# Sound propagation in solids

1. Sep 25, 2007

### jacketyjack

Hi all,

I was wondering whether someone can help/guide me. I am doing a project that involves sound propagation in solids. Basically, I have two microphones placed on a surface (say a piece of wood). Then, when a person taps on the surface I can detect the tap and determine the amplitude of tap at both microphones. I then use the two amplitudes (listeners) to triangulate the position of the tap on the surface. The equations/model I am using is exponential decay of sound in solids as follows:

$$A_{}1$$