Batch Speed Change

Apply a speed change to multiple overlays at once.

How It Works

Apply speed_multiplier to multiple overlays. target='all' for everything, 'video_only' for just videos, 'audio_only' for audio. Backend resolves IDs and computes frames.

Specifications

Category
Editor Core
Execution
instant
Credit Cost
Free
Overlay Types
video, sound, voiceover, sfx, image, text, caption, sticker
Tags
timing, duration, batch

Example Prompts

“speed up everything”
“slow down all clips”
“make all videos 2x”
“speed up the whole timeline”

Required Parameters

speed_multiplier (number)
Desired speed multiplier (2.0 = 2x faster, 0.5 = half speed)
target (string)
Which overlays to affect

Optional Parameters

user_text (string)
undefined

Use Cases for Editor Core

Speed up or slow down footage for dramatic effect in vlogs and documentaries
Split and rearrange clips to create montage sequences
Trim dead air and pauses from interview recordings

How to Get Started with Batch Speed Change

1.Open any project in the 6trim editor or create a new one.
2.Type a prompt in the AI assistant — for example: "speed up everything".
3.The Batch Speed Change result appears as a video overlay on your timeline. Drag to reposition or resize.

Frequently Asked Questions

Try Batch Speed Change Free

Type a prompt or use the toolbar. No download required.

Use Batch Speed Change

More Editor Core Tools

Change Speed
Change the playback speed of an overlay.
Slow Motion
Apply slow motion effect to an overlay.
Move Overlay
Move an overlay to a new start position on the timeline without changing its duration. Pushes neighbors on the same row.
Extend Duration
Increase an overlay's duration by a delta. Pushes neighbors on the same row.
Shorten Duration
Shorten an overlay by removing a number of seconds/frames from the end. Use this when user says 'make shorter', 'reduce duration', 'shorten by X seconds'. Do NOT use trim_to_playhead for this — trim_to_playhead is only for cutting at the playhead position.