In diesel engine trucks, the sound quality improvement as well as the noise level reduction is demanded because of their annoying exterior noise. The semantic differential method was applied to evaluate the sound quality of trucks. In order to improve the analytical accuracy, subjects who can evaluate the characteristics of sound quality were statistically selected among all the subjects. Comfortability and powerfulness were extracted as the principal components by using the data of the selected subjects. It has been clarified that the comfortability strongly relates to high frequency element ratio, high frequency level, etc. The powerfulness strongly relates to the Zwicker loudness.


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    Title :

    Study on Exterior Idling Sound Quality Evaluation Method for Diesel Engine Trucks


    Additional title:

    Sae Technical Papers


    Contributors:
    Sato, Naoki (author) / Miura, Yasuo (author)

    Conference:

    Noise & Vibration Conference & Exposition ; 1999



    Publication date :

    1999-05-17




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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