Links
Noise Braker® Test Data - Copies of the NRR test results.
How the Noise Braker® Works - Protect Your Hearing Using the Laws of Physics
The Accelerated Resonant Decay Principle
It is an axiom of physics that we cannot create or destroy energy. We can however, convert it. The Hocks Noise Braker Filter® converts sonic energy into thermal energy by means of compression acceleration. The rise in temperature is so minute you will never notice it. You can still hear but a dangerous level of sound can not possibly get through the filter.
You will need to install the latest version of Flash Player in order to view the demonstration correctly. Download Flash Player 9