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Improving the Sound Quality of aircraft sounds by means of an Interactive Sound Synthesis Machine – Results of the COSMA Study

Müller, U. and Marki, F. and Griefahn, B. (2015) Improving the Sound Quality of aircraft sounds by means of an Interactive Sound Synthesis Machine – Results of the COSMA Study. InterNoise 2015, 09.-12.08.2015, San Francisco.

Full text not available from this repository.

Abstract

Reducing aircraft noise annoyance acoustically usually concentrates on lowering noise emissions for single aircraft components such as engines and high lift devices or optimizing noise abatement flight procedures. Although the overall sound pressure level of the aircraft contributes most to the acoustically related portion of annoyance, sound quality effects should not be disregarded in order to get clear technical guidelines to achieve less annoying aircraft sounds in the future. Within the EU-FP7-project COSMA (Community Oriented Solutions to Minimize aircraft noise Annoyance) an Interactive Sound Synthesis Machine was used by 156 subjects from 5 European laboratories to create own preferred sounds for 5 different aircraft (departure and approach each) by using faders assigned to attenuate or amplify several distinct acoustical parameters like buzz saw, tonal components, airframe noise etc. Basic technical constraints were considered, the overall loudness was kept constant at all times. The combined flight path and acoustical measurements of the aircraft were taken at Munich airport and its decomposed sounds were used as inputs for the faders. This method – as shown by the results – has distinct benefits compared to the Semantic Differential technique for judging single flyover events where it is particularly difficult for naïve subjects to assess the perceptual attributes even if they are trained.

Item URL in elib:https://elib.dlr.de/99893/
Document Type:Conference or Workshop Item (Speech)
Title:Improving the Sound Quality of aircraft sounds by means of an Interactive Sound Synthesis Machine – Results of the COSMA Study
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Müller, U.uwe.mueller (at) dlr.deUNSPECIFIED
Marki, F.UNSPECIFIEDUNSPECIFIED
Griefahn, B.Institute for Occupational Physiology at Dortmund UniversityUNSPECIFIED
Date:2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:aircraft noise, noise effects research, sound quality
Event Title:InterNoise 2015
Event Location:San Francisco
Event Type:international Conference
Event Dates:09.-12.08.2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Human factors and safety in Aeronautics
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Flight Physiology
Deposited By: Sender, Alina
Deposited On:24 Nov 2015 12:07
Last Modified:10 May 2016 23:35

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