NDLI: Dual channels noise cancelling system

Content Provider	IEEE Xplore Digital Library
Author	Yan Zhaoli Du Limin Feng Ji Xie Lingyun Fu Jun
Copyright Year	2001
Description	Author affiliation: Inst. of Phys., Acad. Sinica, Beijing, China (Yan Zhaoli)
Abstract	To realize speaker-free speech recognition with DSP, a 2-channel recording system was developed and used to set up a speech library. The filters, including a high-pass filter, an LMS adaptive filter and a combination of these two, were adopted to separate a speaker's voice from a noisy background. The noise cancellation effectiveness of these filters was evaluated. It is worth noting that 1/f noise is shown to be a very important factor for the effectiveness of an adaptive filter. After the prior cancellation of 1/f noise at frequencies lower than 1 Hz in this study, the output signal of an adaptive filter can be improved significantly. This is of value not only for speech processing systems, but also for other adaptive filter systems.
Starting Page	445
Ending Page	448
File Size	352635
Page Count	4
File Format	PDF
ISBN	9628576623
DOI	10.1109/ISIMP.2001.925429
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-05-04
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Acoustic noise Working environment noise Adaptive filters Speech recognition Speech enhancement Noise cancellation Libraries Background noise Speech processing Microphones
Content Type	Text
Resource Type	Article

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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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