A listing walkthrough in English and Spanish from one silent video
Narrate one silent walkthrough twice, with two text-to-speech tracks at $0.0475 per 1,000 characters, then join each with captions. About $0.35 a language.
One silent walkthrough video can carry two languages if you make two narration tracks and join each with Timeline. At $0.0475 per 1,000 characters of text-to-speech, a 600-character script is $0.0285, and the render and captions bring a finished 60-second version to about $0.34 per language.
Start with the silent clip of the property. Write the English script, translate it, and keep both to a similar length so one cut fits both.
The cost per language
For a 60-second walkthrough with a 900-character script per language, using Sume list rates:
| Step | Rate | Cost |
|---|---|---|
| Text-to-speech, 900 characters | $0.0475 per 1,000 | $0.043 |
| Timeline render, 1 minute | $0.10 per minute | $0.10 |
| Burned captions | $0.20 per job | $0.20 |
| Total per language | $0.343 |
How the steps fit
Generate each track and read its duration. Then send a Timeline request with the silent video in video[] and the narration as the audio spine. Use POST /v1/timeline-1.0/plan first: it is unbilled and shows whether the pieces fit. Finally, burn captions in the viewer's language with the captions endpoint.
Spanish usually runs longer than English by a noticeable amount, so check the second track against the video length before you render, and trim the script and not the picture.
Review before you post
Have a native speaker read the translation. A listing video states facts about a property, and a wrong word in a caption is worse than no caption.
Sources
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