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Add karaoke subtitle burning example to README#128

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alexkroman merged 1 commit into
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claude/nice-darwin-gb6hbi
Jun 12, 2026
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Add karaoke subtitle burning example to README#128
alexkroman merged 1 commit into
mainfrom
claude/nice-darwin-gb6hbi

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Summary

Added a new usage example to the README demonstrating how to burn karaoke-style subtitles into a music video using the Assembly CLI with ffmpeg.

Changes

  • Added a new example section showing how to generate SRT subtitles with short line lengths (--chars-per-caption 24) that sync with vocal timing
  • Included ffmpeg command demonstrating subtitle rendering with custom styling (cyan color, larger font size)
  • Added note about alternative soft-subtitle approach using ffmpeg's -f srt -i pipe: for non-destructive subtitle tracks

Details

The example showcases a practical workflow for creating karaoke videos:

  1. Transcribe video to SRT format with character limits to keep lines short
  2. Use ffmpeg's subtitles filter to burn styled captions into the video
  3. Alternative approach mentioned for creating toggleable soft subtitles without re-encoding

https://claude.ai/code/session_013y928a4tVJdR5qUaK6CFoH

Show how to generate karaoke-style captions with -o srt /
--chars-per-caption and burn them into a video with ffmpeg,
noting the pipe-based soft-subtitle alternative.

https://claude.ai/code/session_013y928a4tVJdR5qUaK6CFoH
@alexkroman alexkroman enabled auto-merge June 12, 2026 21:01
@alexkroman alexkroman added this pull request to the merge queue Jun 12, 2026
Merged via the queue into main with commit 2cc701f Jun 12, 2026
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@alexkroman alexkroman deleted the claude/nice-darwin-gb6hbi branch June 12, 2026 21:09
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2 participants