회귀분석을 이용한 스포티 음질평가지수의 개발

Sporty Sound Quality Index (Sporty SQI), which evaluates how sporty automobiles are, can be persuasive and reliable when it expressed with measurable values such as loudness, sharpness. To describe Sporty SQI in a concrete form, subjective evaluations of sounds of vehicles are conducted. Psychoacoustic values of all of the samples are measured, and connected with evaluation results using stepwise regression analysis. As a results of regression analysis, only the loudness is dominant in relation between evaluation results and psychoacoustic metrics. This paper confirms that loudness is mainly has an impact on how sporty vehicles are, and the higher loudness level, the more users feel sporty during driving.