2022-01-11 16:20:26
Noise-cancelling headphones are easy to use, but according to the noise-cancelling principle, they cannot filter human voices, only low-frequency noises, such as the roar of cars, subway sounds, and so on.On Ear Active Noise Cancelling Headphones， Therefore, it is not realistic to want to have your own world.
If you want to have your own world, it is best to find a quiet environment and use noise-cancelling headphones.
What are the noise reduction technologies of headphones? Which is better? What is the principle?
Active noise reduction: Use a microphone to collect ambient noise, and use technical means to eliminate the noise when you know what is the noise. The beneficiary is yourself, and the noise reduction effect is more thorough.
Passive noise reduction: Sound insulation through materials, absorbing noise, the beneficiary is yourself, and it saves power, and the effect is slightly worse than active.
Call noise reduction: The beneficiary is the call object, which reduces the ambient sound on your side so that the other party can hear it more clearly.
Noise floor: The inherent noise of the Bluetooth headset, which cannot be eliminated, is determined by the chip of the Bluetooth headset. In-ear headphones are like typical passive noise-cancelling headphones, which themselves have a certain noise-cancelling effect.
like：
How do noise-canceling headphones work?
Will using active noise cancelling headphones affect my hearing?
