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Cabin noise measurements with microphone arrays and sound intensity probes

Spehr, Carsten and Ernst, Daniel and Ahlefeldt, Thomas (2019) Cabin noise measurements with microphone arrays and sound intensity probes. In: INTER-NOISE 2019 - 48th International Congress and Exposition on Noise Control Engineering: Impact of Noise Control Engineering (1605), pp. 1-10. Inter-Noise 2019, 16.-19. June 2019, Madrid, Spain.

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Official URL: http://www.sea-acustica.es/fileadmin//INTERNOISE_2019/Enter.htm

Abstract

Aircraft cabin noise measurements in flight are used to identify the noise sources and entry points of acoustic energy into the cabin and to quantify the respective noise levels. The aim of an ongoing project of the partners GfaI and DLR is to develop a handheld measurement system suitable for cabin noise in-flight measurements. In the current study an optical tracking system and two measuring principles of the sound intensity are combined in order to measure the sound intensity with focus of developing a MEMS microphone array based system. Suitable MEMS microphones were tested and calibrated and a MEMS microphone array was developed to measure the sound intensity.

Item URL in elib:https://elib.dlr.de/127997/
Document Type:Conference or Workshop Item (Speech)
Additional Information:I-INCE Classification of Subject Number: 72
Title:Cabin noise measurements with microphone arrays and sound intensity probes
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Spehr, Carstencarsten.spehr (at) dlr.dehttps://orcid.org/0000-0002-2744-3675
Ernst, Danieldaniel.ernst (at) dlr.deUNSPECIFIED
Ahlefeldt, Thomasthomas.ahlefeldt (at) dlr.dehttps://orcid.org/0000-0002-2869-2665
Date:June 2019
Journal or Publication Title:INTER-NOISE 2019 - 48th International Congress and Exposition on Noise Control Engineering: Impact of Noise Control Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-10
Series Name:Conference Proceedings online
Status:Published
Keywords:MEMS-microphone array, cabin noise measurements, MEMS intensity array
Event Title:Inter-Noise 2019
Event Location:Madrid, Spain
Event Type:international Conference
Event Dates:16.-19. June 2019
Organizer:Spanish Acoustical Society (SEA)
Institution:Deutsches Zentrum für Luft- und Raumfahrt e.V.
Department:AS-EXV
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Deposited By: Micknaus, Ilka
Deposited On:26 Jul 2019 11:06
Last Modified:19 Sep 2019 16:17

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