Button-Sound-Quality Evaluation for Car Audio Main Units

  • Shunsuke IshimitsuEmail author


Society widely appreciates the idea of sound being a normal part of a product’s operation. As a result, much attention has been directed at designing various sounds that are treated as noise, such as automobile acceleration. Car drivers detect variations in the sound characteristics between different buttons of an audio system; e.g., the pitch, tone color, loudness, and duration. These characteristics can affect the desirability of both a car and its audio system. In this study, we evaluated the sound design of transient signals for 11 different button sounds. To accurately represent button sounds, one of the time–frequency representations, wavelet transform, which structure is similar to an auditory time–frequency resolution feature, is used. An impression was extracted using the semantic differential method, and the relationship between the representation of the wavelet transform and its sound impression was investigated.


Sound design Button sound Audio Car interior Wavelets 


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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Hiroshima City UniversityHiroshimaJapan

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