New Technology Update in Industry Noise Cancelling Technology | Page 4

 Batteries – The noise-cancelling electronics equipment is battery-powered.
 Microphone – These are mounted on the ear cup and used to receive external
sound waves that are ambient in nature, which originate from the traffic, crowd,
machinery, and others.
 Noise-Cancelling Circuitry – These circuitry analyses the disturbed noise and uses
this information to create a sound wave that counteracts it. The new sound wave
generated by this circuitry is exactly 180 degrees out of phase for cancelling out
the noise signal. Electronics in the ear piece create a noise-cancelling wave that is
the exactly opposite to the ambient noise captured by the microphone. This wave
acts similar to a noise eraser: it cancels out the unwanted sounds without falling
back on the primary playback audio.
 Speaker - This speaker receives the newly creates sound waves and plays them
into the ear buds.