Sound Lev. check using Respeaker 4-mic Array v2.0

Hi,
Is there a API to check Sound level(dB, etc) using Respeaker 4-mic Array v2.0

Is there detail Docs of Parameters of built-in algorithms On Respeaker 4-mic Array v2.0
https://wiki.seeedstudio.com/ReSpeaker_Mic_Array_v2.0/

Thanks.