Signal processing strategies for cochlear implants using current steering

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dc.identifier.uri Nogueira, Waldo Litvak, Leonid Edler, Bernd Ostermann, Jörn Büchner, Andreas 2017-07-19T07:41:51Z 2017-07-19T07:41:51Z 2009
dc.identifier.citation Nogueira, W.; Litvak, L.; Edler, B.; Ostermann, J.; Büchner, A.: Signal processing strategies for cochlear implants using current steering. In: Eurasip Journal on Advances in Signal Processing 2009 (2009), 531213. DOI:
dc.description.abstract In contemporary cochlear implant systems, the audio signal is decomposed into different frequency bands, each assigned to one electrode. Thus, pitch perception is limited by the number of physical electrodes implanted into the cochlea and by the wide bandwidth assigned to each electrode. The Harmony HiResolution bionic ear (Advanced Bionics LLC, Valencia, CA, USA) has the capability of creating virtual spectral channels through simultaneous delivery of current to pairs of adjacent electrodes. By steering the locus of stimulation to sites between the electrodes, additional pitch percepts can be generated. Two new sound processing strategies based on current steering have been designed, SpecRes and SineEx. In a chronic trial, speech intelligibility, pitch perception, and subjective appreciation of sound were compared between the two current steering strategies and standard HiRes strategy in 9 adult Harmony users. There was considerable variability in benefit, and the mean results show similar performance with all three strategies. eng
dc.language.iso eng
dc.publisher Heidelberg : Springer Verlag
dc.relation.ispartofseries Eurasip Journal on Advances in Signal Processing 2009 (2009)
dc.rights CC BY 4.0
dc.subject Audio signal eng
dc.subject Cochlear implant eng
dc.subject Current steering eng
dc.subject Different frequency eng
dc.subject On currents eng
dc.subject Pitch perception eng
dc.subject Sound processing eng
dc.subject Spectral channels eng
dc.subject Valencia eng
dc.subject Wide bandwidth eng
dc.subject Audio systems eng
dc.subject Continuous speech recognition eng
dc.subject Digital filters eng
dc.subject Electrodes eng
dc.subject Frequency bands eng
dc.subject Signal processing eng
dc.subject Speech intelligibility eng
dc.subject Cochlear implants eng
dc.subject.ddc 621,3 | Elektrotechnik, Elektronik ger
dc.title Signal processing strategies for cochlear implants using current steering
dc.type article
dc.type Text
dc.relation.issn 1687-6172
dc.bibliographicCitation.volume 2009
dc.bibliographicCitation.firstPage 531213
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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