how does a bose headphone work ?

Question

Basically i would like to know the concept used to produce sound in Bose headphones.

Answer 1

I think I understand what you're asking. Specifically, you're curious about headphones that have "noise-canceling capability." From my limited knowledge, it works similar to a pair of 3D glasses. Using its own generated sound wave, it cancels out common enviromental noise by sending the sound at angles that will cause the ambiant noises to not be noticed. Imagine you're at a beach, and a wave is coming straight at you. Now, imagine ANOTHER wave comes in at an angle, striking the wave that's coming right at you at an oblique angle. By the time the now-combined wave reaches you, it's at least diminished, if not gone altogether. The converging waves sap energy from each other, weakening them. It's all principles involving partical movement. Sound (and light) is nothing more than a wave, the vibrations of molecules transfered over a distance from one particle to another (which is why sound doesn't exist in a pure vacuum).

Answer 2

just like normal headphone