HeyGen Lip Sync Not Matching Audio
Quick answer
Lip sync quality varies by voice and language. Try a different voice in the same language and render a short test before the full video.
Most likely fix: Switch the voice
How to fix it
Try these in order — the most common fix is first.
1. Switch the voice
- Pick another voice in the same language and render a short test clip.
Did this fix it?2. Use clean audio
- For uploaded audio, use clean WAV without noise or compression artifacts.
Did this fix it?3. Shorten and retest
- Render a short sample first to confirm sync before spending credits on the full video.
Did this fix it?4. Report to support
- If sync is badly off with several voices, send the video ID to support.
Did this fix it?
Symptoms
Mouth movement lags, drifts or looks wrong, especially in translations or non-English voices.
Why it happens
- Voice quality varies even within one language
- Translation to languages far from English
- Poor or compressed custom audio
This guide also covers
- heygen lip sync off
- heygen lip sync not working
- heygen translation lip sync
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