ReSpeaker Mic Array v2.0 and Speech recognition configuration

I need to use a high sensitivity microphone on a device that involves speech recognition. I selected Mic Array v2.0 and i had problems on speech recognition. After searching to find the cause, i rea on google docs for speech recognition the following:

  • Do not use automatic gain control (AGC).
  • All noise reduction processing should be disabled.
    Both of them are enabled on default on Mic Array v2.0. How can i disable them ?
    Thank you in advance