Respeaker 6-Mic Array - Raw Audio data of each microphone

Hey there,

I just bought the microphone and came up with the following question:

I want to use the Microphone Array Matrix Creator with a Raspberry Pi 4B for data acquisition.
Therefore I need to be able to store the data from each microphone. That means I need a separate raw audio file from each of the 8 microphones.
Furthermore the process mentioned must be able to be programmed in Python, as this is to be executed in an existing script at regular intervals.

I found the folowing Link on your website: ReSpeaker 6-Mic Circular Array kit for Raspberry Pi - Seeed Wiki

Step 6 is explaining how to record within python. What do I have to change to get the recording of each microphone? Or am I looking on the wrong topic here?

Thanks a lot in advance,