Without sound your Mac is a like a muted device showing silent media contents which would be not enjoying anymore. If sound is not working on your Mac means there is some technical problem, you need to check and fix yourself using the few useful tips discussed below.
However, before you start fixing this problem, make sure the sound is not coming from your Mac and to ensure that Mac is making some noise which you can check with audio testing. Just press play and double check that by playing on iTunes bar. And now follow the various troubleshooting process discussed below to fix the Mac sound problem.
Check and Adjust your Sound Settings
First check your sound settings to make sure it is set at favorable point. Go to System Preferences>Sound>Output and check your sound settings discrepancies. Laptop users mainly use internal speakers or headphones, you can see digital output if you are not laptop user, whatever, make sure the desired output is selected on your system.
Check the System Preferences for Sound
If Apple Mac not playing sound you need to open system preferences by clicking the sound. When you click the output tab and click on internal speakers you have to check the system preferences next to output volume. Make sure output volume is not muted and checkbox is not tick. Also make sure that the output volume slider is moved to the right side of the bar.
Reset the PRAM and SMC Settings
PRAM and system management controller (SMC) are the two important parameters related to volume and sound of Mac you need to reset if sound not working on Mac Laptop. To reset the PRAM restart the Mac and also hold down the Command option P and R till your computer starts and chimes. Keep holding them until the chimes come again and release the keys.
Problem with Third Party Device or Software
Sometimes sound related problems come due to using third party external devices or software not developed by the Apple. If Mac sound stopped working disconnected such third party external devices and test them with other computers or connect the device and head back to Mac and make sure your HDMI output is selected on the Output tab. Similarly if you are controlling the sound or adjusting the equalizer, uninstall the third party software.
Update your Outdated Operating System
If you are using an outdated version of Mac OS you can you need to update or upgrade the version with latest one. To upgrade the Mac OS check the compatibility of your system and connect your Mac with strong Wi-Fi connection to download the setup without any interruptions.
However, if you still facing sound related problems or you need help for Mac OS update you can call at Apple Mac tech support number 1-800-431-457 to get quick online assistance at your desk to check such issues remotely and fix the problem with right approach.