Archive Dispatch Original spoken caption delivery exercise Eight-second authored archive graphic sequence at 24 fps Line 1: The archive closes at midnight. Line 2: Leave the parcel on the desk. Narration: macOS Samantha system voice at 150 words per minute Utterance audio starts at 0.5 and 4 seconds Caption intervals: 0.5-2.9 and 4-6.2 seconds Clean and burned exports share the same narration and underlying picture Burned export composites the two caption boxes into authored frames Neither MP4 contains an embedded subtitle stream Separate WebVTT was generated from the SRT with this page converter implementation No external speech or transcription service, AI video generation, HandBrake or Premiere was run Review actual words layout player mode and final encoded file