Kõrvaklappide kõlarite aktiivse müravähendustehnoloogia 3 eelist

Kõrvaklappide kõlarite aktiivse müravähendustehnoloogia 3 eelist

       Three advantages of active noise reduction technology for headphone speakers:

       (1) The noise reduction effect is more outstanding

       Passive noise-cancelling headphones only partially isolate high-frequency noise, while active noise-cancelling headphones have a better effect on low-frequency noises that people often come into contact with, such as "humming" air conditioner noise, bus engine noise, and subway noise. There will be obvious noise cancellation such as engine friction noise, which can reduce the ambient noise by up to 25dB-35dB. At the same time, active noise reduction only makes a proper noise cancellation effect for ambient noise, which is different from shielding all sounds. In terms of passive noise reduction, the effect of noise reduction is more prominent and better.

       (2) The objective conditions are less restrictive

       Passive noise reduction often uses sound insulation materials, such as earplugs and other closed objects, to achieve the effect of noise reduction, and can only shield high-frequency noise, and has no obvious effect on the effect of medium and low frequencies. The passive noise reduction method is backward, and the scope of application is small. Active noise reduction is even better in this regard. It collects surrounding noise through highly sensitive microphones, and can quickly and effectively deal with noise in complex environments, such as air conditioners, car interiors, cabins, subways, buses, etc. Its objective The conditions are relatively less restrictive.

       (3) Mature technical experience

       Active noise reduction technology was first used in the rigorous and high-end military field. After decades of development, a large number of scientific research and technological achievements and practical application experience have been accumulated, and it has achieved unparalleled scientific and technological achievements in the civilian market. In terms of practical application, the effect of this technology is quite stable, and it is gradually extending from high-end applications to the civilian market.