The evaluation of Sound Power Level and development of index for Sound Quality of Vacuum Cleaner according to performances of Sound Absorbtion Materials

흡음재 성능에 따른 진공청소기의 음향파워 평가 및 음질인덱스 개발

Today, the use of a vacuum cleaner gave us the higher quality of life than past time, but sometimes made us w1comfortable in the house because of the specific noise that is annoying. So we need to study how sound absorbtion materials affect sound power level and sound quality with sound metrics. In this paper, we will measure and calculate sound power level for vacuum cleaner and analyze characteristics of the noise for 10 Signals according to materials positioned in vacuum cleaner. The multiple regression analysis can estimate the nonlinear characteristics of relation between subjective evaluation and sound metrics. So we will develop sound quality index for vacuum sound.