What Are the Noise Types of Earphones

At present, ANC active noise reduction technology and ENC environmental noise reduction technology are widely used.

ANC active noise reduction is to collect environmental noise and generate signals that are opposite to the noise and play them back with earphones and other devices to offset the noise. This is an advanced function that allows people to have an immersive hearing experience, and it is also a big selling point of most high-end Bluetooth earphones.

ENC environment noise reduction, also known as call noise reduction, can effectively suppress 90% of the reverse environment noise. Through the dual microphone array, the speaker's speaking direction is accurately calculated, and the interference noise in the environment is removed, making the call sound clearer.

High quality active noise reduction earphones generally adopt a dual noise reduction design combining the two.