respeaker and https://github.com/introlab/odas https://github.com/introlab/odas might be a good starting point without having to make hardware. Making the hard

respeaker and https://github.com/introlab/odas https://github.com/introlab/odas might be a good starting point without having to make hardware. Making the hardware is fairly achievable without having to do fancy things. but if you want >8 channels you'll need to make some custom interface hardware.