Study on the Visualization of the Impression of Listening to the Music

In this study, we considered audio equipment evaluation using the sound of music. Audio amplifiers were set up as the evaluation targets, and sound quality differences between them were visualized by a wavelet analysis using an actual musical sound signal. We considered the cause of these differences and then tried to connect the sound impression to an analysis result. WT ( wavelet transform ) of the sound of music was carried out to evaluate two amplifiers. The sound quality of amplifier A related to the esthetic factor of the "depth " and has been analyzed as the high region of WT, and that of amplifier B related to the force factor of the "depth " and has been analyzed as the low region of WT. Thus, we were able to visualize the impression of listening to the music by correlation of the auditory experiment and wavelet analysis.