I'm not aware of anything that figures out compression (rather than sound), but smash factor can be figured out with swing speed vs ball speed (I've got a radar that measures both).

I use video, SSR, WTF measurement, a grip size example display, a lie board and a launch angle mat to fit (LA mat only for drivers). Video shows me the release and impact position of my client (which tells me if I need to work harder or not on finding a shaft). I'm about to experiement with a new shaft fitting system - the originator claims 85% success; which is a good starting point. I also use some trajectory software to look at potential changes to loft and shaft kick point, etc to see what changes could be made to increase distance. The only thing I'm missing is something to quantify spin - but I may buy a Vector to help with that (and then I can also retire the Launch Angle mat).

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True Length Technology Fitter - www.truelengthtechnology.com
It's live! - www.ShipShapeClubs.com
PCS Class 'A' Clubfitter

A new highlight: Golfing the home course on Christmas Day.

I say it too often: If it's golf club shaped, you can play with it.

For the record, I'm a club doctor, not a swing doctor.