Time-Delay Tolerance of Visual and Olfactory Feedback in Multi-Sensory Extended Reality

In recent years, the continuous development of multi-sensory extended reality has led to significant advancements in visual, tactile, and gustatory feedback. However, re-search on the delay tolerance of visual and olfactory feedback has been limited. Delay tolerance refers to the user's satisfaction with the synchronization of visual and olfactory feedback in the extended real environment. To address this research gap, our team has developed a system that allows users to receive both visual and olfactory feedback simultaneously. Specifically, within the virtual environment, the system controls an odor diffuser to release a scent when the user reaches a specific location. This study aims to explore the delay tolerance interval of visual and olfactory feedback by adjusting the timing of the odor diffuser. Additionally, we will analyze the user experience feedback from different groups and use the collected data to establish an optimal delay feedback model. This research holds significant potential for improving user experiences and deepening our understanding of the complex interactions between visual and olfactory feedback in virtual environments.