NeMo Forced Aligner and its application to word alignment for subtitle generation

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We present NeMo Forced Aligner (NFA): an efficient and accurate forced aligner which is part of the NeMo conversational AI open-source toolkit. NFA can produce token, word, and segment-level alignments, and can generate subtitle files for highlighting words or tokens as they are spoken. We present a demo which shows this functionality, and demonstrate that NFA has the best word alignment accuracy and speed of alignment generation compared with other aligners.


Elena Rastorgueva (NVIDIA)
Vitaly Lavrukhin (NVIDIA)
Boris Ginsburg (NVIDIA)

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