Difference between active noise reduction and automatic noise reduction

The working principle is different, and the applicable scenarios are different.

1. Active noise reduction is to monitor and analyze the noise in real time through the built-in microphone and circuit, and then add the noise signal and the inverted signal in the form of inverted signal, so as to cancel the noise and achieve the effect of noise reduction; Automatic noise reduction is to identify and classify the noise through the preset noise reduction mode, and then automatically adjust the noise reduction effect according to different scenes and needs.

2. In terms of applicable scenes, active noise reduction is mainly suitable for scenes with complex and frequent environmental noise changes, such as airplanes, trains, subways and other public transport vehicles; Automatic noise reduction is mainly suitable for scenes with simple and stable noise, such as office and home.