Can't complete Lip Sync

Hi,

This is a known issue some users are currently facing with CapCut’s Lip Sync feature, especially on desktop and with still images or pre-recorded audio. Here's a step-by-step guide to troubleshoot and fix the issue:

Common Reasons for Lip Sync Failure in CapCut:

• Internet Connection Issues: CapCut's AI features, including Lip Sync, rely on cloud processing. A weak or unstable internet connection can interrupt this process, causing it to fail or get stuck.
• CapCut Server Issues: Sometimes, the problem might not be on your end but with CapCut's servers experiencing high traffic or maintenance.
• Insufficient Credits: Lip Sync, especially with "Vivid" or for longer audio, consumes "credits" in CapCut. If you run out of credits, the generation will fail. CapCut replenishes credits monthly, but you can also purchase more.
• App Glitches/Bugs: CapCut can have temporary glitches.
• Outdated App Version: An older version of CapCut might have bugs that have been fixed in newer updates.
• Corrupted Files: If your pre-recorded monologue audio or the video/still frame file is corrupted, it can cause issues during processing.
• Hardware Limitations (for longer videos/complex tasks): While you mentioned still frames, for longer videos, your device's processing power and RAM can play a role.
• Mismatched Frame Rates/Codec Issues (less common for still frames, but possible for videos): If you're working with a video, mismatched frame rates between the video and audio, or incompatible codecs, can lead to syncing problems.

Troubleshooting Steps:

1. Check Your Internet Connection:

   • Lip Sync uses CapCut’s cloud-based AI processing, so even a momentary drop can cause it to fail. Make sure you’re on a stable, high-speed connection.
   • Ensure you have a strong and stable Wi-Fi or mobile data connection.
   • Try switching between Wi-Fi and mobile data to see if one works better.

2. Check CapCut Credits:

   • Go to the Lip Sync feature in CapCut and see how many "credits" you have left. If you're low, this is likely the cause.
   • Consider purchasing more credits if you need to use the feature extensively before your monthly replenishment.
3. Try with Different Inputs
   • To isolate the issue:
     • Try a shorter audio clip (5–10 seconds)
     • Use a video instead of a still image (even a 1-second clip may work better)
     • Avoid overlapping edits or filters on the clip before applying Lip Sync

4. Restart CapCut:

   • Completely close the CapCut app and then reopen it. This can often resolve minor glitches.
5. Log Out and Back In
   • Sometimes, authentication glitches interfere with cloud-based AI tools like Lip Sync:
     • Log out of CapCut and back in
     • Try again with a fresh project

6. Clear CapCut Cache:

   • Go into your device's settings (for mobile) or CapCut's settings (for desktop) and clear the app's cache. This can remove corrupted temporary files that might be causing issues.
      
     • On Android: Settings > Apps > CapCut > Storage > Clear Cache.
     • On iOS: Offload App (this keeps data but removes the app, then reinstall) or delete and reinstall (which removes data, so back up projects if needed).
     • On Desktop: Look for a "Clear Cache" option within CapCut's settings or preferences.

7. Update CapCut:

   • Make sure you are running the latest version of CapCut. App updates often include bug fixes and performance improvements. Check your app store (Google Play Store, Apple App Store) or CapCut's website for updates.

8. Try a Simpler Project:

   • Create a brand new project with just a single, very short still frame and a very short monologue. See if the Lip Sync works on this minimal setup. This helps determine if the issue is with your specific project or a more general problem.

9. Re-import Audio/Still Frame:

   • Delete the current audio and still frame from your CapCut project and re-import them. Sometimes, the initial import can have issues.

10. Try a Different Audio Format:

    • If your pre-recorded monologue is in an unusual audio format, try converting it to a common format like MP3 or WAV and then re-importing.

11. Try a Different Still Frame/Video:

    • If you're using a specific image, try a different one to rule out any issues with the image itself (e.g., extremely low resolution, unusual aspect ratio).
12. Test in Mobile App
    • If you were using CapCut PC, try running the same Lip Sync on the CapCut mobile app (which sometimes works even when the desktop version fails).

13. Check Server Status

    • Look for official announcements from CapCut on their social media channels. You will get updates of ongoing issues or planned maintenance.
    • CapCut's Lip Sync (AI features like “Vivid Talking Face”) may be temporarily down or overloaded
      • You can check unofficially via:
        • https://downdetector.com/status/capcut
        • @capcut" target="_blank" rel="noopener">CapCut’s official TikTok account

14. Report the Issue to CapCut Support:

    • If none of the above steps work, consider reaching out to CapCut's official support. Provide CapCut support with details about your device, CapCut version, the specific steps you're taking, and the error message (if any).
    • Or Open CapCut > Go to Settings > Help > Report a Problem

By systematically going through these steps, you should be able to identify and resolve the problem with Lip Sync in CapCut.