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Make SRT subtitles from a recording with whisper.cpp and guard against phantom text on silence
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What this guide covers
For editors who want local subtitles from their own audio. You end with an SRT file from the whisper.cpp command-line tool and a short list of switches for input-format problems and invented text on silent or musical stretches. Based on the project READMEs; the commands were not run.
More about this guide
Guide ID: art_01M6TV3H7WDF5R76EETAVQ6VFD
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Guide title
Make SRT subtitles from a recording with whisper.cpp and guard against phantom text on silence
Coverage
For editors who want local subtitles from their own audio. You end with an SRT file from the whisper.cpp command-line tool and a short list of switches for input-format problems and invented text on silent or musical stretches. Based on the project READMEs; the commands were not run.
Example
An interview recording is converted to 16 kHz mono WAV and transcribed with the base English model to an SRT file; the file names and line-length value are illustrative and were not run.
Useful starting points
- Play the audio next to the finished subtitles and check a minute at the start, middle and end for dropped or made-up lines.
- On silent or music-heavy audio, set the language explicitly; the language detector can pick a language at random on non-speech sound.
- If memory runs out or it is too slow, choose a smaller or quantized model.
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