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DEVELOPMENT OF PHYSIOLOGICALLY INSPIRED SIGNAL PROCESSING STRATEGIES FOR COCHLEAR

Award Number: R43DC013006
ORGANIZATION: NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 12/01/2012
PERIOD OF PERFORMANCE END DATE: 11/30/2013

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DEVELOPMENT OF PHYSIOLOGICALLY INSPIRED SIGNAL PROCESSING STRATEGIES FOR COCHLEAR - DESCRIPTION (provided by applicant): Cochlear implants (CI) are neural prostheses that provide meaningful auditory experience to more than 200,000 deaf patients worldwide. Despite significant success in quiet listening conditions, CIs currently provide only limited benefit in nosy real world situations. A critical limitation of the signal processing strategies employed by curren CIs is that they provide only a crude approximation of the processing that occurs in a healthy inner ear. In particular, current strategies only provide the envelope cues of band-pass filtered speech; the rapidly varying temporal fine structure cues associated with the carriers are simply not conveyed. Studies with normal-hearing listeners have shown that these temporal fine structure cues are converted into amplitude envelope cues by the peripheral auditory system. The aim of the study in Phase I is to develop processing that mimics that fine-structure -to-envelope conversion for CIs. Processing strategies will be tested with CI users through use of an experimental interface that allows direct control of signals modulating the pulse streams to the CI electrodes. Experimental processing algorithms will be compared to users' personal processors on tests of speech reception in quiet and noise. If the results of Phase I show that the new signal processing strategies provide intelligibility benefits, work in Phase II will be aimd at: customizing the signal processing strategies for individual listeners; evaluating the benefits f the new signal processing strategies in reverberation; implementation of the new signal processing strategies on wearable processors; and field testing of cochlear implantees with prototype devices that incorporate the new signal processing strategies. Success in this project will result in enhanced speech reception by CI users in everyday noisy backgrounds.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2013 ( Subtotal = $204,583 )
2013	2013	SENSIMETRICS CORPORATION	48 GROVE STREET, SUITE 305	SOMERVILLE	MA	02144	MIDDLESEX	USA	Research Related to Deafness and Communication Disorders	000	1	11/23/2012	NEW	$204,583
														Subtotal = $204,583

Grand Total All Awards = $204,583

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DEVELOPMENT OF PHYSIOLOGICALLY INSPIRED SIGNAL PROCESSING STRATEGIES FOR COCHLEAR

Award Number: R43DC013006

ORGANIZATION: NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 12/01/2012

PERIOD OF PERFORMANCE END DATE: 11/30/2013

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