Upload custom soundtracks

You can now upload custom soundtracks and use them in your videos.

See what Synthesia can do for you

You can now upload custom soundtracks, and use them in your videos.

Enterprise

Keep layouts looking polished for your translated videos

Translate videos without text overflow—translations adapt to each text box, and long strings scale down to keep your slides looking polished.

8/21/26

Improvement

Dub multiple videos at once with bulk dubbing uploads

Upload and dub up to 10 videos in one go—set languages and options once, then let every file process in the background.

8/21/26

Editor

More control in Create with AI

Set custom duration, aspect ratio, and visual references when generating B-roll videos and images.

8/19/26

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