New Aspects of Virtual Sound Source Localization Research-Impact of Visual Angle and 3-D Video Content on Sound Perception

摘要

The influence of image on virtual sound source localization, called the "image proximity effect" or the "ventriloquism effect," is a well-known phenomenon. This paper focuses on other aspects related to this effect, namely the impact of the visual angle of the presented object and 3-D video content on sound perception. The research conducted confirmed that the visual angle of the presented object determines the image proximity effect regardless of the screen size. An interesting observation was made when studying the impact of 3-D video on virtual sound source localization. When two objects are displayed in a 3-D scene, the viewer's attention is more attracted by the object that is closer to the viewer (negative parallax). Two eye-gaze tracking systems were exploited in the presented experiments to objectivize the obtained results.