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Fixing Audio Lag and Crackling Issues on Mac

Issue Description 

Audio playback is delayed, distorted, or crackles during use. 

Common Causes 

  • Sample rate mismatch 
  • Audio driver glitches 
  • Bluetooth interference 

Step-by-Step Solution 

Step 1: Check Audio Format 

  • Open Audio MIDI Setup 
  • Set Format to 44.1 kHz or 48 kHz 

 

Step 2: Restart Core Audio 

  • Open Terminal 

sudo killall coreaudiod 

 

Step 3: Disable Bluetooth Audio 

  • Temporarily disconnect Bluetooth devices 
  • Test wired audio 

 

Step 4: Restart Mac 

  • Confirm clean audio output 

Explore Further 

  • Test with different audio interface 

Prevention & Best Practices 

Avoid mixing multiple audio devices simultaneously.