Abstract
The sound quality of horn is important in views of two points. One is that it should be loud. The other one is that it is nice for a driver to hear the sound. Therefore, the exterior sound due to horn is related to loudness. The sound radiated from horn should be loud and the sound depends on the design of horn by itself. However, the interior sound due to horn depends on two paths. One is airborne path. The other one is structure-borne path. The sound quality of horn inside a car is related to the combination of sounds transferred throughout both paths. In order to evaluate the sound quality inside a car, the objective method evaluating the sound quality due to both paths is need to be developed. The paper presents the method evaluating objectively the sound quality of a horn inside a car based on the spectrum analysis and the octave analysis.
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