Module audio Bluetooth ANC Technology for Bluetooth Headset

Aujourd'hui, the Bluetooth headsets are becomming a crucial part in our life. And for this type of product, ANC technology is a key factor when it comes to noise cancelation.

What is ANC technology?

ANC refers to Active Noise Control, which actively reduces noise. The basic principle is that the noise reduction system produces reverse sound waves equal to the outside noise, neutralizing the noise. Figure 1 is a schematic diagram of a feedforward active noise canceling earphone. The ANC chip is placed inside the earphone. Ref mic (reference microphone) collects ambient noise on the earphones. Error mic (Error Microphone) Collects the residual noise after noise reduction in the earphone. Speaker plays the anti-noise after ANC processing.

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About the ANC technology, quel type de module audio Bluetooth pourrait prendre en charge cette technologie? Actuellement, avec la puce Bluetooth Qualcomm série QCC51X, Les modules QCC3040 et QCC3046 pourraient prendre en charge. Avec plus d'informations Bluetooth, bienvenue à contacter l'équipe Feasycom.