Symptoms
Follow these steps to fix these audio issues:
- No sound when viewing content
- Audio static during playback
- No sound when navigating menus
Resolution
You can fix most audio issues, including no sound or static, by following these steps:
- Check that all connections between your Apple TV and TV or home theater receiver are secure and fully plugged in.
- If you use a receiver with your Apple TV, set the receiver to the corresponding input. See the manufacturer’s user guide for help changing your receiver input.
- Adjust the volume on your TV or receiver and turn off mute. See the manufacturer’s user guide for help changing the volume or mute setting.
- Restart your Apple TV by holding down Menu and Down on the Apple Remote for six seconds. The Apple TV may take a few minutes to restart.
If you’re using a home theater receiver or optical digital audio port (sometimes called S/PDIF or TOSLINK):
- Connect your TV directly to your Apple TV with an HDMI cable.
- If the audio issue isn’t resolved, see the manufacturer’s user guide for additional support or follow the steps below.
If you continue to experience the issue after completing the above steps, try these steps:
- Set the audio output mode for the Apple TV:
- With your Apple Remote, select Settings > Audio & Video.
- Change the Audio Output setting from Auto to 16 bit.
- Turn off the Dolby Digital Out setting (your TV or receiver may not be properly detecting a Dolby Digital signal):
- With your Apple Remote, select Settings > Audio & Video.
- Change the Dolby Digital Out setting from On to Off.
If there’s no sound when you navigate the menu, adjust the preference in Settings > Audio & Video > Sound Effects.
Reference: http://support.apple.com/kb/TS5150
