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Technical Note: Effects of different fuels on annoyance from diesel engine sounds
KTH, Superseded Departments, Vehicle Engineering.
2000 (English)In: Noise Control Engineering Journal, ISSN 0736-2501, Vol. 48, no 3, 102-106 p.Article in journal (Refereed) Published
Abstract [en]

Annoyance judgments of engine sounds under six different fuel conditions were investigated using forty subjects. An equal number of males and females participated in the listening test. Thirty stereophonic recorded sounds were randomly presented to the subjects through a pair of loudspeakers. All sounds were recorded in a hemi-anechoic room. The listening test was conducted using a sequential rating method known as the method of successive Intervals. Tests for effects of the different fuels were made on the basis of non-parametric statistics. Engine sounds for an ethanol fuel with 9% Beraid were rated as least annoying whereas engine sounds for a mixture of diesel and ethanol fuels were rated as most annoying, The differences In annoyance judgments for different fuels at the same engine running speed could not be predicted using the annoyance index developed in an earlier study based on loudness, sharpness and harmonic ratio.

Place, publisher, year, edition, pages
2000. Vol. 48, no 3, 102-106 p.
URN: urn:nbn:se:kth:diva-19871ISI: 000087964200004OAI: diva2:338563
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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