QuietOn with Active Noise Cancelling technology makes a big difference at low frequencies, such as the hum of airplane engines, construction sites or normal background noise. Its attenuation ability in this area is up to 40dB. For instance, airplane cabin noise sounds like a faint hum with QuietOn earplugs. The earplugs significantly reduce stress level caused by constantly noisy environments. In mid and high frequencies, QuietOn’s noise cancelling is as good as foam earplugs’.
Active noise cancelling uses a microphone to sample the sound, and a speaker to create a phase-shifted sound that cancels the original sound.
In QuietOn, the microphone that samples the sound is located right inside the ear canal! This means that QuietOn can more accurately produce anti-noise that results in good noise cancellation at the ear drum. By locating the microphone in the air volume of the ear canal, QuietOn is also able to reduce noise that is conducted by the skull into the ear.
HOW QUIETON ANC EARPLUGS PERFORM ACROSS THE WHOLE AUDIBLE SPECTRUM