{
  "id": "slides-to-narrated-presentation-evidence",
  "version": "1.0.0",
  "dateModified": "2026-10-15",
  "url": "https://workflows.dubspeak.com/cases/slides-to-narrated-presentation/evidence.json",
  "retrieval": {
    "canonicalUrl": "https://workflows.dubspeak.com/cases/slides-to-narrated-presentation/evidence.json",
    "date": "2026-10-15",
    "version": "1.0.0"
  },
  "capability": "https://workflows.dubspeak.com/capabilities/narrated-presentation.json",
  "case": "https://workflows.dubspeak.com/cases/slides-to-narrated-presentation/",
  "title": "From Slides to a 5-Minute Narrated Conference Presentation",
  "anonymized": true,
  "observedFacts": {
    "type": "fresh_local_file_audit",
    "date": "2026-10-15",
    "performedBy": "The owner's local assistant, on the owner's behalf, on the actual final deliverables",
    "performedByThisWebsite": false,
    "facts": {
      "deck": {
        "format": "PPTX",
        "slides": 19,
        "slideTransitionTimingsTotalMs": 300000,
        "zipIntegrity": "ok"
      },
      "videos": [
        {
          "language": "en",
          "container": "MP4",
          "videoCodec": "H.264",
          "audioCodec": "AAC",
          "width": 1920,
          "height": 1080,
          "fps": 30,
          "frames": 9000,
          "videoDurationSeconds": 300.0,
          "audioDurationSeconds": 300.0,
          "containerDurationSeconds": 300.0
        },
        {
          "language": "zh",
          "container": "MP4",
          "videoCodec": "H.264",
          "audioCodec": "AAC",
          "width": 1920,
          "height": 1080,
          "fps": 30,
          "frames": 9000,
          "videoDurationSeconds": 300.0,
          "audioDurationSeconds": 300.0,
          "containerDurationSeconds": 300.0
        }
      ],
      "hashesMatchFinalQaRecord": true
    },
    "statements": [
      "Final PPTX: 19 slides; slide transition timings sum to 300,000 ms; ZIP integrity check OK.",
      "English and Chinese MP4: H.264 video / AAC audio, 1920×1080, 30 fps, 9,000 frames.",
      "Video stream, audio stream and container duration are each exactly 300.000 s in both MP4s.",
      "File hashes match the existing final QA record."
    ]
  },
  "productionRecordFacts": {
    "type": "production_record",
    "rechecked": false,
    "note": "Taken from the project's production notes; not re-checked in the fresh audit.",
    "facts": {
      "narratedSlides": 17,
      "silentSlides": 2,
      "pauseBeforeNarrationSeconds": 1,
      "embeddedMediaKept": true,
      "pronunciationFixes": true,
      "logoFix": true,
      "timingQa": true,
      "paidTtsUsed": true,
      "humanReviewAndMultipleRevisions": true
    },
    "statements": [
      "17 slides carry narration; 2 slides are silent.",
      "A 1-second pause precedes narration on each narrated slide.",
      "Embedded media in the deck was kept.",
      "Pronunciation fixes, a logo fix and timing QA were done during production.",
      "Paid TTS was used. Human review and multiple revisions were part of the production process."
    ]
  },
  "unknowns": {
    "cost": null,
    "labor": null,
    "accuracy": null,
    "clientAcceptance": null,
    "conferenceAcceptance": null,
    "revenue": null,
    "speedup": null
  },
  "unknownNotes": {
    "cost": "Exact cost (paid TTS was used, so it was not free)",
    "labor": "Human hours spent",
    "accuracy": "Overall narration accuracy",
    "clientAcceptance": "Whether the client accepted the result",
    "conferenceAcceptance": "Whether the conference accepted it",
    "revenue": "Revenue",
    "speedup": "Any speed-up factor versus doing it by hand"
  },
  "privateArtifacts": {
    "availability": "private_not_published",
    "items": {
      "sourceSlides": "private",
      "script": "private",
      "voice": "private",
      "outputPptx": "private",
      "outputVideos": "private"
    },
    "mediaExcerpt": "Excerpt pending permission",
    "publicReproducibleProof": false,
    "metadataIsSummary": true
  },
  "sourceLimitations": [
    "Exactly one owner-verified project is documented. Nothing here guarantees support for other page counts, durations or languages.",
    "The raw slides, script, voice and output files are private and are not published.",
    "The metadata is a summary, not public reproducible proof. A third party cannot re-run or re-check it from this site.",
    "The fresh file audit was performed by the owner's local assistant on the owner's behalf; this website did not run the project.",
    "Production-record facts were not re-checked in the fresh audit.",
    "Hashes of the private files are not published. Any hash in a release manifest is a document integrity hash only and proves nothing about an outcome."
  ]
}