# sc0ty/subsync

Subtitle Speech Synchronizer

Repository: https://github.com/sc0ty/subsync
Canonical: https://ross.abutalabs.com/products/subsync
Language: C++
License: GPL-3.0
License Family: copyleft
Topics: synchronization, subtitle-speech-synchronizer, subtitles, speech-recognition
Archived: true
Last push: 2024-10-01T13:47:06+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2873, "days_push": 701, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1423, forks 88 (observed 2026-08-28T04:04:41.260293+00:00)

## What it is
A C++ tool that automatically synchronizes subtitle files with movie or TV audio using speech recognition. It detects spoken audio in the video track and shifts subtitles so they align with the dialogue.

## Use cases
- fix subtitles that are out of sync with a movie
- sync subtitles downloaded for a different video release
- automatically align srt files to video audio
- resync subtitles after cutting or re-encoding a video
- batch-correct subtitle timing for a media library

## When to choose
- you have mismatched subtitles and need automatic audio-based alignment
- you want a free offline tool rather than manual subtitle timing

## When to avoid
- you need an actively maintained tool with bug fixes and support
- you need subtitle editing or translation features rather than synchronization

## Facets
- artifact type: application
- maturity: abandoned
- function: speech-recognition, video-processing
- domain: media, speech-processing
- platform: cross-platform, windows, cli
- tags: subtitles, synchronization, subtitle-sync, media-tools, video, linux, macos

## Member repositories
- sc0ty/subsync (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:41.260293+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:37:40.029882+00:00, confidence not recorded.
  - readme: https://github.com/sc0ty/subsync (fetched 2026-08-28T04:04:41.260293+00:00, sha f7c4978f441e)
- Data as of 2026-08-30T08:39:29.467469+00:00.