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Localization of sound sources by means of unidirectional microphones

Rizzo, P and Bordoni, G and Marzani, A and Vipperman, J (2009) Localization of sound sources by means of unidirectional microphones. Measurement Science and Technology, 20 (5). ISSN 0957-0233

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This paper describes the results of a new approach devoted to the localization of ground borne acoustic sources. It is demonstrated that an array made of at least three unidirectional microphones can be exploited to identify the position of the source. Sound features extracted either in the time domain or in the frequency domain are used to localize the direction of the incoming sound. This information is then fed into a semi-analytical algorithm aimed at identifying the source location. The novelty of the method presented here consists in the use of unidirectional microphones rather than omnidirectional microphones and in the ability to extract the sound direction by considering features like sound amplitude rather than the time of arrival. Experimental tests have been undertaken in a closed environment and have demonstrated the feasibility of the proposed approach. It is believed that this method may pave the road toward a new generation of reduced-size sound detectors and localizers, and future work is described in the conclusions. © 2009 IOP Publishing Ltd.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Rizzo, Ppir3@pitt.eduPIR30000-0002-7159-2221
Bordoni, G
Marzani, A
Vipperman, Jjsv@pitt.eduJSV0000-0001-5585-954X
Date: 28 September 2009
Date Type: Publication
Journal or Publication Title: Measurement Science and Technology
Volume: 20
Number: 5
DOI or Unique Handle: 10.1088/0957-0233/20/5/055202
Schools and Programs: Swanson School of Engineering > Mechanical Engineering and Materials Science
Refereed: Yes
ISSN: 0957-0233
Date Deposited: 21 Sep 2018 19:17
Last Modified: 02 Feb 2019 15:55


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