I was messing around with HAL microphone VR last week and ran a mic from the HA server to the living room. It worked decently when I was the only one home. However, when my kids started practicing piano, HAL went crazy. Every 10 seconds, it would think its attention word was called - despite attempts to adjust the selectivity higher. Not only that, but once the piano had HAL's attention, it was able to tell it to "set the mode to normal" and "turn on nook light" and "good bye." Needless to say, the microphone has been disconnected.