Acceleration sound design for vehicles using distortion products

Yu Aburagi, Natsuki Yamagiwa, Noriyuki Tanimoto, Shunsuke Ishimitsu, Satoshi Fujikawa, Mitsunori Matsumoto, Yasuki Murakami

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    When considering the acoustic design of automobiles, generation of low-frequency sounds is advantageous as these sounds can increase users' excitement levels. However, there are several problems associated with an increase in the low-frequency levels of an engine sound. For example, it is difficult to create a balance between invoking silence and excitement in the user when a sound's different-order components are changed. It is also difficult to generate heavy-bass engine sounds in practical scenarios. Thus, the application of distortion products in the auditory system of the cochlea was considered. Distortion products are perceived when two or more sounds with slightly different frequencies are played simultaneously. This study was conducted to examine the possibility of achieving powerful engine sounds using distortion products. First, the relationship between different combinations of complex sounds and the pitch perception of distortion products was investigated. Second, the application of distortion products to acceleration sounds was considered. The results suggested the possibility of synthesizing a low-frequency component using distortion products inside the cochlea.

    Original languageEnglish
    Title of host publicationProceedings of INTER-NOISE 2021 - 2021 International Congress and Exposition of Noise Control Engineering
    EditorsTyler Dare, Stuart Bolton, Patricia Davies, Yutong Xue, Gordon Ebbitt
    PublisherThe Institute of Noise Control Engineering of the USA, Inc.
    ISBN (Electronic)9781732598652
    DOIs
    Publication statusPublished - 2021
    Event50th International Congress and Exposition of Noise Control Engineering, INTER-NOISE 2021 - Washington, United States
    Duration: Aug 1 2021Aug 5 2021

    Publication series

    NameProceedings of INTER-NOISE 2021 - 2021 International Congress and Exposition of Noise Control Engineering

    Conference

    Conference50th International Congress and Exposition of Noise Control Engineering, INTER-NOISE 2021
    Country/TerritoryUnited States
    CityWashington
    Period8/1/218/5/21

    All Science Journal Classification (ASJC) codes

    • Acoustics and Ultrasonics

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