The subjective effect of low frequency content in road traffic noise

Torija Martinez, AJ ORCID: and Flindell, IH 2015, 'The subjective effect of low frequency content in road traffic noise' , The Journal of the Acoustical Society of America (JASA), 137 (1) , pp. 189-198.

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Based on subjective listening trials, Torija and Flindell [J. Acoust. Soc. Am. 135, 1–4 (2014)] observed that low frequency content in typical urban main road traffic noise appeared to make a smaller contribution to reported annoyance than might be inferred from its objective or physical dominance. This paper reports a more detailed study which was aimed at (i) identifying the difference in sound levels at which low frequency content becomes subjectively dominant over mid and high frequency content and (ii) investigating the relationship between loudness and annoyance under conditions where low frequency content is relatively more dominant, such as indoors where mid and high frequency content is reduced. The results suggested that differences of at least þ30 dB between the low frequency and the mid/high frequency content are needed for changes in low frequency content to have as much subjective effect as equivalent changes in mid and high frequency content. This suggests that common criticisms of the A-frequency weighting based on a hypothesized excessive downweighting of the low frequency content may be relatively unfounded in this application area.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: The Journal of the Acoustical Society of America (JASA)
Publisher: Acoustical Society of America
ISSN: 0001-4966
Related URLs:
Funders: University of Malaga and the European Commission, seventh Framework Programme for R & D of the EU, granted within the People Programme, Co-funding of Regional, National and International Programmes (COFUND), Ministerio de Economıa y Competitividad of Spain
Depositing User: Dr Antonio J Torija Martinez
Date Deposited: 03 Dec 2019 15:01
Last Modified: 16 Feb 2022 03:28

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