Is FFT and iFFT available in sigma studio for ADAU1452?
Yes, it is available in version 3.14 and newer.
I have version 3.14.1, and I can't find it (even in help).
Advanced DSP/transform/ I can only find Hilbert.
This cell is in the block programming library. It does not run during one sample period but instead, it gets spread out over many sample periods. After all, you need a certain number of samples to perform the calculations. So on the top of the schematic window you see "Hardware Config" tab, "Schematic" tab and then the "Block Schematic" tab. Click on that tab and then the toolbox will change to the cells that are valid for block programming.
OK, I found it.
Is it possible to multiply with filter transform (to make convolution in frequency domain)?
Not yet, complex multiply is on the list of cells to develop. I am not certain when we will see it but it should be soon.
How is this block used in practice? Is it possible to get frequency info from input signal and send dominate frequency over the I2S interface?
Retrieving data ...