An Exploratory Analysis of Sound Field Characteristics using the Impulse Response in a Car Cabin

作者: Yoshiharu Soeta , Yoshisada Sakamoto

DOI: 10.3390/ENVIRONMENTS5040044

关键词: Air conditioningElectric motorImpulse responseSound (geography)Quality (physics)Exploratory analysisAcousticsEnergy (signal processing)Environmental scienceSound field

摘要: Sound environments in cars are becoming quieter and receiving attention because of the prevalence low-noise engines such as hybrid electric manifestation automated driving. Although car cabin has potential a listening space, its acoustic quality not been examined detail. The present study investigated sound field characteristics using parameters obtained by impulse response analysis. In particular, effects passenger position, open windows use an air conditioner on were investigated. position affected strength at low frequencies. Rear seats, except for rear central seat, had lower interaural correlation than front suggesting that seats have more diffused fields. opening conditioners attenuated ratio early- late-arriving energy high frequencies, loss clarity music.

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