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?

  • 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


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.


Quit the coreaudio task in Activity Monitor.


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.


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


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

  • 1
    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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