External tire noise: Determination of timbre parameters and unpleasantness factors, with a focus on truck tires - Archive ouverte HAL
Article Dans Une Revue Applied Acoustics Année : 2023

External tire noise: Determination of timbre parameters and unpleasantness factors, with a focus on truck tires

Résumé

The Leon-T project aims to reduce emissions (noise and particles) from heavy goods vehicles (HGV) tires. This study was focused on the noise emitted by tires in suburban conditions (70 km/h). Its aim was to identify the sound parameters responsible for the unpleasantness of this noise. An initial experiment based on recordings (of passenger cars, light and heavy goods vehicles) highlighted the important timbre parameters used by listeners in two conditions (signals recorded at the roadside and modified to simulate the effect of a standard facade). For noises heard inside dwellings, it seems that intensity and tonality are the most important factors (unlike car tires, truck tires can emit noise with a strong tonal character). In a second experiment, signals were synthesised to simulate tire passing noises, with controlled loudness and tonality. Participants were asked to evaluate the unpleasantness of sounds. Results showed that the contributions of both factors to unpleasantness were equivalent. This could lead to the recommendation that tonality be considered in of tire noise regulations.
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Dates et versions

hal-04346363 , version 1 (15-12-2023)

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Thibaut Marin-Cudraz, Etienne Parizet, Beatriz Bragado Perez. External tire noise: Determination of timbre parameters and unpleasantness factors, with a focus on truck tires. Applied Acoustics, 2023, 216, ⟨10.1016/j.apacoust.2023.109765⟩. ⟨hal-04346363⟩

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