If you have issues with the sound in a Blizzard Game (such as skipping, popping, screeching, or no sound), follow the steps below to troubleshoot the problem.

Windows

  1. Make sure your speakers or headphones are turned on and properly connected to your computer's sound device. For specific instructions, contact your computer's manufacturer.
  2. Swap your audio cables with a working set to test for a bad cable or connection.
  3. Sound from your speakers may be redirected if you have headphones plugged in. Disconnect your headphones to resolve this issue.
  4. Check your system volume by clicking the volume icon in your Windows system tray (near the clock). Make sure volume levels are set appropriately and that Mute or Mute All is not selected.
  5. Check your in-game audio settings in the game's options menu. Make sure Enable Music and Enable Sound are checked, Master Volume is set appropriately, and your Output Device, Speaker Setup, Sound Quality, and Sound Channel are correct.
    Note: Higher Sound Quality settings will sound better, but may reduce performance.
  6. Make sure your drivers are up-to-date.
  7. You may need to close background applications to improve performance and stability.
  8. World of Warcraft players can try resetting the user interface to resolve sound issues.
  9. Players can also try pressing Ctrl+S and Ctrl+M on their keyboard to make sure they didn't turn their sound or music off by mistake while playing.
Advanced Troubleshooting
  1. Audio issues can arise when you run the game in compatibility mode. Disable compatibility mode.
  2. Be sure your default communications device is properly set up.
    • Right-click the speaker icon in the Windows system tray (near the clock).
    • Click Playback Devices.
    • Select your preferred device and click Set Default Communications Device.

Mac

  1. Make sure your speakers or headphones are turned on and are properly connected to your computer.
  2. Swap your audio cables with a working set to test for a bad cable or connection.
  3. Outdated sound drivers can cause several sound issues. Make sure your drivers are updated.
  4. Check your computer's volume by clicking the Apple menu, System Preferences, then Sound. Check Show volume in menu bar and drag the slider to the right.
Advanced Troubleshooting
  1. Your Mac must have an output device enabled. Make sure your sound devices are properly configured.
  2. Check your in-game audio settings in the game's options menu. Make sure Enable Music and Enable Sound are checked, Master Volume is set appropriately; and your Output Device, Speaker Setup, Sound Quality, and Sound Channel are correct.
    Note: Higher Sound Quality settings will sound better, but may reduce performance.
  3. Programs running in the background may conflict with the game and degrade performance, including audio performance. Close any running background applications.

Tried everything here?

If you have tried all of the steps for your operating system and still require assistance, please visit our Technical Support Forum (World of Warcraft) (StarCraft II) (Diablo III) (Hearthstone) (Heroes of the Storm) (Overwatch) (Classic Games) or contact us.