Good stuff. Was looking into cheap array mics with linux drivers a few times in ...

j_s · on Oct 25, 2017

This is the useful info I've seen hardware-wise recently:

Amazon's 7-mic hardware has its own OEM program.

adrianbg · on Oct 24, 2017

Totally. You may want to take a look at the papers from CHiME4 for more along those lines:

I'm really fascinated by the whole idea of blind source separation and the fact that speech signals are "sparse" in frequency space.

We've had a similar experience looking for hardware / open source beamforming. There's a package called beamformit, but I think it's pretty old.