Automatic measurement of positive and negative voice onset time

Katharine Henry, Morgan Sonderegger, Joseph Keshet

Research output: Contribution to journalArticlepeer-review

Abstract

Previous work on automatic VOT measurement has focused on positive-valued VOT. However, in many languages VOT can be either positive or negative ("prevoiced"). We present a discriminative algorithm that simultaneously decides whether a stop is prevoiced and measures its VOT. The algorithm operates on feature functions designed to locate the burst and voicing onsets in the positive and negative VOT cases. Tested on a database of positive- and negative-VOT voiced stops, the algorithm predicts prevoicing with >90% accuracy, and gives good agreement between automatic and manual measurements.
Original languageEnglish
Journal13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
Volume1
StatePublished - 1 Dec 2012

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