What are headphones to reduce noise?

headphones Reduating noise are those that are made to provide a more pleasant experience of listening by blocking the surrounding noise. If they are successful, they will cancel a large part of the noise around the listener and provide peace and silence in an otherwise noisy environment. Many airlines patrons use headphones reducing noise, especially when sitting near the area of ​​food or crying child. Despite its relatively high cost -reducing costs, noise can become a necessity for a frequent air traveler rather than luxury. The first, passive noise reduction is done by blocking sounds with insulating material such as high density foam. When these materials are part of the headphone, they reduce the perceived ambient noise by a factor of ten or more. However, passive noise reduction is often not enough. For example, inside the passenger beam, this amount of ISE is still allowing enough engine noise to cause discomfort to someone who wants to relax quietly. Here comes active noise reduction. MostMy headphones reduce noise depends on the active reduction of noise to a large extent to achieve their purpose. The degree of efficiency of active noise reduction is usually what distinguishes the highest quality headphones from the average.

Active noise reduction uses science about acoustics to "repel" the surrounding noise from the wearer's ears. This technology goes beyond the reduction of passive noise and actually produces sound waves that resemble the waves of the surrounding noise in many ways. They are almost identical to the fact that it is a mirror image, so to say, the surrounding noise. When these two sets of sound waves interact, they cancel each other in a process called destructive interference. The final result is complete silence. This gives the bearer the ability to concentrate on what he listens to, or simply block the sounds around him, allowing him to relax.

noise reduction technology has certain limitations. Although it is excellent in blocking sounds thatThey are constant and unchanging, as a jet engine, has a heavier time to block sudden or high -frequency sounds such as a ringing phone or other random sounds. Since active sound reduction creates its own sound wave, it may in some cases endanger the quality of the music or other sound. However, these compromises are usually worthwhile for some peace and silence.