Ultrasound technology enables silent speech communication

Researchers have explored silent speech using ultrasound imaging. The technique captures mouth movements without audible sound. Ultrasound transducers record high‑frequency vibrations. Machine‑learning algorithms translate the signals into text. The approach could aid users with speech impairments. It offers a privacy‑preserving alternative to microphones. Early prototypes show promising accuracy in controlled tests. Further development aims to improve robustness in real‑world settings.