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Resources / Edit a video

Change timing and sound on the Card timeline

Remove a Hold, mute one line, cut the start of a shot, and keep the voice in time with the mouth.

Reviewed 2026-11-12

The Card timeline shows the shots, the voice lines and the sound effects of one card, side by side in time. Moving, cutting and the volume of a line cost no credits. The changes go in your video file when you render again.

Open the Card timeline

  1. Open the video in the editor: in My Videos, select Edit.
  2. Select Timeline at the top of the editor, then This card.
  3. Pick the card in the card list at the left.

Move the pointer over a block to see its buttons. A tooltip on each block says what it is and how to change it.

Remove or change a Hold

A Hold is a pause in the picture, shown as a block with an hourglass on the shots row. Its tooltip gives its length, for example Hold · 5.2s · drag the edge to change, × to remove.

  • Remove it: move the pointer over the Hold and select × (tooltip Remove this hold).
  • Make it shorter or longer: drag its right edge. The shots and lines after it move with it.
  • Add one: select + between two shots on the shots row, then Add a 1s hold.

Close the gap after you delete a line

When you delete a voice line, the shots and the other lines stay where they are. The card keeps the time of that line, with no voice in it.

  • To make the card shorter, drag the right edge of the shot in that place to the left. The shots and lines after it move up.
  • If a Hold fills the place, remove it with ×.

A Silence block at the end means that the voice runs past the last shot. Add a shot or a Hold to fill it.

Make one line quieter or mute it

A voice line has no Mute button. Its level button does both.

  1. Move the pointer over the line and select the speaker icon at its top. Its tooltip gives the line's volume in percent.
  2. Drag the slider. It goes from 0% to 100%. At 0% the line is muted, and the tooltip adds Muted.

The change is for that line only. A sound effect block has a level button and a Mute sound effects button.

Cut the start of a shot

  1. Move the pointer over the shot on the shots row.
  2. Drag its left edge to the right, past the moment that must not show. The left edge moves only on a shot that has a video.
  3. To cut the end, drag the right edge to the left.

The shots and lines after it move up, so the card gets shorter. While a shot is being animated, you cannot change its length. Then select Export and Render video to put the cut in your video file. See Download and export your video.

When the voice is early or late for the mouth

On a shot with lip sync, the shot and its line are one pair: This shot is lipsynced to this line — they move together. When you drag one, the other moves too. So you cannot slide the voice under the mouth on the timeline.

  • To keep the mouth in time, do not change the words or the audio of a lip-synced line, and do not delete it. The editor asks first: it says that the lip-synced video then needs a new take. Select Cancel to keep it.
  • If a change put the voice out of time, open History on the card and select Undo on that change. Undo is free. See Add, move, and remove shots and cards.
  • If the shot has a Voice switch, select Original. That voice was made together with the mouth. See Lip sync: when mouths move with the words.
  • Otherwise, make the mouth again. In the Shots view, select Re-animate on the shot's video, choose With lip sync and the line, and select Re-animate. The price shows on the button.

Related guides

  • Why a video has still images
  • Download and export your video
  • Add, move, and remove shots and cards
  • Change words, captions, and voices after generation
  • Add a character, location, or object to a video you made
  • Fix one shot
  • Animate a storyboard
  • Use your own images in a video
  • Upscale a video to a higher resolution
  • Remove the LongStories watermark
  • Contact support
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