Broadcast term: frame interpolation
Frame interpolation creates new frames between existing ones to raise the frame rate or slow motion down smoothly. The new frames are estimated, not generated from the prompt. From 3 source pages, read 2026-09-25; no maker pays to be listed.
Three vendors describe it: one raises smoothness to 60 FPS on paid plans, one interpolates to 120fps when upscaling, and one converts to targets from 23.98 to 120.
Interpolation can smooth motion but can also add artefacts at edges and in fast action.
For drama the usual reason to interpolate is a frame-rate mismatch with the programme, not smoothness for its own sake; a 24 fps look is often the point.
A conversion between 24 and 25 fps can also be done by speeding the programme up by four percent, the old film-to-PAL method, which avoids interpolated frames altogether.
1Vendors whose figures use it
| Tool | Figure as printed |
|---|---|
| Dreamina | Paid plans raise smoothness, with frame rate up to 60 FPS |
| HeyGen | Frame interpolation up to 120fps when a scene is upscaled |
| Runway | Enhance frame rate converts a video to 24, 25, 30, 48, 50, 60 or 120 fps, or 23.98, 29.97 or 59.94 |
Inclusion rule. Tools on the sheet whose recorded figure uses the term or its usual shorthand. Order. Alphabetical by tool name.
- Paid plan benefitsPaid plans raise smoothness, with frame rate up to 60 FPS
- FAQFrame interpolation up to 120fps when a scene is upscaledexport resolution
- Enhance frame rate endpointEnhance frame rate converts a video to 24, 25, 30, 48, 50, 60 or 120 fps, or 23.98, 29.97 or 59.94
2Adjacent terms
3How one pipeline outputs it
For a delivery question like “Frame interpolation”, SceneMixer states the following about what it produces:
16:9 landscape (SceneMixer's default) and 9:16 vertical (the usual short-drama frame), chosen per project.
SceneMixer, Seedance 2.0 in a Real Short-Drama Pipeline — “Which aspect ratios does the pipeline generate?” (read 2026-10-13)
Scene order, dialogue and beats follow the script; what the pipeline adds is coverage — which shot sizes, who is in frame, how long each shot holds.
SceneMixer, Script to Video, End to End — “How faithful is the shot list to my script?” (read 2026-10-13)