Why does my smart speaker still mishear me — and how do companies test voice AI anyway?

A voice assistant must separate speech from room echoes, appliance noise, distance, accents, and multiple people talking—conditions that a clean studio recording misses. Treble builds acoustic simulations so developers can test how microphones and speech systems behave in many virtual rooms before building every physical setup. At home, move the speaker away from walls and televisions, retrain its voice profile if offered, and review or delete mistaken recordings in the maker’s privacy controls.