Beam Forming sample for MIC ARRAY

I'm in the first steps of my project. Selected STM32F446ZE Nucleo board for developing MIC ARRAY application as 446ZE used in BLUE COIN and made my own same arranged mic array board. Now I found there is no Beam Forming sample for it!

ST has a document about beam forming with 4 mics (just same as blue coin arrangement) but suggested DFSDM peripheral that could find in another MCU!

I am confused. is there any sample code to use as start point or all things should be done from the zero?