Mono Audio not working anymore

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Level 1

5 points

Mono Audio not working anymore

Using OSX El Capitan 10.11.5

the "play stereo as mono" feature mysteriously stopped working for me one day, idk how. I switch it on and off and it just stays stereo no matter what. it might've had something to do with me going into audio midi setup to change the headphone output sides because they were messed up for some reason but i'm not sure. i don't know if this is like a permanent glitch or anything and i just unfortunately happened to come across it and now i'm screwed out of it for good or what but it'd be nice to somehow fix it. mono is good because sometimes during school the teacher may only want us to have one bud in one ear so i wouldn't want to miss the instruments on songs i listen to

MacBook Air, OS X El Capitan (10.11.5), null

Posted on Jan 27, 2017 4:10 PM

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Answer 1

chris_g1

Community Specialist

Jan 28, 2017 4:26 PM in response to jdm42

Hi jdm42,

I understand that since using Audio MIDI Setup to adjust your headphone output, the option for mono audio no longer works. I'm happy to help provide some troubleshooting direction for this issue.

Despite being specifically for issues with third-party audio devices, the steps here may still be appropriate because of the steps you've already taken:

If you can’t monitor mono or dual mono audio from Final Cut Pro X 10.2 in OS X 10.10.3 - Apple Support

You can resolve the issue by following these steps:

Open Audio MIDI Setup.

Select your audio output device in the audio device list.

Click Configure Speakers in the bottom right of the window.

Click Multichannel.

Choose Stereo from the pop-up menu and click Done.

If this does not resolve the issue, then I would recommend resetting your SMC and NVRAM which can often help with audio related issues:

Reset the System Management Controller (SMC) on your Mac - Apple Support
How to reset NVRAM on your Mac - Apple Support

Thanks for using the Apple Support Communities. Cheers!

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