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Section: New Software and Platforms

ASTALI

Automatic Speech-Text Alignment Software

Keyword: Speech-text alignment

Functional Description

ASTALI is a software for aligning a speech signal with its corresponding orthographic transcription (given in simple text file for short audio signals or in .trs files as generated by transcriber for longer speech signals). Using a phonetic lexicon and automatic grapheme-to-phoneme converters, all the possible sequences of phones corresponding to the text are generated. Then, using acoustic models, the tool finds the best phone sequence and provides the boundaries at the phone and at the word levels. ASTALI is available through a web application, which makes the service easy to use, without requiring any software downloading. This year, the integration of the web application on the ORTOLANG platform has been finalized.