Frame rate is the number of frames shown each second. Higher frame rates can make motion look smoother and provide useful detail for fast action, but they usually require more data or a different bitrate allocation.
Preserve the intended motion
Choose frame rate based on the source and content. Converting frame rates can duplicate or drop frames, which may look uneven.
Budget for more frames
At the same bitrate, a higher frame rate gives the encoder less data per frame on average. At higher bitrate it can increase file size. The exact result depends on codec and encoder.
Check playback judder
Inspect pans and moving objects at normal speed. A paused preview cannot show cadence problems or motion judder.
A practical checklist
- Check the source frame rate and destination guidance.
- Avoid changing it without a reason.
- Export a short motion-heavy sample.
- Watch it on the expected playback device.
Common mistakes to avoid
- Assuming more frames always looks better.
- Reducing frame rate without checking motion.
- Comparing bitrate settings without noting frame rate.
Questions people ask
Does doubling frame rate double file size?
Not necessarily. The encoder and bitrate settings affect actual size, but more frames generally increase the data needed for comparable detail.
Can I convert 60 fps to 30 fps?
Yes, but frames are dropped or blended. Check that movement still looks natural.