DaCaPo

Subtitles and Captions

Edit Subtitles in the Subtitles Tab

The Subtitles tab displays all subtitles in the active Timeline and provides track-level tools for reviewing, styling, retiming, adding, deleting, and exporting subtitles.

During playback, the currently active subtitle is highlighted in the list, making it easy to follow the subtitle track while reviewing picture, captions, and accessibility content.

What you’ll learn

  • How the Subtitles tab follows the active Timeline.
  • How OCAP, CCAP, and Sign Language content are previewed.
  • How to unlock a subtitle track for editing.
  • How to add and delete subtitle cues.
  • How to change the font and styling for the active subtitle track.
  • How to offset or convert subtitle timing.
  • How to export subtitle tracks as XML or SRT.

The Subtitles tab

The Subtitles tab displays all subtitles in the active Timeline.

Subtitles are shown in a list, which makes it possible to review the full track while working with the current Timeline.

Subtitles tab in DaCaPo showing the subtitle list

Playback synchronization

The subtitle list is automatically synchronized with playback.

During playback, the currently active subtitle is highlighted in the list.

This makes it easy to follow the subtitle sequence while checking timing and presentation against the picture.

Review OCAP and CCAP simultaneously

If the Timeline contains both OCAP and CCAP subtitles, DaCaPo allows both tracks to be reviewed at the same time.

  • OCAP subtitles are displayed in the Viewer.
  • CCAP subtitles are displayed in the CCAP Live Preview area at the bottom.

This makes it possible to check the open-caption presentation and the closed-caption content during the same playback pass.

OCAP subtitles in the Viewer with CCAP Live Preview in DaCaPo

Review Sign Language video

If the Timeline contains a Sign Language track, a Sign Language Preview is also displayed.

This allows the Sign Language video to be reviewed during playback together with the subtitle content.

Step 1

Unlock the subtitle track

Subtitle editing is available when the subtitle track is unlocked using the lock button in the Timeline header.

When the track is locked, the subtitle list can still be reviewed, but the editing controls are not available.

Add or delete subtitles

Add Subtitle (+)

Add Subtitle (+) creates a new subtitle at the current playhead position.

Delete Subtitle (-)

Delete Subtitle (-) deletes the selected subtitle or subtitles.

Edit subtitle cues in the Timeline

Subtitle tracks must be unlocked before subtitle cues can be edited directly in the Timeline.

When the track is unlocked, one or more subtitle cues can be selected directly in the Timeline.

DaCaPo supports:

  • Single selection
  • Marquee selection
  • Shift-select
  • Ctrl/Cmd-select

Move subtitle cues

Drag a selected subtitle cue along the Timeline to move it earlier or later.

Multiple selected cues can be moved together while preserving their relative timing.

Hold Shift while dragging to snap the selected cue or cues to the current playhead position. This is useful when subtitles need to be aligned precisely to a known picture or audio position.

Adjust the start or end time

Drag the in-point or out-point of a subtitle cue to adjust its start or end time.

This changes the cue duration without moving the complete subtitle event.

Edit the selected cue in the Inspector

Selecting a subtitle cue in the Timeline automatically makes it the active cue in the Subtitles and Edit Inspector tabs.

You can then edit its text, styling, and timing information without having to select the cue again.

For detailed text and row editing, see Edit Subtitles in the Subtitle Editor .

Change the track font

Choose Font… to change the font used by all subtitle elements in the active subtitle track.

After changing the font, review representative subtitles throughout the Timeline because a different typeface can affect line length and wrapping.

Style the subtitle track

Choose Styling… to change the visual appearance of the active subtitle track.

The available styling controls include:

  • Font Size
  • Font color
  • Row Distance
  • Effect type
  • Alignment
  • Effect color
  • Position
  • Effect strength

These settings apply to the active subtitle track and are useful when adjusting imported subtitle material for cinema presentation.

Subtitle styling controls for the active subtitle track in DaCaPo

Adjust subtitle timing

Choose Timing… to adjust timing for the entire active subtitle track.

Typical uses include:

  • Offsetting all subtitles by a fixed TC amount.
  • Converting subtitle timing between 24 fps and 25 fps.

Use the timing tools when the complete subtitle track needs a consistent adjustment rather than editing individual cues one by one.

For more detail about frame-rate conversion, see Convert Subtitle Frame Rates .

Export subtitles

Choose Export… to export the active subtitle track as XML or SRT.

Subtitles can be exported as:

  • A single file covering the entire composition (Timeline).
  • Separate files for each reel.

This is useful when subtitle material needs to be delivered separately, reviewed externally, or reused in another workflow.

Edit individual subtitles in the Subtitle Editor

The Subtitles tab provides track-level tools, while detailed editing of the selected subtitle is handled in the Edit tab.

Use the Edit tab when you need to change subtitle text, row properties, or the order of individual text rows.

Common questions

Why are the editing controls unavailable?

Check that the subtitle track is unlocked using the lock button in the Timeline header.

Why do I see OCAP in the Viewer but CCAP somewhere else?

OCAP is displayed in the Viewer, while CCAP is shown in the CCAP Live Preview area at the bottom.

How do I change all subtitle timings at once?

Use Timing… to offset the complete track or convert timing between supported frame rates.

How do I edit the text of a single subtitle?

Select the subtitle and use the Edit tab in the Subtitle Editor.

Manual reference: Subtitles Tab; Editing Subtitles.

Reviewed against: DaCaPo User Manual 0.9.2, July 2026.