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Assessing the Performance of Microphone Array Methods Using a Virtual Test Environment

Schumacher, Timo and Siller, Henri (2023) Assessing the Performance of Microphone Array Methods Using a Virtual Test Environment. In: Fortschritte der Akustik - DAGA 2023, pp. 357-360. Deutsche Gesellschaft für Akustik e.V. (DEGA). DAGA 2023 - 49. Jahrestagung für Akustik, 06.-09. Mär. 2023, Hamburg, Germany. ISBN 978-3-939296-21-8.

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Official URL: https://pub.dega-akustik.de/DAGA_2023/data/index.html


Modern microphone arrays allow the separation and analysis of complex acoustic sound sources. The technique enjoys a widespread use for both static and moving test configurations. Within the German Aerospace Center, the Engine Acoustics Department uses microphone arrays to measure aircraft acoustic sources in-flight. In addition to the test configuration and the conditions of the measurement, the quality of the results strongly dependents on the used evaluation method and chosen parameters, which can strongly influence the results. For the selection of a suitable method as well as parameters an objective evaluation of the quality of the results is necessary. Up to now, this has often been cumbersome. At the DAGA 2022 a methodology was presented to quickly make an objective statement whether an evaluation method is suitable for localizing sources. However, it was only demonstrated for a simple setup of two monopol sources. The aim of this presentation is to extend the methodology to a virtual test environment. This VTC allows the realistic simulation of flyover microphonarray recordings. Since conditions of the measurement can also be controlled, it is thus possible to estimate how microphone array investigations are affected by various environmental influences.

Item URL in elib:https://elib.dlr.de/194824/
Document Type:Conference or Workshop Item (Lecture)
Title:Assessing the Performance of Microphone Array Methods Using a Virtual Test Environment
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schumacher, TimoUNSPECIFIEDhttps://orcid.org/0000-0001-8349-2570134154177
Siller, HenriUNSPECIFIEDhttps://orcid.org/0009-0000-7155-6899UNSPECIFIED
Date:March 2023
Journal or Publication Title:Fortschritte der Akustik - DAGA 2023
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 357-360
Publisher:Deutsche Gesellschaft für Akustik e.V. (DEGA)
Keywords:Acoustics, Flyover, Auralization, Coherence Loss, Microphone Array, Beamforming
Event Title:DAGA 2023 - 49. Jahrestagung für Akustik
Event Location:Hamburg, Germany
Event Type:national Conference
Event Dates:06.-09. Mär. 2023
Organizer:Deutsche Gesellschaft für Akustik e.V. (DEGA)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Clean Propulsion
DLR - Research area:Aeronautics
DLR - Program:L CP - Clean Propulsion
DLR - Research theme (Project):L - Future Engines and Engine Integration
Location: Berlin-Charlottenburg
Institutes and Institutions:Institute of Propulsion Technology > Engine Acoustic
Deposited By: Schumacher, Timo
Deposited On:02 May 2023 10:12
Last Modified:02 May 2023 10:12

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