Hi,
I see an alias, using DFSDM (sinc3) and a PDM mic at 16kHz, while a speaker produces 1...24kHz.
The spectrogram is attached.
As I understand, the DFSDM filter has a notch at 16kHz rather than at 8kHz, and attenuates 8kHz for 12dB only.
Is it possible to configure DFSDM such way to attenuate the alias much more?
