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Direction of Arrival Estimation for Multiple Speakers using Time-Frequency Orthogonal Signal Separation
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2006 (English)Conference paper (Refereed) Published
Abstract [en]

This paper presents a new approach for multiple speaker DOA estimation using an array of microphones. The method relies on the fact that multiple independent speakers have a small overlap in the time-frequency domain, i.e. the individual signals are almost W-disjoint orthogonal. By introducing a time-frequency mask and by continuously track the set of time-frequency points corresponding to each individual speech signal, a single source DOA estimation algorithm is used to find the DOA for each separated signal. This approach does not limit the solution to cases where the number of sensors exceeds the number of sources. Real room recordings are used to evaluate the performance of the method where source movements are also included.

Place, publisher, year, edition, pages
Toulouse: IEEE , 2006.
Keyword [en]
blind source separation, direction-of-arrival estimation, matrix algebra, microphone arrays, speech processing, time-frequency analysis
National Category
Signal Processing
URN: urn:nbn:se:bth-10020ISI: 000245559905065Local ID: 1-4244-0469-XOAI: diva2:838027
Copyright © 19xx/20xx IEEE. Reprinted from (all relevant publication info). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of BTH's products or services Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by sending a blank email message to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.Available from: 2012-09-18 Created: 2006-07-11 Last updated: 2015-06-30Bibliographically approved

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Swartling, MikaelClaesson, Ingvar
Signal Processing

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