Title: Effect of automobile operating condition on the subjective equivalence of steering wheel vibration and sound

Authors: M. Ajovalasit, J. Giacomin

Addresses: School of Engineering and Design, Brunel University, West London, Uxbridge, Middlesex, UB8 3PH, UK. ' School of Engineering and Design, Brunel University, West London, Uxbridge, Middlesex, UB8 3PH, UK

Abstract: The research described here was performed to define curves of subjective equivalence between steering wheel rotational vibration and sound using stimuli from different automobile operating conditions. The steering wheel acceleration stimuli were summarised in terms of the unweighted and W_h weighted r.m.s. values, while the sound stimuli were summarised in terms of the unweighted SPL in decibels, the A-weighted SPL in decibels, the Stevens Mark VI loudness in sones, the Stevens Mark VII loudness in sones and the Zwicker loudness in sones. The results suggest that both the statistical properties of the stimuli, and the choice of metric, effect the shape of the equivalence curve.

Keywords: vehicle vibration; vehicle noise; automobile operating condition; steering wheel vibration; sound and vibration perception; psychophysics; rotational vibration.

DOI: 10.1504/IJVNV.2007.014905

International Journal of Vehicle Noise and Vibration, 2007 Vol.3 No.2, pp.197 - 215

Published online: 16 Aug 2007 *

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