OBJECTIVE EVALUATION OF HUMAN PERCEPTION OF AUTOMOTIVE SOUND BASED ON PHYSIOLOGICAL SIGNAL OF HUMAN BRAIN

• Published in: International journal of automotive technology pp. 273 - 282
• Main Authors: 이승민, 이상권
• Format: Journal Article
• Language: English
• Published: 한국자동차공학회 01.03.2014
• Subjects: 자동차공학
• ISSN: 1229-9138; 1976-3832
• DOI: 10.1007/s12239−014−0028−4

This paper presents a novel approach to apply the physiological signal of the human brain to the sound qualityevaluation of automotive sound. In the previous work, psychoacoustic metrics were applied to the sound quality evaluation ofautomotive sound. Loudness among psychoacoustic metrics is used for one of major sound metrics for the objective evaluationof the sound quality of the acceleration sound inside a car. Subjective evaluation of the sound quality of the acceleration soundshows different results depending on the two different groups of participants. One group liked powerful sound when a car isaccelerated: the other group liked the refine sound. Loudness of the acceleration sound is not correlated with the subjectiverating of the former group whilst it is correlated with that of the latter group. This evaluation suggests that for the people wholike the powerful acceleration sound, it needs to find the sound metric for the objective evaluation of the sound quality of theacceleration sound. In this paper, a driver’s brain signal is measured using electroencephalography (EEG) when a driver hearsthe acceleration sound of passenger cars. The signal is analyzed to obtain the relationship between brain signals and humanperception. According to these results, the alpha wave correlates to the human perception of powerful sound quality ofpassenger cars. This interesting relationship can be used for objective evaluation of passenger car sounds. KCI Citation Count: 15