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This enables you to reset the audio without restarting the computer. Then, play the audio and see if the problem is fixed. Unplug your speakers or other connections If there’s an external audio device connected to your Mac, such as speakers, headphones, etc., try disconnecting it. You'll need to enter your password to use this code. Choose Sound Check which device is selected as output Make sure Mute is not selected. Sudo kill -9 ps ax|grep 'coreaudio' | awk ''

The sound settings are OK, connecting and disconnecting the headphones is recognized correctly, no red light from the headphones jack socket. I have absolutely no sound output both from internal speakers and headphones, even the startup sound doesn't play. Open Terminal by clicking on "Go" and then "Utilities." Select the Terminal icon and enter the following code into the Terminal: 2 I have a Macbook Pro 2015 running Mojave 10.14.6. Make sure that the Mute checkbox located in the lower right corner is unchecked.

If not, the machine needs to be serviced. You may be able to free it by inserting and removing a mini-stereo jack of the proper size. For instance, if you are using built-in speakers, you should have "Internal Speakers" highlighted. If a red light is visible in the audio-out port when sound should be playing, the internal switch is stuck in the position for digital output. Check which device is now selected, and change. Click the "Output" tab and make sure that the proper sound output device is selected. Check your output settings From the main Apple menu > System Preferences > Sound > Output. Shut down your MacBook and restart your computer if restarting your audio editing program doesn't work, or if the problem is with generic system sounds.Ĭlick "Go" and then "Utilities" followed by "Disk Utility." Select your hard disk from the list of options on the left, and then click "Repair Disk Permissions." Sometimes, corrupted permissions can cause problems with audio.Ĭlick "System Preferences" in the dock and then click "Sound," located under the Hardware section.