Development and Evaluation of VVRPlot, a Smart Phone Application for Drawing Two-Variable Functions in VR Space Using Speech Recognition

The use of virtual reality (VR) in education has recently proven effective in several areas. Here, we study whether the use of mobile VR, involving the use of VR goggles and smartphones and that can be administered inexpensively, improves the effectiveness of education. Mobile VR does not allow the use of auxiliary devices for input. Therefore, in our previous study, we employed the volume button as an input for mobile VR.In this study, we use a combination of gaze and voice in the VR space as input for mobile VR. Incorporating this technique, we created an application that draws a graph of a two-variable function in a VR space and to be evaluated it by users. The application was considered as easy to use with eye gaze input, but difficult to use with voice input.