Ultrasound tongue imaging (UTI) uses ultrasound to form images of tongues. It has been used for speech production and linguistics research since it came into regular clinical use in the 1960s and 1970s. [1]
It is a non-invasive technique that allows researchers to view the shape, position and movements of the tongue (from root to apex) in real time during speech. [2]
UTI became popular in phonetics laboratories as ultrasound units become more portable and affordable. [1] The Ultrafest conference assembles researchers that employ UTI. Locations have included the University of Potsdam (2017), University of Hong Kong (2015), Queen Margaret University (2013), Haskins Laboratories (2010 and 2002), New York University (2007), University of Arizona (2005), University of British Columbia (2004). [3]
Uuses of UTI include:
Phonetics is a branch of linguistics that studies how humans produce and perceive sounds, or in the case of sign languages, the equivalent aspects of sign. Linguists who specialize in studying the physical properties of speech are phoneticians. The field of phonetics is traditionally divided into three sub-disciplines based on the research questions involved such as how humans plan and execute movements to produce speech, how various movements affect the properties of the resulting sound, or how humans convert sound waves to linguistic information. Traditionally, the minimal linguistic unit of phonetics is the phone—a speech sound in a language which differs from the phonological unit of phoneme; the phoneme is an abstract categorization of phones, and it is also defined as the smallest unit that discerns meaning between sounds in any given language.
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Martin J. Ball FRCSLT FRSA FLSW is Honorary Professor in Linguistics at Bangor University in Wales. Until August 2017 he was Professor of Speech-Language Pathology at Linköping University in Sweden. He holds joint Irish-UK-US citizenship. As of June 2019 he lives in Cork, Ireland.
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