Editing Extended Audio Descriptions (EAD) in VideoYo
Edit and fine-tune Extended Audio Description cues by adjusting timing, text, and playback, then re-synthesize your video to generate an updated EAD track with your changes.
EAD Editing Interface

Layout
The Toolbar at the top of the screen contains all the tools you need to quickly edit your Audio Descriptions. See the section below for a detailed overview of each tool.
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The Preview Window in the center of the screen lets you watch your video and listen to the Audio Descriptions as you edit.
Below the Preview Window is the Timeline, which displays the full duration of your video along with each cue. The yellow blocks are when the video has been paused to insert an EAD cue. Click and drag a cue to reposition it within the timeline.

On the right side of the screen, you'll find all of the generated Gaps, with the Gap Editor located at the bottom. Select a cue or click on the cue in the timeline to begin editing. Use the Gap Editor to modify the cue text, adjust its timing, duplicate it, or delete it.

Tool Bar
Play – Play or pause your video. You can also press the Spacebar to play and pause.
Hide Video – Hide the video and listen to the audio only.
+ Add Cue – Insert a new cue at the current playhead position.
Duplicate – Create a copy of the currently selected cue.
Delete – Remove the currently selected cue.
Undo – Reverse your most recent action(s).
Redo – Restore the most recently undone action(s).
Zoom – Zoom in or out on the timeline for more precise editing.
Fit – Adjust the timeline view so the entire video fits within the available window.
Duration and Extension - View the duration as well as the amount of time your video will be extended with the current gaps.
? - Click the question mark to see the keyboard shortcuts for the VideoYo interface.
Re-synthesize – After reviewing and editing your cues, click Re-synthesize to generate a new Audio Description track using your changes. You can re-synthesize the Audio Description track up to two times per video.
Editing a Gap
- Select a cue in the gap list or the timeline.
- Navigate below the gap list to the gap editor to edit a cue's contents.
- Select Load to apply your change and preview your cue.
Moving a Gap
If you'd like to adjust where the video pauses for a gap, click and drag the cue on the timeline or enter a time code in the gap editor.
Re-synthesizing a Video
After you have finished reviewing your cues, you must Re-synthesize if you have added, deleted, or modified any cues. Re-synthesizing generates a new Audio Description track that includes your changes.
Extended Audio Descriptions creates a new video file with EAD included. Since the video has to be paused for EAD, the overall duration will be longer than your original video.
To begin, click Re-synthesize in the top-right corner of the screen and confirm your changes.