{
  "checkedOn": "2026-10-25",
  "browser": "Chrome desktop; browser version not recorded",
  "accountScope": "Existing personal signed-in accounts; exact subscriptions were not independently confirmed. No purchase or trial was started. These results do not establish entitlement on a newly created Free account.",
  "protocol": "Four unchanged 3:2 AI still-life pictures, four seconds each, followed by a four-second music-credit card. Complete pictures fit a white 16:9 canvas; hard cuts; same first 20 seconds of Carefree; no narration.",
  "privacyScope": "Project access observed, not cloud retention or deletion tested. No public project links or invitations created.",
  "results": [
    {
      "tool": "canva",
      "file": "slideshow-comparison-canva.mp4",
      "bytes": 1593379,
      "sha256": "a24df4af66ab06e7da44d62f37680efca8fd9b7ca51afd4affae597118a08bff",
      "width": 1920,
      "height": 1080,
      "videoSeconds": 20,
      "fps": 30,
      "decodedFrames": 600,
      "sceneStartFrames": [
        0,
        120,
        240,
        360,
        480
      ],
      "unexpectedSceneFrames": 0,
      "visibleWatermarkInReviewedScenes": false,
      "audio": {
        "codec": "AAC",
        "sampleRate": 48000,
        "channels": 2,
        "decodedComparisonSampleRate": 16000,
        "sourceSamples": 320000,
        "exportSamples": 320171,
        "bestOffsetSamples": 0,
        "normalizedCorrelation": 0.9998013382243396,
        "estimatedGain": 0.9974465298236644,
        "alignedResidualSnrDb": 34.0072625984006,
        "rmsDbfs": -21.554136444234345,
        "peakDbfs": -5.045923397879458,
        "scope": "Decoded waveform comparison and signal measurements; no claim of ordinary-volume human listening."
      },
      "evidenceScope": "Saved native MP4; all frames classified for scene timing, five complete scene representatives visually reviewed, soundtrack decoded and compared with supplied excerpt. No ordinary-volume human listening or export-speed ranking claimed."
    },
    {
      "tool": "clipchamp",
      "file": "slideshow-comparison-clipchamp.mp4",
      "bytes": 2361253,
      "sha256": "b2e136ea2437f452f714a80c5afdb5c4026d899fdf553da490e885e4ec5e181d",
      "width": 1920,
      "height": 1080,
      "videoSeconds": 20,
      "fps": 30,
      "decodedFrames": 600,
      "sceneStartFrames": [
        0,
        120,
        240,
        360,
        480
      ],
      "unexpectedSceneFrames": 0,
      "visibleWatermarkInReviewedScenes": false,
      "audio": {
        "bestOffsetSamplesAt16000Hz": 336,
        "normalizedCorrelation": 0.9961280766901248,
        "estimatedGain": 0.9849273352057786,
        "rmsDbfs": -21.630285341616474,
        "peakDbfs": -5.276483298426175,
        "scope": "Decoded waveform measurements, not a claim of ordinary-volume human listening."
      },
      "evidenceScope": "Saved native MP4; all frames classified for scene timing, five complete scene representatives visually reviewed, soundtrack decoded and compared with supplied excerpt. No ordinary-volume human listening or export-speed ranking claimed."
    },
    {
      "tool": "adobe",
      "file": "slideshow-comparison-adobe.mp4",
      "bytes": 4651443,
      "sha256": "5b3c2a5b05ecb62fc2b9f24d53d8178a23272ac174593cefa2ef54d892c73839",
      "width": 1920,
      "height": 1080,
      "videoSeconds": 20,
      "fps": 30,
      "decodedFrames": 600,
      "sceneStartFrames": [
        0,
        120,
        240,
        360,
        480
      ],
      "unexpectedSceneFrames": 0,
      "visibleWatermarkInReviewedScenes": false,
      "audio": {
        "bestOffsetSamplesAt16000Hz": 341,
        "normalizedCorrelation": 0.993011183152123,
        "estimatedGain": 0.9921053763395962,
        "rmsDbfs": -21.541581371600294,
        "peakDbfs": -5.001255745035701,
        "scope": "Decoded waveform measurements, not a claim of ordinary-volume human listening."
      },
      "evidenceScope": "Saved native MP4; all frames classified for scene timing, five complete scene representatives visually reviewed, soundtrack decoded and compared with supplied excerpt. No ordinary-volume human listening or export-speed ranking claimed."
    }
  ]
}