This feature is available on all plans.
For Freemium/Starter/Creator plan users: Dubbing minutes are deducted from your total video minute balance. You will be unable to publish videos dubbed from a YouTube link. Self serve users will not have the ability to edit dubbed translations. Freemium users will not have access to Dubbing with lip-sync.
For Enterprise users: This is a credit consumption based feature that will deduct from your credit balance. To learn more check out the What are credits, and how do they work in Synthesia? article.
If you would like discuss upgrading your plan, please contact our Synthesia Support team or use our upgrade guide.
To use AI Video Dubbing:
Go to the Video dubbing tab in the sidebar
Upload a video file by clicking or dragging it in — or paste a YouTube link
Set the following parameters:
Project name
Original language
Dub to: Select the target language(s)
Lip Sync (Starter, Creator, and Enterprise only): Toggle on to sync lip movements to the translated audio if your video includes people speaking
Video duration setting:
Choose between:
Adaptive video duration (default): Adjusts video playback to better match the length of the translated voiceover. Recommended for instructional content.
Original video duration: Keeps the original video speed, adjusting only the voiceover. Best for persuasive content where visual timing is critical.
Click Generate. A folder will be created in My videos, containing the original and dubbed version(s).
(Enterprise only) After the dubbed video is generated, you can edit translations while preserving the original meaning. To learn more about editing dubbed video translations, check out the Can I edit translations for dubbed videos? article.
Publish the versions you want to share. All published language versions are accessible via a single link using the multilingual video player.
To learn more about video dubbing, see the Video Dubbing documentation.
To learn more about dubbing credit consumption, check out the What are credits, and how do they work in Synthesia? article.
Notes:
Video dubbing is available in 32 languages.
Lipsync consumes two times the amount of credits / minutes.
Supported upload formats include:
.mp4,.mov, and.webm, with a maximum file size of 1GB or a duration of up to 2.5 hours.Maximum video resolution is 4k (3840, 2160)
We accept videos recorded at any of the following frame rates (frames per second). If your clip is recorded at a different speed, we’ll automatically convert it to the nearest one on the list:
23.98 fps
24 fps
25 fps
29.97 fps
30 fps
50 fps
59.94 fps
60 fps
For sound, we work with the following quality levels (shown in kilohertz, kHz):
8 kHz (8,000 samples/s)
16 kHz (16,000 samples/s)
22.05 kHz (22,050 samples/s)
24 kHz (24,000 samples/s)
32 kHz (32,000 samples/s)
44.1 kHz (44,100 samples/s)
48 kHz (48,000 samples/s)
96 kHz (96,000 samples/s)
YouTube upload is limited to 10 minutes per user and 2 minutes per video link. YouTube videos longer than 2 minutes will be trimmed.
If multiple language versions are published, they will all be accessible via a single link using the multilingual video player.