**Except for the floor and the bed, all other textures were rendered in Blender, with the lighting baked directly into them. However, for the floor and bed, I baked PBR textures instead. As a result, the floor and bed receive dynamic shadows from in-game lighting, while the other areas do not.
In the VAMmoan plugin, scroll to the very bottom. There is an Audio Min Distance setting,set it to the maximum, and the problem will be resolved.