Video and audio
Video and audio files become playable cards on the canvas. Audio cards draw a real waveform and show cover art, and only one plays at a time so a board full of takes never becomes a wall of noise. Free accounts cap video at 30 MB and audio at 50 MB; Creator removes both caps.
Both play in place on the canvas. No lightbox, no separate player window — the clip is a card among the reference stills it belongs with.
Video
A video card plays inline. Move it, resize it, group it and comment on it like anything else.
Free accounts cap video at 30 MB. That is enough for a reference clip or a cut-down, not for a full-resolution master. Creator removes the cap and handles very large files by uploading them in parts.
Audio
Audio cards do more than provide a play button:
- A real waveform, drawn from the file — so you can see where the loud part is before playing it
- Cover art, when the file carries it
- Standard transport controls
Only one audio card plays at a time across the whole board. Starting a second stops the first. On a board holding a dozen takes of the same cue, this is the only behaviour that makes sense.
Free accounts cap audio at 50 MB.
Formats
Whatever the browser can play. H.264 in an MP4 container, and MP3 or WAV, are the reliable choices.
A file the browser cannot play still uploads — it becomes a file card with a download, rather than failing.
What this is not
Clusters plays media. It does not edit it: no trimming, no cutting, no adjusting audio levels. Do that in your editor and upload the version you want people to see.
The photo adjustments available on image cards have no video equivalent.
Storage
Media counts against your storage quota like everything else — 100GB on Creator, with the meter in Settings → Billing. Video is usually what fills it.
Frequently asked questions
Why does starting one audio card stop another?
Deliberate. Boards commonly hold a dozen takes, and having several play over each other is never what someone wanted. Playback is exclusive across the board.
Can I trim a clip?
No. Clusters plays media, it does not edit it. Trim in your editor and upload the version you want to show.
What formats work?
Whatever the browser can play — H.264 MP4 and MP3 or WAV are the safe choices. An unplayable file still uploads and becomes a downloadable file card.
Machine-readable: /docs/files/video-and-audio.md · /llms.txt