NeMo Forced Aligner

Demo for NeMo Forced Aligner (NFA). Upload audio/video in Tamazight and (optionally) the text spoken to generate highlighted karaoke subtitles. Now supports syncing with pre-timed SRT or LRC files and generates all subtitle formats instantly!

Input

Microphone input

Audio file upload

Video file upload (Audio will be extracted automatically)

[Optional] Upload an SRT or LRC file to constrain alignment to predefined timestamps

[Optional] The reference text. Use '|' separators to specify which text will appear together. Leave this field blank to use an ASR model's transcription as the reference text instead. (Ignored if SRT/LRC is uploaded)

Separate text on new lines

Output Video

Download Subtitle Files

Tutorial: "How to use NFA?" 🚀 | Blog post: "How does forced alignment work?" 📚 | NFA Github page 👩‍💻

Examples

Audio file upload	[Optional] Upload an SRT or LRC file to constrain alignment to predefined timestamps	[Optional] The reference text. Use '\|' separators to specify which text will appear together. Leave this field blank to use an ASR model's transcription as the reference text instead. (Ignored if SRT/LRC is uploaded)