ADAU1442 EVB

We are developing noise removal algorithm by using SigmaStudio.
Now Noise Reduction algorithm is running under 16kHz sampling and ADAU1442 EVB is used.


1. I want to know the algorithm that is implemented under 49kHz sampling.
2. I am considering the beamformer algorithm, so I want to know the application Method.

3. I am trying to remove the noise by reversing the current noise and use anti- method, but I have a trouble in the time sync. 

I hope solve these problems.