Get a video camera. Record sound and image when the prototyping kits falls to floor.

Try having the kit fall in different directions, and report how that affects fall speed and sound when the kit impacts the floor.

Did you have other ideas about your audiovisual experiment? Maybe even record information from the insdie of the prototyping kit? Why then post so scarce information? It sounds a lot like a school assignment, but no people on this forum really do anything about the task, except for that single sentence you wrote.

You can never expect help, unless you are ready to write a good post describing clearly what your plans/goals/problems/questions are. We just can't read minds.