The Video Preview panel plays a task's source video or audio file next to your translation, with the subtitle track overlaid live from your current segments. It's built into the Editor's Preview panel, so you don't need to leave the segment list to check how a line lands against the picture or the timing.
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💡 Who is this for? This guide is for Vendor working on a subtitle file (.srt, .vtt, .ass, or .ssa) that has a video or audio file attached to it.

Video Preview needs two things to actually show anything: your task's source file has to be a subtitle format (.srt, .vtt, .ass, or .ssa), and a Project Manager has to have already attached a video or audio file to that same Work Unit (under the project's Reference Files > Media Files section). If either piece is missing, the panel still opens — it just shows "No media file is associated with this work unit yet" instead of a player. That's not something you can fix from your side; ask your Project Manager to attach the file.

Open your task in the Editor as usual. The Preview panel on the right is collapsed by default — click the eye icon in the top bar to show it, then use the panel's own dropdown to switch its mode to Video Preview.

This dropdown lists the same preview modes for most file types — Video Preview is one of the default options, not something that only appears for video files. If your task's actual file has nothing attached, selecting it just shows the "no media file" message described above instead of a player.

Once a media file is attached, the panel loads it automatically — there's no separate "Load" or "Preview" step to trigger first. The player shows the file name and its upload date across the top, with a Refresh button if you ever need to reload it.

The player uses your browser's own video controls, so volume, fullscreen, playback speed (from the controls' overflow menu, on browsers that support it), and picture-in-picture all work the normal way you'd expect from any web video.

Your subtitles are overlaid on the video as captions as soon as they're loaded, and update automatically a moment after you edit a segment — you don't need to manually refresh to see a change reflected. If a segment's target is still empty, the caption falls back to showing the source text instead of a blank caption.

Clicking a segment in the list jumps the player to that line's timestamp, whether the video is playing or paused — a fast way to check a specific line against the picture without scrubbing manually.

A Captions ready pill appears once subtitles have loaded; the small gear icon next to it opens a menu to adjust the caption size, text color, and background — a display preference for reading comfort, not something that changes the exported file.