In this paper, in order to develop a linear regression model for the sound quality index of vehicle interior noise, an objective measurement data of vehicles driving in acceleration was measured. On the basis of analysis, psychoacoustic parameters wer...
In this paper, in order to develop a linear regression model for the sound quality index of vehicle interior noise, an objective measurement data of vehicles driving in acceleration was measured. On the basis of analysis, psychoacoustic parameters were extracted and subjective evaluation was performed by noise and vibration expert evaluators. The subjective evaluation was used paired comparisons and semantic differential methods to evaluate sound Quality of vehicle interior noise. By using paired comparison which evaluate two pairs of vehicle interior noise, it was estimated preference of vehicle. With the methods of semantic differential and factor analysis, it was evaluated words of two pairs of adjective which expressed appropriately the sense of evaluator about noise source. Therefore sound quality characteristics of vehicle were differentiated. From results of both the correlation analysis and the multiple factor regression analysis, sound quality evaluation model for the sense of human hearing was derived and was indexed.