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Optimizing In-Cabin Acoustic Comfort: Psychoacoustic Evaluation of Engine Sound Profiles

Garzón Vargas, Maria Juliana; Rachman, Zulfi Aulia; De Diego, María; González, Alberto; Ferrer, Miguel; Kang, Jian; Aletta, Francesco; (2025) Optimizing In-Cabin Acoustic Comfort: Psychoacoustic Evaluation of Engine Sound Profiles. In: De la Prida, Daniel and Ramis, Jaime and Machimbarrena, María, (eds.) Proceedings of the 11th Convention of the European Acoustics Association Forum Acusticum / EuroNoise 2025. (pp. pp. 163-168). European Acoustics Association: Málaga, Spain. Green open access

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Abstract

Achieving acoustic comfort inside the vehicle cabin typically requires a combination of Passive and Active Noise Control techniques, methods that have been effective at modifying the resulting sound field in a closed enclosure. [1] From a subjective point of view, not all noise sources are equally disturbing to passengers, and engine and road noise are often perceived as the most unpleasant noise sources, due to the presence of low-frequency components. This paper presents a subjective evaluation test designed to determine the most effective filter configuration that could improve the perception of engine noise inside a vehicle. Filtered engine noise samples are rated using the Bradley-Terry pairwise comparison method, allowing participants to express their preference between the original sound and three filtered versions of it. Recordings were captured under different operating conditions, including: driving state, gear shift and engine RPM configuration. Three perceptual attributes were chosen along with preference by default: pleasantness, power and naturality. This work aims to contribute to the development of Sound Quality Evaluation strategies that improve in-cabin acoustic comfort.

Type: Proceedings paper
Title: Optimizing In-Cabin Acoustic Comfort: Psychoacoustic Evaluation of Engine Sound Profiles
Event: 11th Convention of the European Acoustics Association Forum Acusticum / EuroNoise 2025
Dates: 23 Jun 2025 - 26 Jun 2025
ISBN-13: 978-84-87985-35-5
Open access status: An open access version is available from UCL Discovery
DOI: 10.61782/fa.2025.0665
Publisher version: https://doi.org/10.61782/fa.2025.0665
Language: English
Additional information: Copyright © 2025 Maria Juliana Garzón Vargas et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported Licence (https://creativecommons.org/licenses/by/3.0/deed.en), which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10219470
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