If the device you want to play audio is already selected, choosing a different audio device and then re-selecting the one you want may remedy the problem. Sometimes the solution to an audio problem is as easy as turning off your computer and turning it on again. Unlike a restart, shutting down your computer ends all processes and clears your RAM, which should also resolve most lingering audio issues.
This information includes audio and display settings, time zone preferences, your current startup disk, and details about any recent fatal system errors. Audio issues on the Mac usually have quick, easy fixes and are rarely linked to serious hardware problems.
However, if you have to reboot your Mac several times or repeatedly reset the Core Audio API to get your sound working, you should probably take your computer in for a check-up. Unplugging and replugging the eighth-inch jack from the back of the computer fixed my problem. An easier way to reset the Core Audio is to just open the Activity Monitor which also lets you know if Core Audio is using too much RAM , select it, then quit or force quit….
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Re: Steps to fix Unmute problem in Macbook Air?
Is this article useful? Yes No. All of a sudden, no sound. I restarted. No sound.
I shut down and rebooted. No sound except the startup sound upon turning the iMac back on. The dB shows zero on my transcription software program, and I hear nothing on YouTube or Facebook or anywhere. There are no drop-down or any other options, certainly nothing about Internal Speakers-Built In. Never mind. My kitten stepped on and turned off the power strip, which shut off the external speakers.
Problem solved. Except how to keep him from doing that again.
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No sound from internal speakers or headphones on my iMac running Sierra. Happened suddenly after working well for months after installing Sierra. How can I restore internal speakers to the Sound Pane? Very grateful for help. I have the same problem. Nothing fixed it.
I have the notion that it might be connected to an overnight itunes Restarting solves the problem, but this has happened 3 times the past few weeks, and its pretty annoying having to reboot every time,. There are instructions on ifix it.
I cannot un-mute my iMac. HELP!!! | MacRumors Forums
The screws inside seemed to be slightly larger than the ones outside so I used some paper towel between the screw and the screwdriver to give it the grip it needed. MacBook Air None of the above worked. A cable or something. All steps not working. Before I lost sound, my glasses had slipped and fell onto my MacBook Pro keyboard.
Software updates and restart complete.
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Please help. Thank you. Still no sound! I fixed it once but it keeps happening. Should the machine go back in for a repair? Is there another way to get this fixed? Any help?
I cannot un-mute my iMac. HELP!!!
It was- and then normal sound function returned….? This problem occurred for me on a macbook. Turning on Bluetooth worked for me.