Automatic phonetic annotation & online forced aligner

Icon Autophon (beta)

What the app does

Autophon (beta) is a prototype web app that offers free online forced alignment, transforming an audio file and its corresponding transcript into a time-aligned phonetic annotation readable in Praat. Forced alignment refers to the process by which a computational model identifies the time intervals in the audio that contain each phonetic segment. Currently, Autophon utilizes The Montreal Forced Aligner 1.0 for its backend with language-specific models trained on both read-aloud and spontaneous speech. Users can access detailed guides by selecting a language from the list on the right. How does it work?

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Name Language Tiers Size MB Words Missing Words Last status