Noise-Cancelling Headphones

These headphones hush ambient noise by creating antinoise that obviates the noise at your ear. They don't eliminate noise, but the better models

significantly reduce the whoosh of airplanes' air-conditioning systems. (They're somewhat less effective at quieting the background din on trains and

buses.) Noise-canceling headphones come in all forms, from full size to earbuds. Since you no longer have to crank up the volume to overcome background

noise, this type of headphone lets you listen at lower levels, which leads to reduced ear fatigue. You'll also hear more low-level detail in your music.



Noise-canceling headphones bring down unwanted ambient sounds (i.e., acoustic noise) by way of active noise control (ANC). Basically, this involves using a microphone, placed near the ear, and electronic circuitry which produces an "antinoise" sound wave with the opposite polarity of the sound wave arriving at the microphone. This results in interference, which cancels out the noise within the enclosed volume of the headphone.

They don't completly eliminate noise, but the better models significantly reduce the whoosh of airplanes' air-conditioning systems.

Noise-canceling headphones come in all forms, from full size to earbuds. Since you no longer have to crank up the volume to overcome background noise, this type of headphone lets you listen at lower levels, which leads to reduced ear fatigue. You'll also hear more low-level detail in your music.