olemus
liik häälliideseid
= a type of voice interfaces

ülevaateid
https://alan.app/blog/voiceassistant-2/
https://en.wikipedia.org/wiki/Voice_user_interface
https://www.slanglabs.in/voice-assistants
https://www.linkedin.com/pulse/future-chatbots-voice-assistants-arte-merritt

näiteid
https://botpenguin.com/blogs/which-are-the-7-best-voice-assistants-of-2023

turvalisus
https://surfingattack.github.io/papers/NDSS-surfingattack.pdf
https://thehackernews.com/2020/03/voice-assistants-ultrasonic-waves.html