NDLI: BSS for improved interference estimation for Blind speech signal Extraction with two microphones

Content Provider	IEEE Xplore Digital Library
Author	Yuanhang Zheng Reindl, K. Kellermann, W.
Copyright Year	2009
Description	Author affiliation: Multimedia Communications and Signal Processing, University of Erlangen-Nuremberg Cauerstr. 7, 91058, Germany (Yuanhang Zheng; Reindl, K.; Kellermann, W.)
Abstract	Blind Source Extraction (BSE) as desirable for acoustic cocktail party scenarios requires estimates for the target or interfering signals. Conventional single-channel approaches for obtaining the interference estimate rely on noise and interference estimates during absence of the target signal. For multichannel approaches using multiple microphone signals, a separation of simultaneously active target and interference signals becomes possible if the positions of the target and interfering sources are known. We propose a new method which exploits Directional BSS (Blind Source Separation with a geometric constraint) to estimate the interfering speech sources and diffuse background noise jointly and blindly. Herewith we can effectively deal with the underdetermined BSS scenario (more point sources than sensors) in reverberant environments and can even allow for additional babble noise in the background.
Starting Page	253
Ending Page	256
File Size	479316
Page Count	4
File Format	PDF
ISBN	9781424451791
DOI	10.1109/CAMSAP.2009.5413286
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-13
Publisher Place	Aruba
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Source separation Array signal processing Interference Speech enhancement Signal processing MIMO Blind source separation Background noise Microphones Sensor arrays
Content Type	Text
Resource Type	Article

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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
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