MoXaRt: Audio-Visual Object-Guided Sound Interaction for XR. - Tianyu Xu 008; Sieun Kim; Qianhui Zheng; Ruoyu Xu; Tejasvi Ravi; Anuva Kulkarni; Katrina Passarella-Ward; Junyi Zhu 001; Adarsh Kowdle (CHI, 2026)