3D DOA estimation of multiple sound sources based on spatially constrained beamforming driven by intensity vectors
Despoina Pavlidi, Symeon Delikaris-Manias, Ville Pulkki, Athanasios Mouchtaris
Abstract
Sound source localization in three dimensions with microphone arrays is an active field of research, applicable in sound enhancement, source separation, and sound field analysis. In this contribution we propose a method for three dimensional multiple sound source localization in reverberant environments. We employ a spatially constrained steered response beamformer on a spherical sector centered at the direction of arrival (DOA) estimates of the intensity vector. Experiments are performed in both simulated and real acoustical environments with a spherical microphone array for multiple sound sources under different reverberation and signal-to-noise ratio (SNR) conditions. The performance of the proposed method is compared with our previously proposed work and a subspace method in the spherical harmonic domain. The results demonstrate a significant improvement in terms of localization accuracy.
BibTeX
@inproceedings{icassp2016_3ddoaestimationo,
title = {3D DOA estimation of multiple sound sources based on spatially constrained beamforming driven by intensity vectors},
author = {Despoina Pavlidi and Symeon Delikaris-Manias and Ville Pulkki and Athanasios Mouchtaris},
booktitle = {ICASSP 2016},
year = {2016}
}