I love working with the voice system, however it makes sense to me at least that you should have an option to enable a wake word. that way you can leave the mic system ready always and discarding anything that does not have the wake word if enabled.
This way a user can choose options rather than having it auto respond every conversation.
just my thoughts as I work on my VIO on something that is missing from Chatgpt which would be wonderful 
I think about this literally every other day when I use this feature.
It’s so annoying that it continues listening to you when after a session of talking to you talk to a real person sitting next to you and it thinks you’re still talking to it.
Or it likes to do that thing where it thinks environment sounds are some sort of affirmation or something and it continuously repeats you’re welcome.
This is basically the equivalent of designing the world’s sleekest most modern car with the fastest engine, incredible ergonomics and not putting any door handles.