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Review and refine

Step 1: Access Video Dubbing

From the dashboard, click on Translate, and then select Video Dubbing.

Step 2: Upload your video

From here, you can either:

  • upload your video file directly
  • use a link from YouTube or Google Drive

Step 3: Configure your settings

Choose either Speed or Precision. To access additional options, switch to the Advanced tab. Here you can configure settings such as:

  • Brand glossary
  • other advanced options

For the highest accuracy, you can also upload your own subtitle file in SRT or ASS format.

Step 4: Open Proofreader

Once everything looks fine, click Review and Edit. This opens Proofreader, where you can check and refine your translation before the final video is generated.

Processing may take a few minutes, depending on the length of your video.

Important: You cannot proofread or edit a translated video after it has been fully generated. The Proofreader must be used as part of the translation workflow, before you generate the final result.
If you have already completed a translation and need to make changes, your options are to:
  • start a new translation with Proofreader switched on
  • download the captions separately and edit them in a third-party tool
  • translate the video again from the beginning

Step 5: Review your translated script

Once processing is complete, your video will appear in your library. Open it to start reviewing. Next to your video, you will see the translated script. Here you can:

  • edit the text and refine the phrasing
  • select a new narration voice
  • create a custom cloned voice

We recommend previewing your video to check the pronunciation and overall flow.

Step 6: Use the additional script tools

Click the hamburger icon above the script to access additional tools. You can:

  • download your script as Excel, Translation SRT, or Original Transcript SRT
  • edit the script offline and upload it again when you are ready
  • highlight any word to view its phonetic spelling for accurate pronunciation

Step 7: Generate your final output

When you are satisfied with your script and translation, click Generate Result. Before generating, you can also choose to:

  • add captions
  • translate only the audio if you do not want lip-sync enabled

Step 8: Invite a proof-reader (optional)

If you would like a native speaker to review your work, you can hire a certified HeyGen Proofreader directly via Contra.com.

To provide access, you have two options:

Option A — Direct invite: Click Invite Proofreaders, then add their email address or copy the proofreading link.

Option B — Via Projects tab: Go to your Projects tab, ensure your video is in a folder, click the three dots next to that folder, and select Share. Enter the proofreader's email address and invite them as a proofreader.

The proofreader only needs a HeyGen account on any plan to access your project. They will only be able to see the specific folder you have invited them to — nothing else.