AirPlay Extended Display No Sound From TV

You are awesome! Thanks 🙂

This worked for me too... Open terminal and enter this sudo command. Put in your password when prompted:

sudo kill `ps -ax | grep 'coreaudiod' | grep 'sbin' |awk '{print $1}'`

I confirm that restarting coreaudio this way works.

You can do it easier by running:

     sudo pkill coreaudiod

PS: related thread on Stackexchange: http://apple.stackexchange.com/questions/112651/cant-stream-audio-from-osx-maver icks-to-apple-tv

I'm having the same problem, but while trying to stream a show at http://www.fox.com/watch/179018307700, I did get sound for the commercials, but not for the actual show. Rebooting didn't help with this one.

This sure fixed my problem 🙂 try it ...

So I have tried switching the sound output, it kept switching back; rebooted both my computer and the Apple TV, all it did was let me switch to apple tv audio except the sound didn't actually work, tried changing the core audio in the terminal, all that did was keep me from choosing apple tv audio again...so thats fun. cant use apple tv audio even though i tried everything.

I don't know if it's your problem. But with my Mac Mini I have a pair of powered speakers plugged into the headphone jack. If I want to extend/mirror to my Apple TV and have the audio there as well. I would need to unplug the speakers from the headphone jack.

The problem that everyone else is having in this thread is not related to what is happening with me. But if they too were to plug in some speakers into their headphone jack. the audio will be coming out of those speakers instead of the Apple TV. It's been like this for years.

KOT

Also something to look out for here is OS X's tendency to reset your volume level when you switch between devices.

Sometimes when I switch to a new Airplay device, the volume control is reset to "0", so it seems that the sound goes away. Just going to the volume setting in the top line of the desktop may be all you need to do.

This may sound like a "duh" answer, but ... I'm a sofware professional who went through this entire thread before realizing OS X was just muting my Apple TV with the volume slider.

Yes! This worked for me, too. Thank you, Chrise86! Thank you, community!

amazing! works like a charm! Thank you!!!!

Resetting the volume level for the computer is the key. For some reason when you select airplay it sets the volume control on the computer to all the way off.

This is NOT a problem with the new iPad app as far as I can tell, it applies only when you try to use Airplay from your desktop computer.

Thanks for the help.

Finally something that worked for me!

Previously I did need to just disconnect and then reconnect to the wifi on my Mac to solve the problem.

This go around, it WAS the volume control setting. Went to System Preferences > Sound > Apple TV. The volume slider was all the way down, thus no sound. Just moved it back to the center level and problem solved.

Thanks all who posted this simple fix.

Thanks. Did the job perfectly without having to restart my MacBook.

I'm an idiot too. It was the volume reset to zero that was the culprit in my case. I only discovered this when I went to Sound in Preferences (after trying the reboot suggestions) because people were saying they couldn't select the appropriate speakers. My speakers were correctly selected but volume "0". I now have my speaker output volume displayed on my screen so I can pick up on this earlier. Thanks Forum.