Voice-onset Time

Voice-onset Time



A term used in phonetics, referring to the point in time at which vocal-fold vibration starts, in relation to the release of closure. In a fully voiced plosive, for example, the vocal folds vibrate throughout; in a voiceless unaspirated plosive, there is a delay (or lag) before voicing starts; in a voiceless aspirated plosive, the delay is much longer, depending on the amount of aspiration. The amount of the delay, in relation to the types of plosives, varies from language to language.