PhysXLab is a standalone software in which you import FBX models and then you subdivide them. PhysXLab exports the FBX as .apb. Unreal Engine is able to recognize that format and the assets can be used for destruction simulation. 
Software to make audio -> no, you can’t create specific sounds with your computer. You can download royalty-free sounds, or you can record real-life sounds and filter the noise in Audacity. LOL