Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : July 18, 2024
Conventionally, discomfort caused by the loudness of broadband sound has been a problem in the operating noise of rotating machinery whose power source is an internal combustion engine. Recently, with the shift to electric power sources, discomfort caused by the sound quality of pure tones has become a problem. The operating sound of rotating machinery is composed of a broadband sound and pure tones, and as the broadband sound becomes quieter, the pure tones become more prominent. Tonality is a psychoacoustic metric that expresses the prominence of pure sound, but the influence of other metrics on subjective evaluation of actual noise has not been clarified.
In this study, we examine the influence of psychoacoustic metrics on the perception of pure tones by combining subjective evaluation and psychoacoustic metrics related to pure tones, in order to understand the correlation between the evaluation of the degree of recognition of pure tones and psychoacoustic metrics.
