Commentary: Visual Feedback of Tongue Movement for Novel Speech Sound Learning

Abstract

Access to visual information during speech is useful for verbal communication because it enhances auditory perception, especially in noise (Sumby and Pollack, 1954). Until recently, visual feedback of the speaker’s face was possible only for the visible articulators (the lips), but newcomputer-assisted pronunciation training (CAPT) systems have created a kind of “transparent” oral cavity that permits us to look at our own tongue movements during articulation.