FOR WINDOWS USERS:
1.) Verify that the volume isn't on mute. Left-click on the 'speaker' icon on your system tray in the lower right-hand corner of your monitor. Scroll the volume level to your liking.
2.) If the volume is not muted - please open 'Playback devices' by right-clicking the 'speaker' icon in your system tray > 'audio devices.' Your default playback device will have a green check. This should be the correct device unless any changes have been made recently... Right-click your default device and disable and re-enable it.
3.) Restart your PC.
4.) Update drivers. Open 'Device Manager' and expand the 'Audio inputs and outputs' section. Find your default device and right-click > 'update driver.' 'Search Automatically' for the drivers online - If Windows does not find them, it will suggest a search on Windows Update.
5.) Reconnect the cables from your speakers, headphones or speaker bar into the PC. Depending on the model and port availability, use a different port if possible.
6.) Try a different device if you have another set of speakers, headphones or speaker bars. If this is not feasible, please submit a ticket here.
FOR MAC USERS:
1.) Open 'System Preferences' and go to 'Sound.'
2.) Go to 'Output' and verify that the sound is not on mute. You can adjust the levels from this interface or the keyboard shortcut Fn+10, 11, & 12 (mute, volume down, and volume up).
3.) Restart your Mac.
4.) If you're using external speakers, be sure to check all connections. Unplug all devices from your Mac and reinsert them firmly.
5.) Check for system updates. There could be an outdated driver that your system will pick up.
5.) Try a different set of speakers or headphones. If the issue persists, please submit a ticket here.