Mô-đun âm thanh Bluetooth ANC Technology for Bluetooth Headset

Ngày nay, 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, loại mô-đun âm thanh Bluetooth nào có thể hỗ trợ công nghệ này? Hiện nay, với dòng chip Bluetooth QCC51X của Qualcomm, Mô-đun QCC3040 và QCC3046 có thể hỗ trợ. Với nhiều thông tin Bluetooth hơn, chào mừng đến liên hệ với nhóm Feasycom.