NDLI: Single sideband encoder for music coding in cochlear implants

Content Provider	IEEE Xplore Digital Library
Author	Kaibao Nie Atlas, L. Rubinstein, J.
Copyright Year	2008
Description	Author affiliation: Depts. of Otolaryngology, Univ. of Washington, Seattle, WA (Kaibao Nie)
Abstract	The restoration of melody perception is a key remaining challenge in cochlear implants. We propose a new sound coding strategy that converts an audio signal into time-varying electrically stimulating pulse trains. A sound is first split into several frequency subbands and each subband signal is coherently downward shifted to a low-frequency base band, similar to demodulation used in single sideband (SSB) radios. These resulting coherent envelope signals have Hermitian symmetric frequency spectrums and are thus real-valued. A peak detector in each subband further converts the coherent envelopes into rate-varying and interleaved pulse trains. Acoustic simulations of cochlear implants with normal hearing listeners showed significant improvement in melody recognition over the most common stimulation approach used in cochlear implants.
Starting Page	4209
Ending Page	4212
File Size	198604
Page Count	4
File Format	PDF
ISBN	9781424414833
ISSN	15206149
DOI	10.1109/ICASSP.2008.4518583
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cochlear implants Frequency Signal restoration RF signals Demodulation Amplitude modulation Acoustic signal detection Envelope detectors Acoustic pulses Auditory system cochlear implants hearing auditory system demodulation ears
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in