Yeah, likely implemented in a hurry, but Faraday cages don't solve all. Remember that wire is a thing. Turning up the music and speaking quietly in a small grou

Yeah, likely implemented in a hurry, but Faraday cages don't solve all. Remember that wire is a thing. Turning up the music and speaking quietly in a small group may be lo-tech, but it works. You'll need a widely spaced microphone array with more microphones than there are loudspeakers at the very least to separate the music from the speech. That's easier to do when you don't have to worry about wiring, but it's still hard.