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How do I dub a video?

Translate any video into 32 languages while retaining the original voices.

Meg avatar
Written by Meg
Updated over a week ago

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 access to Dubbing with lip-sync or the ability to edit dubbed translations.

For Enterprise users: This is a paid add on. Enterprise users can purchase minute packs. Prices vary by volume.

If you would like discuss upgrading your plan, please contact our Synthesia Support team or use our upgrade guide.

To use AI Video Dubbing:

  1. Go to the Video dubbing tab in the sidebar

  2. Upload a video file by clicking or dragging it in — or paste a YouTube link

  3. Set the following parameters:

    • Project name

    • Original language

    • Dub to: Select the target language(s)

    • Lip Sync (Enterprise only): Toggle on to sync lip movements to the translated audio if your video includes people speaking

  4. Click Generate. A folder will be created in My videos, containing the original and dubbed version(s).

  5. (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.

  6. 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 minute consumption, check out the How does minute consumption work for AI Dubbing? article.


Notes:

  • Video dubbing is available in 32 languages.

  • 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.

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