In linguistics, a triphone is a sequence of three consecutive phones.1 Triphones are useful in models of natural language processing where they are used to establish the various contexts in which a phoneme can occur in a particular natural language.
References
References
- Jurafsky, Daniel; Martin, James H. (2008). Speech and Language Processing. Prentice Hall. p. 346. ISBN 978-0-13-187321-6.