Ripple edit vs rolling edit
A ripple trim moves everything after the edit; a rolling trim moves only the shared cut, borrowing time from one clip for the other.
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What it is
Both tools change an edit point, but they protect different things. A ripple edit trims one clip edge and shifts every later clip on that track, changing the sequence's total duration. A rolling edit moves the shared cut between two neighboring clips: one gets longer by exactly the amount the other gets shorter, so total duration stays fixed.
Use a ripple edit when a shot or pause should be shorter and everything after it may arrive earlier. Use a rolling edit when the scene timing is already locked but the cut lands on the wrong frame, such as revealing a reaction a few frames sooner without moving the next cue. Avid Media Composer makes the difference physical in Trim Mode: a single roller on one side of the cut ripples, rollers on both sides roll.
Gotcha: a ripple can knock music, captions, and graphics out of sync if their tracks are not included in the shift. A roll also needs spare frames, called handles, on both source clips. If either clip is already at its media boundary, the cut cannot roll farther.
Ask AI for it
Refine this sequence in Adobe Premiere Pro with the Ripple Edit Tool and Rolling Edit Tool. Ripple-trim dead air so downstream clips close up automatically, with Sync Lock enabled for dialogue, music, caption, and graphics tracks. Then roll each reaction-shot cut by up to 8 frames to land on the strongest expression without changing sequence duration. Preserve audio sync, existing markers, and all locked cue points, and stop at source-media limits rather than creating freeze frames.