Answers.Body: <p>I don’t think you doing something wrong.</p>
  <p>My suggestion is copy the sequence to a complete new and fresh library. This should load the clips again and hopefully get rid off any possible problems in the library.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-04-02T00:07:07.157Z
Answers.LastActivityDate: 2021-04-02T00:07:07.157Z
Answers.UserDisplayName: German Dude
Body: <p>I have a project in Final Cut Pro X, that plays as I expect in the Final Cut, but when I export in to h264 there is a part where audio is playing slightly in before the video.</p>
  <p>Such part is present on the following screenshot:
  <a href="https://i.sstatic.net/2KBgh.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/2KBgh.png" alt="enter image description here" /></a></p>
  <p>At the beginning the audio is in sync. Then there is a 100x speedup, and then audio get's out of sync (I'm talking about the clips audio, not the green music). Ironically there is also a connected clip that appears slightly later, and it also has a 100x speed increase later on but that does not cause any problems. Also both clips' audio plays separately in the left and right channels, so in headphones I can hear that in FCPX some audio bits happen at the same time, while in the exported file they are out of sync…</p>
  <p>Am I doing something wrong?</p>
  
Tags: <final-cut-pro-x><sync><export>
Title: Some parts have audio out of sync after a master export
UserDisplayName: Uko
ThreadText: # Some parts have audio out of sync after a master export
  
  (Asked by: username_0 on 2021-04-01)
  
  I have a project in Final Cut Pro X, that plays as I expect in the Final Cut, but when I export in to h264 there is a part where audio is playing slightly in before the video.
  
  Such part is present on the following screenshot:
  [![enter image description here](https://i.sstatic.net/2KBgh.png)](https://i.sstatic.net/2KBgh.png)
  
  At the beginning the audio is in sync. Then there is a 100x speedup, and then audio get's out of sync (I'm talking about the clips audio, not the green music). Ironically there is also a connected clip that appears slightly later, and it also has a 100x speed increase later on but that does not cause any problems. Also both clips' audio plays separately in the left and right channels, so in headphones I can hear that in FCPX some audio bits happen at the same time, while in the exported file they are out of sync…
  
  Am I doing something wrong?
  
  **Tags:** final-cut-pro-x, sync, export
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2021-04-02. Score: 0
  
  I don’t think you doing something wrong.
  
  My suggestion is copy the sequence to a complete new and fresh library. This should load the clips again and hopefully get rid off any possible problems in the library.
  
  
  ---
  
  