Welcome to the SpeechSTAR Speech and Language Therapy website! We offer a visual approach to learning about speech sounds. Most of the videos on this site are real-time animations of vocal tract movements during speech, based on recordings made with Magnetic Resonance Imaging. The aim of this video-based resource is to help you understand how consonant sounds are produced and to understand the differences and similarities between English speech sounds.


  • Half-head vocal-tract animations of:
    • The consonants of English
    • Common consonantal substitutions
    • The sounds of the IPA and extIPA
  • Videos explaining ultrasound tongue imaging and its use in therapy
  • Videos showing ultrasound tongue imaging therapy sessions

Creation of this resource

SpeechSTAR is the product of a collaboration between researchers at three Scottish Universities: the University of Glasgow, Queen Margaret University Edinburgh, the University of Strathclyde, and is funded by the Economic and Social Research Council’s (ESRC) Secondary Data Analysis Initiative (SDAI). It includes material collected with funding from the ESRC, EPSRC, AHRC, CSO, Carnegie Trust for the Universities of Scotland and Action Medical Research.

How to refer to this resource

Lawson, E., Cleland, J., Stuart-Smith, J. (2023). SpeechSTAR: a Speech Therapy Animation Resource. Glasgow: University of Glasgow. Accessed 18th July 2024. https://speechstar.ac.uk/

Licencing information

This work is licensed under CC BY-NC-ND 4.0

You can copy and distribute materials on this site in any medium or format in unadapted form only, for non-commercial purposes only, and you must give appropriate credit to the creators.

© Lawson, Cleland and Stuart-Smith