Passive Noise Cancellation - definition

Passive Noise Cancellation is like having big, fluffy earmuffs. It doesn't need a battery or a smart robot. It simply uses the materials of the headphones, like foam pads or earmuffs, to block out the external noise. It's like when you cover your ear canals with your hands to block out a loud noise.

Passive noise cancellation is a method that blocks external sounds physically. It doesn’t require any power or electronics. The design of the headphones or earbuds, the materials used, and the fit in or over the user’s ear canals contribute to this. It’s often seen in over-ear headphones with thick padding or in-ear earbuds that seal the ear canal. While it’s effective at reducing consistent, low-frequency sounds like the hum of a plane or train, it’s less effective for sudden, high-frequency sounds.