Analysis of Active Noise Reduction Principle

The active noise reduction earphones work in parallel on two lines. In addition to normal playback, the earphones also need to collect ambient noise through the microphone, and then emit noise inverted sound waves to counteract it. Therefore, when we talk about the noise reduction ability of earphones, we mainly talk about the performance of active noise reduction chips in earphones - the better the chip performance, the closer the ripples it simulates are to the true sound waves of the noise, and the more accurately it can be offset. Another technical aspect of noise reduction earphones is the microphone used to collect noise.