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HeyGen

HeyGen — User Guide

AI avatars with lip-sync—marketing and training.

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Strengths
  • Industry-leading video translation function, natural lip synchronization
  • The digital human image is highly realistic and has rich expressions
  • Supports voice cloning, retaining the original speaker’s voice characteristics
  • Batch video personalized generation, suitable for marketing automation
Best for
  • Multi-language localization translation of video content
  • Corporate training and product demonstration videos
  • Batch generation of personalized marketing videos
  • Virtual anchor and live content

Video translation and localization

Translate videos into other languages, preserving the original speaker's voice and mouth shape.

Scenario

Translate English product videos into Chinese

Prompt example 
Upload an English product introduction video, select the target language as "Chinese (Mandarin)", and turn on the "Lip Sync" option
Output / what to expect
Generate a Chinese dubbing version, the speaker’s mouth shape is synchronized with the Chinese pronunciation, the voice retains the characteristics of the original speaker, the translation quality is professional, and can be directly used in the Chinese market.
Tips

The translation effect is best on videos with standard Mandarin pronunciation. The translation quality of videos with heavy accents or too fast speech may decrease.

Scenario

Generate multiple language versions at the same time

Prompt example 
Upload the original video and choose to translate it into: English, Spanish,
French, Japanese, Korean
Output / what to expect
Once uploaded, 5 language versions are automatically generated, and each version is lip-synchronized, greatly reducing the cost of localizing multi-language content.
Tips

The batch translation feature requires a Scale subscription and is suitable for multinational enterprises that require large amounts of multilingual content.

Digital human video creation

Select a digital human image and enter a script to quickly generate a video.

Scenario

Make product introduction digital human video

Prompt example 
Select a professional-looking digital person, enter the product introduction script, select a modern office background, and select Chinese Mandarin dubbing
Output / what to expect
Generate a 2-3 minute product introduction video. The digital human explains smoothly and has natural expressions. It can be posted directly to the official website or social media.
Tips

Punctuation marks are used in the script to control the rhythm of pauses, including short pauses with commas and long pauses with periods, so that digital people can explain more naturally.

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