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When I extend my MacBook display to my TV using my Apple TV, both the video and audio work well, being output through my TV.

However, when I disconnect my Apple TV, the video disconnects, but audio from my computer is still output through my TV.

I tried going to System Preferences > Sound and toggling the output back to my Internal Speakers, but this doesn't seem to work.

Any idea why?

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  • what does not seem to work ?
    – Ruskes
    Commented Nov 8, 2014 at 23:13
  • did you select where to play the music? internal speakers or the AirPlay device.
    – OzzieSpin
    Commented Oct 19, 2016 at 16:22

5 Answers 5

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I have had something similar on the Answer when directing sound vai the say command to my Apple Tv and then back to the Built in output.

I would have to run the command to switch back twice to get it back

You could open Terminal.app and type and run

say -a 38 "I am Back"

a couple of times.

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Quit the coreaudio task in Activity Monitor.

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I've had this problem happen to me in the past. I have found that restarting my Mac tends to fix the problem.

Try restarting your Mac.

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Try to reset both your Mac and the TV, that works for me.

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Here’s how to quickly fix the missing audio output on a Mac. And yes, this applies to all Macs with all forms of speakers; internal, external, headphones, earbuds, etc:

Head to the  Apple menu and choose “System Preferences”, then select the “Sound” panel Choose the “Output” tab Select “Internal Speakers” as the output device* Adjust the sound as usual, it will now work as intended

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    I'm pretty sure this is what the OP already said didn't work...
    – Tetsujin
    Commented Dec 28, 2015 at 9:07

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