Setting the audio sample rate?


I am interested in learning if it is possible to change the 16 kHz audio sample rate:

  • Is it currently possible to change this parameter?
  • Are there plans to make this changeable via HAL?

It appears that you guys are doing the PDM to PCM conversion on the FPGA and that code is not publicly available? If the PDM to PCM conversion code is available, please provide a pointer…

The current PDM-PCM method does not appear to filter out signals/noise above 8 kHz. For example, I played a 20 kHz tone and captured it on the MC and it appeared aliased at 4 kHz…

Any info on this would be appreciated.