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Old 12th March 2019
Here for the gear

Originally Posted by akebrake View Post
How do you know it's the floor vibrating? How exactly did you test that?
Accelerometer / contact pick up?

Well, It's pretty obvious if you stand on the floor while reproducing a sine wave at 73 Hz. You can really feell it vibrating. In fact you even can see it moving like a speaker would.

Another no scientifical test I did was using a drums tunning app. If I hit the floor with my fist hard enough to make a loud sound. The app reads exactly 73Hz.

The floor Is damped with a heavy rubber layer and green glue but i think It IS resonating.

Ah! and other thing I found out is that the wavelenght of 73 Hz is 4.7 meters, almost matching the room width.

How could I make myself sure that It is the floor actually making things worst?