If you are not hearing system sound from a certain device connected to your Mac, like a monitor with built-in speakers, a Bluetooth device or USB audio interface, it's time to check your sound output device settings. That's how.
First, click the Apple menu in the upper-left corner of the screen and choose “System preferences”.
In System Preferences, click on “Sound”.
In the preferences window “Sound”, Click the button “Departure”.
In the output preferences, you will see a list of connected and recognized audio output devices. Click on the entry for the device you would like to use and the system sound will be routed to that device.
At the same time, whether you have enabled “Show volume in menu bar” in Sound preferences, you can also quickly switch between audio output devices by clicking the speaker icon in the menu bar.
As you change audio output devices, you may notice that some of the devices do not support output volume control via macOS (via software sliders or keyboard volume buttons). Then, you will need to adjust the volume of that device using a control element on the device itself, like a goatee, a slider or buttons.
Mac sound output troubleshooting
if you have difficulty routing audio to a device that connects via Bluetooth (like AirPods or Bluetooth speakers), open System Preferences, click on “Bluetooth” and make sure the device is connected today.
RELATED: How to connect Apple AirPods with Mac
If the problem device is a USB audio interface, check the manufacturer's web portal for the latest Mac drivers. You may need to install them for the device to be recognized on your Mac. You can also try using a different USB cable to connect the device to your Mac.. USB cables sometimes break.
And with so many monitors including speakers these days, it's easy to assume that all monitors have them built-in, but many don't. Check your monitor specifications to see if audio output is included. Opposite case, you may need to connect external speakers to your Mac to hear the sound at a comfortable level.
If all else fails, try updating your Mac software or rebooting the system, which can fix a wide range of software-related audio problems. Good luck!
RELATED: How to fix Mac sound problems and other sound problems
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