Application of MEMS microphone array for acoustic holography
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F15%3APU115114" target="_blank" >RIV/00216305:26220/15:PU115114 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Application of MEMS microphone array for acoustic holography
Original language description
The paper shows the overall potential and applicability of microphone arrays equipped with MEMS miniature capacitive microphones for use with near-field acoustic holography algorithms to visualize and localize sound sources. Comprehensive test of double layer rectangular matrix microphone array and several acoustic holography algorithms has been carried out to find weaknesses of proposed MEMS array technology in practical measurement conditions including complex sources and disturbing sound field. Test setups include determination of secondary (disturbing) source strength, influence of distance of the primary and secondary sources and also measurement array stand-off distance on prediction accuracy of localization and characterization of sound and vibration sources. Attention is also focused on available signal-to-noise ratio of sound pressure measurement with applied MEMS microphones and its influence on determination of regularization parameters for inverse acoustic holography calculation. Drawbacks of complex or even unfeasible calibration procedure for such MEMS transducers also influence the presented prediction accuracy results in practical measurements.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10307 - Acoustics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of Euronoise 2015
ISBN
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ISSN
2226-5147
e-ISSN
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Number of pages
6
Pages from-to
919-924
Publisher name
European Acoustics Association
Place of publication
Maastricht, Belgie
Event location
Maastricht
Event date
May 31, 2015
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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