Open-source software for the application of microphone array methods. (March 2017)

• Record Type: Journal Article
• Authors: Herold, Gert; Sarradj, Ennes
• Is Part Of: Noise & vibration worldwide. Volume 48:Number 3/4(2017)
• Page Start: 44
• Page End: 51
• Publication Date: 2017-03
• Subjects: microphone array -- beamforming -- python -- software; Noise control -- Periodicals; Damping (Mechanics) -- Periodicals; Soundproofing -- Periodicals; Damping (Mechanics); Noise control; Soundproofing; Periodicals; 620.205
• DOI: 10.1177/0957456517699024
• Languages: English
• ISSNs: 0957-4565

Abstract

The open-source Python library Acoular is aimed at the processing of microphone array data. It features a number of algorithms for acoustic source characterization in time domain and frequency domain. The modular, object-oriented architecture allows for flexible programming and a multitude of applications. This includes the processing of measured array data, the mapping of sources, the filtering of subcomponent noise, and the generation of synthetic data for test purposes. Several examples illustrating its versatility are given, as well as one example for implementing a new algorithm into the package.