Experiment on Audio-visual Mutual Effect on Subjective Impression in Architectural Space by HMD VR Display
* Presenting author
The purpose of this study is to clarify the influence of visual information on subjective impression for room sound field. Authors have carried out subjective experiments on it using room impulse response signal as auditory stimulus and interior panorama picture as visual stimulus, and found that reverberance/clarity for room sound field is affected by information sensible from room volume, dimensions, geometry or finishing etc. Visual stimulus of interior panorama picture is projected on flat screen in these experiments, but visual experiences were not always same as those in real room. In this report, new experiments using head mounted display instead of flat screen in presenting visual stimulus were conducted. Results were compared with previous experiment of flat screen, and the presentation methods of visual stimuli were inspected. It was found that subjective dimensions for room were affected by reverberance of auditory impression in the new experiment unlike previous one. Influence of visual information was clarified in the close condition to reality.