I tried connecting a ReSpeaker Mic Array v2.0 USB microphone (seems like a great candidate for STT and voice control) to my Raspberry Pi4 4GB, and noticed that the device did not appear in the kernel logs at all. I’m guessing that’s because these drivers would need to be included in the hassos buildroot build: https://github.com/respeaker/seeed-voicecard.
I may try to figure out how to rebuild hassos myself to include these drivers, but the ReSpeaker series of mics seem popular enough that others might benefit from adding support for them in the base OS so they’d be usable in HA via Almond/Ada etc.
ps. I have a separate thread in case I am just making a mistake somewhere and someone is already using a ReSpeaker mic with Hassio successfully: ReSpeaker Mic Array v2.0 USB and Hassio