Immediately press and hold Option, Command, P and R keys for about 20 seconds and release them when you hear a startup sound. 1) Restarting the computer 2) Looking in System Preferences-Sounds to see if anything looks different (it looks the same as far as I can tell) 3) Checking to make sure the iTunes equalizer is still on and set to my preferred sound setting I'm not sure what else to check. Click the Output tab and click on Internal Speakers.

To do this, shut down your Mac and power it on again. Check System Settings: Open System Settings (System Preferences on pre-Ventura Macs) and click Sound. This happens because the computer restores your hardware’s default settings, and sets the internal hard drive as the startup disk. If you’re trying to listen through speakers or headphones connected only to the USB port on your Mac or display, choose Apple menu > System Preferences, click Sound, then click Output. Reset it to clear any glitches with any of these and other attributes. If your Mac has only one audio port, click the Use audio port for pop-up menu, choose Sound Output, then make sure your external speakers are selected. Your Mac laptop uses nonvolatile random-access memory to store different settings such as sound volume, time zone, display resolution and recent kernel panic information among others, and access them quickly. If you find audio not working on your Mac laptop, try updating your operating system to the latest version and see if it fixes the audio issue. Apple also improves and fixes audio latency, reliability of USB audio issues and other related user concerns. This article will guide you on how to fix this issue. The good news is that it’s something that can be solved. This can be attributed to certain issues with the system. Each time a new macOS is released, it not only comes with improvements and new features, but also changes in audio drivers, kernel frameworks, Unix tools, new bugs and sometimes audio issues follow. MacBook Pro volume low The real fix The volume on a MacBook Pro is sometimes lower than usual.

Macbook pro no audio all of a sudden