Keep holding the keys until your Mac restarts.

Note that it is important you press these keys before the Apple logo appears.

press and hold the Command, Option, P, and R keys at the same time, after you hear the startup sound.

Press the power button to turn on your computer.

Turn off your Mac (Apple menu > Shut Down…).

You may want to print these steps, as the process involves turning off your Mac.

Speaker volume information is stored in PRAM (on older Macs) or NVRAM (on newer Intel-based Macs). The coreaudiod process should restart itself.

You can also do this using Activity Monitor. Then press enter (you may need to enter your admin password). Launch Terminal and enter the following command: sudo killall coreaudiod You may want to reset the Core Audio process. Make sure you have the correct device for your audio selected. You will have to use the Sharp TV for volume adjustment. These devices can be headphones plugged into your Mac, external speakers or AirPlay devices.įor example, as you can see below, if the Sharp TV is selected, you will get the volume icon like above if you try to adjust the volume on your Mac. You can select a device you want to use in the list of output devices if you have multiple devices. That also your internal speakers are disabled. When you press the volume keys, do you see an image like this: Make sure that your settings are correct. If the audio stops working properly in macOS, the first thing you should do is to go to System Preferences > Sound > Output and check your sound settings. Please complete each step before moving on. If you can’t adjust volume, here is how you can fix: More specifically, several Mac users have reported that they are unable to change/adjust sound/volume.ĭo you think that your Mac’s volume control is not working? This article aims to help you troubleshoot and fix sound problems.

Application volume mixer for mac