Pinholes and Plastic Wrap Make Solid Walls "Transparent" To Sound

First time accepted submitter benonemusic writes "Researchers have devised a means of making sound transmit easily through rigid surfaces, including walls. The process relies on creating small holes on a wall, and covering them on one side with a thin covering made from plastic wrap."

Comments

Why would you do this

[Anonymous Coward]

I thought we were trying to figure out how to keep sound from coming through the wall, not help it!

Let's see them patent the drum all over again

[icebike]

Ok, build a bunch of drum heads into a wall and notice they act just like, well, drum heads.
Brilliant. An acoustic diaphragm.

Can't think of a single use for this other than eves dropping where no electronics were allowed.