NDLI: Speech enhancement in harsh noisy environment using analytic decomposition of speech signal in critical bands

Content Provider	IEEE Xplore Digital Library
Author	Derakhshan, N. Savoji, M.H.
Copyright Year	2007
Description	Author affiliation: ECEF, Shahid Beheshti Univ., Tehran (Derakhshan, N.; Savoji, M.H.)
Abstract	An effective noise reduction algorithm based on signal analysis in sub-bands is proposed. Speech signal is analyzed in sub-bands using analytic decomposition in hearing critical bands where the envelopes and phases of the analytic signals are used. Noise reduction uses minimum mean square error log-spectral amplitude estimation (MMSE LSAE) noise suppression rule which preserves speech components while producing less musical residual noise. Experiments show that the nature of the band analysis in this work results in less musical noise in comparison with Fourier transform based methods. Moreover noise estimation algorithm in this work is a minima tracking algorithm which significantly reduces the level of musical noise when used in combination with MMSE LSAE.
Starting Page	1
Ending Page	4
File Size	371928
Page Count	4
File Format	PDF
ISBN	9781424407781
DOI	10.1109/ISSPA.2007.4555322
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-02-12
Publisher Place	United Arab Emirates
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speech enhancement Speech analysis Working environment noise Signal analysis Noise reduction Noise level Auditory system Mean square error methods Amplitude estimation Fourier transforms
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
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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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