Change video speed
2× speed and slow motion: set 0.25–4× for the whole clip, with optional pitch preservation.
After submitting, track progress in “My Works”. Please download promptly when done—files are cleared after 3 days.
Upload a video, set speed and export options.
Common video formats; same large-file direct upload path as mute and clip.
Speed
Use the slider or numeric input; the backend re-encodes with the chosen factor.
Export format
Resolution
Quality
Frame rate
Product-grade range
0.25–4× matches backend validation—slow motion through quick preview.
Export under control
Container, resolution, quality, and fps match the clip page for predictable outputs.
Fresh idempotency on changes
Changing speed, pitch option, or export chips rotates clientBusinessNo for correct mother-row semantics.
How to use
- Upload video and pick a faster or slower rate.
- Preview pacing after cloud re-encode.
- Then edit, replace BGM, or add subtitles.
Scope and limits：Speed change re-encodes. Extreme rates can drift A/V—test a short clip first.
FAQ
How do I change video speed?
Upload, pick slow or fast factor (presets on page), preview, export—for tutorial acceleration, slow motion, or rhythm edits. Pitch and time-stretch behavior follow product settings; audition when music matters.
What happens to audio when speeding up?
Speed changes often shift pitch or apply time stretch depending on mode. If original sound is unwanted, mute and add BGM. Music-heavy clips may need separate audio treatment after speed change.
Speed vs clip vs convert?
Clip chooses segment; speed chooses playback rate; convert chooses delivery format. Chain them as needed; watch duration quotas on very long sources.