Contribution
Acoular Workshop: An Interactive Tutorial on Advanced Microphone Array Methods for Acoustic Source Mapping
* Presenting author
Abstract:
Microphone array methods are widely used to characterize acoustic sources in engineering acoustic applications ranging from acoustic testing to environmental monitoring. Traditional beamforming techniques often exhibit limitations in source strength reconstruction accuracy and spatial resolution due to the influence of the array point-spread function. Advanced inverse and deconvolution methods have emerged to address these challenges, improving source characterization accuracy. In this tutorial, participants will be introduced to the basic principles of inverse and deconvolution methods with hands-on demonstrations using the Acoular framework. Two widely used methods are covered: the inverse Covariance Matrix Fitting (CMF) method, and the CLEAN based on spatial source coherence (CLEAN-SC) deconvolution method. Their performance will be examined through comparisons with simulated and experimental data.