I’ve run into this exact conflict between Logic Pro and Quick Look before—here are some practical, tested steps to resolve it:

• Restart Logic Pro fully
  Logic’s audio engine can sometimes lock up system audio resources, preventing Quick Look from accessing them. Quit Logic completely (use Cmd + Q or right-click the dock icon and select Quit), wait 10 seconds, then relaunch it. This often clears up the immediate conflict right away.

• Reset Quick Look’s cache
  Corrupted cache files can break Quick Look’s audio playback functionality. Open Terminal and run this command to reset the cache:

  qlmanage -r cache
  

  After running it, restart your Mac to let the cache rebuild properly.

• Adjust Logic’s audio device settings
  Logic might be holding exclusive control over your default audio output device. Head to Logic Pro > Settings > Audio, then:

  1. Switch your output device to a different option (e.g., "Internal Speakers" if you were using an external interface)
  2. Apply the change, then switch back to your preferred device
     This forces Logic to release any locked audio session, allowing Quick Look to use the device again.

• Update your software
  Outdated versions of Logic Pro or macOS often have compatibility bugs that cause this kind of issue. Check the App Store for pending Logic Pro updates, and go to System Settings > General > Software Update to ensure your macOS is on the latest stable release.

• Verify Quick Look works independently
  First confirm that Quick Look plays audio normally when Logic is closed. If it does, the problem is definitely tied to Logic’s audio session. You can also test with another audio-intensive app (like GarageBand) to see if the same conflict occurs—this helps narrow down whether it’s a Logic-specific bug or a broader system audio issue.

内容的提问来源于stack exchange，提问作者Dejay Kydd