoming the difficulties.

[1]  Rainer Hartmann,et al.  Discharge patterns of cat primary auditory fibers with electrical stimulation of the cochlea , 1984, Hearing Research.

[2]  E S Hochmair,et al.  PERCEPTS ELICITED BY DIFFERENT SPEECH‐CODING STRATEGIES a , 1983, Annals of the New York Academy of Sciences.

[3]  J. B. Ranck,et al.  Which elements are excited in electrical stimulation of mammalian central nervous system: A review , 1975, Brain Research.

[4]  F Rattay,et al.  Ways to approximate current-distance relations for electrically stimulated fibers. , 1987, Journal of theoretical biology.

[5]  F Rattay,et al.  High frequency electrostimulation of excitable cells. , 1986, Journal of theoretical biology.

[6]  M M Merzenich,et al.  Multichannel cochlear implants. Channel interactions and processor design. , 1984, Archives of otolaryngology.

[7]  A. Carney Cochlear Prostheses: An International Symposium, , 1984 .

[8]  F. Rattay,et al.  Modeling the excitation of fibers under surface electrodes , 1988, IEEE Transactions on Biomedical Engineering.

[9]  F. Rattay,et al.  Simulation of the Response of a Multichannel Nerve Array to Pulse Shapes Produced by Single-Channel Electrostimulation , 1987, Perception.

[10]  F. Rattay,et al.  Modelling and simulation of electrically stimulated nerve and muscle fibers: a review , 1987 .

[11]  F. Rattay,et al.  A model for the electrostimulation of the nervus acusticus , 1984, Neuroscience.

[12]  F. Rattay,et al.  A study of the application of the Hodgkin-Huxley and the Frankenhaeuser-Huxley model for electrostimulation of the acoustic nerve , 1986, Neuroscience.

[13]  A. Hodgkin,et al.  A quantitative description of membrane current and its application to conduction and excitation in nerve , 1952, The Journal of physiology.