NDLI: Wavelet Filtering Based on Mellin Transform Dedicated to Cochlear Prostheses

Content Provider	IEEE Xplore Digital Library
Author	Derbel, A. Kalel, F. Ben Hamida, A. Samet, M.
Copyright Year	2007
Description	Author affiliation: Ecole Nat. d'Ing. de Sfax, Sfax (Derbel, A.; Kalel, F.; Ben Hamida, A.)
Abstract	Current speech processing strategies for cochlear prosthesis system use filter bank structure in order to extract speech signal's energies relatively to the multiple frequency bands which are associated to the dedicated stimulation electrodes. This research concerned wavelet filtering module based on Mellin transform and dedicated to one cochlear speech processing strategy. Our bank filtering module was composed of twenty one filters designed according to Morlet mother wavelet and distributed along the Munich critical bands. Hence, our considered auditory spectrum would be divided into twenty one critical frequency bands according to ERB model (equivalent rectangular bandwidth) which would be similar to auditory model. Continuous wavelet transform based filters' outputs would processed in order to provide the relatively energy levels which would be considered as the targeted stimulation levels. Mellin transform used in this processing permitted a fast algorithm execution compared to one standard CWT based filtering module. Algorithm validation was approved using different input signals as pure harmonics first and then real speech signals extracted from TIMIT database. Our proposed strategy ensures not only execution rapidity but also flexibility in programming, easiness in use as well as different safety features that could help reaching each individual's needs.
Starting Page	1900
Ending Page	1903
File Size	386442
Page Count	4
File Format	PDF
ISBN	9781424407873
ISSN	1557170X
DOI	10.1109/IEMBS.2007.4352687
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-08-22
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filtering Wavelet transforms Prosthetics Filter bank Speech processing Continuous wavelet transforms Signal processing Electrodes Frequency conversion Bandwidth Mellin Transform Cochlear prosthesis Continuous wavelet transform Munich function
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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

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