JiaWeiHua is the leading active noise cancelling headphone manufacturer in China, with advanced ANC active noise canceling technology, so what is ANC active noise canceling technology?

ANC active noise reduction technology: refers to the technology that collects environmental noise and generates a signal that is inverse to the noise and replays it with headphones and other devices to cancel the noise. The algorithm is based on the superimposition of the inverted signal with the phase difference of the noise signal by 180 degrees with the original signal offset. The mainstream ANC noise reduction schemes are divided into: feedforward, feedback and hybrid active noise reduction.

The logic of ANC active noise reduction is:

Pickup (monitoring environmental noise) → processing chip (analyzing noise curve) → speaker (generating reverberating sound waves) → completing the process of noise reduction synthesis.

To put it simply, assuming that the noise that appears is A, after being detected by an external pickup, the Razer Death Shark will instantly produce a -A sound, and the two cancel each other in the ear to achieve the noise reduction function. It can be said that your ears have "heared" the noise, but at the same time you have also heard "noise reduction". The two cancel each other out in your ears to achieve noise reduction.

It is understood that in the feedback in-ear system, the placement of the microphone will be limited by space. Therefore, 99% of feedback headphones are generally over-ear or over-ear design. Of course, there are feedback in-ear designs currently on the market. However, in general, the noise reduction effect of over-ear or over-ear active noise reduction headphones (feedforward + feedback) is better than that of the in-ear design.