acoustic feedback suppression on ADAU1452

Hi,

I need to develop an AFS algorithm in ADAU1452.

My algorithm prototype operates in the frequency domain so I would need the block processing and FFT functionality of the ADAU1452.

However, there does not seem to be much I can do in the frequency domain using an ADAU1452 and SigmaStudio 4.2. At least in terms of developing an AFS feature, as there does not seem to be a way to extract the frequency bins and the magnitude levels of the FFT results.

I therefore need to develop a custom block that can handle this.

I have access to the DesignerNew.dll but it does not seem to work with ADAU1452.

So, I would like to know:

1) Is there a way to extract the frequency bins of the FFT processing blocks and there corresponding magnitude levels?

2) Is there a way for me to create custom processing blocks for the ADAU1452

3) If the above two are not possible, what are my options with proceeding with a realisation of an AFS algorithm on this DSP?

Audio Signal Processors

adau1452

SigmaDSP Audio Processors