Fact · Voice and AI
92percent
In the 2018 AlterEgo paper, a wearable that reads silently mouthed words reached a median word accuracy of 92 percent in its user studies.
Checked against its source on October 17, 2026
In the source's own words
“We demonstrate robustness of the system through user studies and report 92% median word accuracy levels.”
AlterEgo: A Personalized Wearable Silent Speech Interface, Arnav Kapur et al., 23rd International Conference on Intelligent User Interfaces (IUI 2018), 2018, Abstract.
Open the original- What it measures
- AlterEgo is a wearable silent speech interface, in which the user silently mouths words and the system recognizes them without any sound being made.
- What it does not show
- The abstract does not state how many people took part or how large the vocabulary was. It is a research prototype tested in user studies, so the figure does not show accuracy for open conversation.