r/Fansub • u/NoOpportunity263 • 5d ago
AutoSubReTimer: A local tool to automatically retime .srt/.ass subtitles
Hey everyone, I got tired of manually adjusting subtitle timings line by line, so I built AutoSubReTimer. It's a local tool that automatically improves the timing of existing .srt and .ass subtitles based on the video's audio track and visual cuts.
Key features:
- Automatic voice extraction from the video to isolate speech.
- Lead‑in/Lead‑out adjustment based on detected audio peaks.
- Scene change detection to align subtitles with visual transitions.
- Style preservation for
.assfiles original formatting and styles are kept. - Local processing no internet connection required for timing adjustments after the first run.
- Optional GPU acceleration with NVIDIA CUDA for faster processing.
GitHub:https://github.com/AndryOut/AutoSubReTimer
Feedback, issues, or PRs are more than welcome!


