An experimental result of influence of visual presentation method on subjective evaluation of moving boat noise

The value shift of the impression evaluation concerned with the sound affected by the visual stimulus was researched by many researchers. Then we focused on human subjective evaluation of the noise stimulus of moving source in this study. Our objective is to clarity the influence of visual information on the subjective evaluation of one moving boat noise. In this experiment, we examined the subjective evaluation of the moving source comparison between the stimulus of the sound and visual in the case of moving boat noise. Especially, we discuss some presentation sizes of visual information. This experiment used a 24-inch monitor and headphones, and the sound pressure level was around 70 dB. The visual information were three kinds of visual contents which were the video of a moving boat, the background image without boat and a word of the type of boat. The result suggested that the value of subjective evaluation of the moving source of loud boat noise was decreased in the case of visual information of the moving boat like as the word of boat type.