Broadband Source Localization From an Eigenanalysis Perspective

Abstract--Broadband source localization has several applications ranging from automatic video camera steering to target signal tracking and enhancement through beamforming. Consequently, there has been a considerable amount of effort to develop reliable methods for accurate localization over the last few decades. Essentially, the localization process consists in finding the candidate source location that maximizes the synchrony between the properly time-shifted microphone outputs. In addition to using well known cross-correlation-based criteria such as the steered response power (SRP), minimum variance (MV), and multichannel cross-correlation (MCCC), this synchrony can also be measured using the averaged magnitude difference function (AMDF) and the averaged magnitude sum function (AMSF) whose calculations involve low computational cost. In earlier related works, the latter techniques have been used for time delay estimation (TDE) of a target source observed by only one pair of micropho...

• Type: Journal
• Year: 2010
• Where: TASLP
• Authors: Mehrez Souden, Jacob Benesty, Sofiène Affes
• Keywords: Averaged Magnitude, Microphones, Multiple Microphones, Software Engineering, TASLP 2010