Automatic phonetic annotation & online forced aligner
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?
Autophon is closed from April 26, 2024 through May 1, 2024.
Due to a server failure, Autophon will be down until May 1 while we work to restore it from our latest backup.
Danish (DanFA 3.0)
Danish (DanFA 4.0 ⚠️ dev mode)
Norwegian - Bokmål
Swedish - Sweden
English - United Kingdom
English - North America
French - France
French - Canada
German - Germany