I casually listened to this at work yesterday, and his statement that the ARC Genesis mic is directional caught my attention. Anyone able to confirm or deny this?
From marketing pictures the area around the capsule looks similar to a cardioid. But a cardioid pointed at the ceiling isn't particularly useful for room measurement, so maybe that's just a style choice. Maybe it's a beamforming MEMS array, or maybe marketing really wanted to have a sticker on the microphone...