It also depends on how you want Audiosnap. If it's because you want to slice beats so they can be stretched, SONAR's loop construction window does something that's pretty much the same as Cubase's hit point detection, slices automatically (with slice point editing and the option to slice manuall, and saves in a format that follows tempo changes.
If you can indicate your end goal, there may be other ways to accomplish what you want in SONAR.