what is the difference between ANC,CVC,DSP for noise reduction technology

- May 08, 2020-

Recently there are customers confused about the noise reduction technology, there are some standard such as DSP(digital signal processing), CVC (Clear Voice Capture), ANC(Active Noise Control).


Today we are going to talk about the difference between DSP and CVC and ANC. So that you can much more clear about the noise reduction technology and which standard is suitable for your application.


What is DSP?

DSP is a shorthand for digital signal processing. The microphone collects external environmental noise, then through the noise reduction system function inside the earphone, it replicates to generate a reverse sound wave equal to the ambient noise, which cancels the noise and thus achieves more. Good noise reduction effect.


What is CVC?

CVC is short for Clear Voice Capture. It is a software noise reduction technology. It can suppress various types of reverberation noise through the built-in noise cancellation software and microphone.


What is ANC?

ANC refers to Active Noise Control. The noise reduction system produces reverse sound waves equal to the outside noise, neutralizing the noise. 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.


Feasycom Qualcomm series module do support CVC technology. we have QCC3007 chipset, QCC3034 chipset, CSR8670, CSR8675 ext.

For more details, please contact feasycom team.