Experimental validation of TOA-based methods for microphones array positions calibration
Trung-Kien Le, Nobutaka Ono, Thibault Nowakowski, Laurent Daudet, Julien de Rosny
Abstract
This study is an experimental validation of a new closed-form method for automatic array position calibration, based on time of arrival (TOA) measurements between sources and sensors. An experiment with a large array composed of 121 microphones and a dozen of sources has been set up. We first show that, when considering the whole array, this calibration method gives results on par with a reference state-of-the-art acoustic method. We then show experimentally that the new method provides significantly better results when the number of sources and microphones decreases, confirming numerical simulations. We conclude the paper with a discussion on methodological issues for array position calibration.
BibTeX
@inproceedings{icassp2016_experimentalvali,
title = {Experimental validation of TOA-based methods for microphones array positions calibration},
author = {Trung-Kien Le and Nobutaka Ono and Thibault Nowakowski and Laurent Daudet and Julien de Rosny},
booktitle = {ICASSP 2016},
year = {2016}
}