https://newatlas.com/technology/uw-room-noise-cancellation/
They were silent of course but still looked and felt like a cloud of insects buzzing around his head. As well as the job they were doing, what he liked was what they said about him: here was someone important, with things to talk about, secrets to keep. He nodded at others who had crowns, their lips moving, acknowledging the bubbles of privacy and what that said about them. Silence broadcasting status, loud and clear. He picked up his coffee and walked past her desk, laughing at his own comment. Shame the drones couldn’t hide the look in his eyes.