Signal processing strategies for cochlear implants using current steering

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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: https://doi.org/10.1155/2009/531213

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/1745

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Sum total of downloads: 209




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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.
License of this version: CC BY 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2009
Appears in Collections:Fakultät für Elektrotechnik und Informatik

distribution of downloads over the selected time period:

downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 140 66.99%
2 image of flag of United States United States 28 13.40%
3 image of flag of China China 18 8.61%
4 image of flag of Israel Israel 3 1.44%
5 image of flag of United Kingdom United Kingdom 3 1.44%
6 image of flag of No geo information available No geo information available 2 0.96%
7 image of flag of Russian Federation Russian Federation 2 0.96%
8 image of flag of Luxembourg Luxembourg 2 0.96%
9 image of flag of India India 2 0.96%
10 image of flag of Uzbekistan Uzbekistan 1 0.48%
    other countries 8 3.83%

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