Active Noise Control System

This is the product having an advanced technology of "Active Noise Control (ANC)".  ANC technology is a cancellation technique to quiet the offensive noise.  Application of an opposite polarity noise with proportional amplitude to the offensive (original) sound generates the sound interference and cancellation.  The controller (computer) incorporating into ANC system analyzes the waveform of the offensive noise, and the speaker in the system generates a polarization reversed wave form to cancel it out by interference.

ACTIVE NOISE CONTROL SYSTEM ANC Application with Microphone/Sensor & Speakers mounted on the sound-attenuation barrier wall