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Cabin noise measurements with microphone arrays and sound intensity probes

Ernst, Daniel and Spehr, Carsten and Doebler, Dirk (2018) Cabin noise measurements with microphone arrays and sound intensity probes. In: INTER-NOISE 2018 - 47th International Congress and Exposition on Noise Control Engineering: Impact of Noise Control Engineering (1510), pp. 1-8. INTERNOISE 2018, 27.-29. Aug. 2018, Chicago, IL, USA.

Full text not available from this repository.

Official URL: https://internoise2018.org/

Abstract

Aircraft cabin noise measurements in flight are necessary to characterize the acoustic experience in the cabin. The goal is to quantify the noise level, to identify the entry point of acoustic energy into the cabin, and to identify the noise source. Measurements were done in the ground-based Dornier 728 cabin noise simulation system. This system produces a realistic in-flight cabin sound field by 78 distributed vibration exciters on the back of the cabin lining. The measurements were conducted using an array of 30 microphones at different positions and synchronized afterwards to establish a virtual array with 420 microphones. Beamforming and source integration methods are used to derive an acoustic intensity level from the array measurements. As a reference, the acoustic intensity was measured using a pp-probe and the results are compared with the ones obtained using the array.

Item URL in elib:https://elib.dlr.de/125011/
Document Type:Conference or Workshop Item (Speech)
Title:Cabin noise measurements with microphone arrays and sound intensity probes
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ernst, Danieldaniel.ernst (at) dlr.deUNSPECIFIED
Spehr, Carstencarsten.spehr (at) dlr.deUNSPECIFIED
Doebler, Dirkdoebler (at) gfai.deUNSPECIFIED
Date:2018
Journal or Publication Title:INTER-NOISE 2018 - 47th 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:Yes
In ISI Web of Science:No
Page Range:pp. 1-8
Series Name:Conference Proceedings online
Status:Published
Keywords:Microphone Array, Handheld, Cabin noise, sound intensity
Event Title:INTERNOISE 2018
Event Location:Chicago, IL, USA
Event Type:international Conference
Event Dates:27.-29. Aug. 2018
Organizer:International Institute of Noise Control Engineering I-INCE
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:09 Jan 2019 13:17
Last Modified:18 Jul 2019 16:07

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