Turn a 30-second voice memo into a vertical status video

Put a 30-second voice recording under four stills and burned captions for a WhatsApp status or any vertical feed. Timeline body and a total of about 33 cents.

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Import your voice memo, generate four stills, join them under the memo on Timeline 1.0, then burn captions: $0.3295 in total on Sume. The captions come from speech-to-text on the finished video, so you write nothing twice. This suits a quick status update from a shop owner who would rather speak than design.

Steps

  • Import the memo audio as a workspace file (POST /v1/media-imports); Timeline accepts only media.sume.com URLs.
  • Generate four stills in 9:16-friendly compositions, or use your own photos.
  • Render: the memo is audio.url, with duration_seconds equal to its length.
  • Caption the result; speech captions need audible speech, which the memo gives.

The render body

A 30-second memo split across four slots; the last slot ends with the audio.

{
  "audio": { "url": "https://media.sume.com/artifacts/artf_demo/memo.wav", "duration_seconds": 30 },
  "output": { "width": 1080, "height": 1920, "fade_out_seconds": 0.5 },
  "video": [
    { "source_url": "https://media.sume.com/artifacts/artf_demo/p1.png", "start": 0,    "duration": 8 },
    { "source_url": "https://media.sume.com/artifacts/artf_demo/p2.png", "start": 8,    "duration": 8,
      "transition": { "type": "slideup", "duration": 0.4 } },
    { "source_url": "https://media.sume.com/artifacts/artf_demo/p3.png", "start": 16,   "duration": 7,
      "transition": { "type": "slideup", "duration": 0.4 } },
    { "source_url": "https://media.sume.com/artifacts/artf_demo/p4.png", "start": 23,   "duration": 7,
      "transition": { "type": "slideup", "duration": 0.4 } }
  ]
}

Cost

Sume list price, read 2026-10-08
ItemQtySubtotal
Stills, GPT Image 2.5 low 1024x10244$0.0295
Timeline render, 30 s1$0.10
Captions1$0.20
Total$0.3295

Privacy

A voice memo can include other people's names or numbers. Listen once before you publish, and keep the original audio private in your workspace.

Getting a clean memo

Record in a quiet room, hold the phone steady, and leave half a second of silence at the end so the final slot does not clip the last word. Aim for a single clear thought; thirty seconds is about one idea. If the memo is longer, trim it with audio detach on a video or cut it with timeline audio split, then render only the segment you want. State the spine length precisely: coverage may stop at most half a second before the end.

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