I've set Voice Attack up to wait for a joystick button press, listen for one command and then stop listening, mostly because of the amount of noise in the background where I am.
(I've had ships in elite , take off on autopilot , release all it's chaff then get blown up by a station when I'm afk before I realised this and set this option up).
But, when VA first starts, it sits there with the microphone permanently open, once I press the button and give it any command, it starts behaving as it should.
I was hoping it'd see the setting and mute the microphone until the button was pressed from the start.