Hijacking since you're dev for a straight answer. There's mentions of multiple voice choices. Is one of them a sampling of the red queen in RE movies? I loved her dialect/voice.
Ah yes. If ever I want an AI assistant to inform me of my imminent death, I want it to be using that voice.
"Hey Alice, call an ambulance."
"You are going to die."
"Thanks Alice."
Currently you got the following choice: Pico, Mycroft, Google Standard/Wavenet, Amazon, IBM Watson
And while using one of the cloud variants might cause security concerns, keep in mind, they will only know what to speak, not why (e.g. what your input/request was)