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Mountain Lion - Airplay, no audio

I have a 2nd gen Apple TV, and Late 2011 Macbook Pro. Airplay works fine, but when I watch a video or play music the audio comes out of my laptop, not my TV. I checked the audio settings and Airplay is listed as an output device, but you can't click on it. You click and nothing happens.


Is anyone else seeing this issue?


Anyone know a solution?

MacBook Pro (13-inch Late 2011), OS X Mountain Lion

Posted on Jul 26, 2012 2:10 PM

Reply
44 replies

Dec 24, 2012 5:25 PM in response to Scooley84

I have the exact same issue with my 2012 Mac mini and 2012 time capsule (2012 Apple TV). I have everything set to 2.4ghz and AirPlay works perfectly.


When I try to use 5ghz I have intermittent issues with AirPlay from Mac mini showing only video but no sound and the only way to fix is to restart Mac mini or router. No issue with iPhone mirroring on either 2.4ghz or 5ghz.

Jan 16, 2013 9:07 AM in response to aeronp

I have just fixed it now with my BT Home Hub 3. I phoned apple, simply because i got bored of looking at solutions leaving me at a loose end, and as simple as it sounds... turn off your computer, your apple tv and the router. Leave them all for about a minute. Turn the router back on until the brodband lightst up blue, then the apple tv and finally the laptop.


Before turning on the laptop as the last step, check the apple tv is connected to the internet.


The apple guy said it was to 'refresh the connection' and 'sync' everything.


Hope this helps. 🙂

Jan 25, 2013 1:49 AM in response to RyanSmith111093

Just got a new Macbook Pro Retina, and to my big disappointment, I had no sound when mirroring, while music from iTunes was OK.

My home LAN consists of Airport Extreme, Timecapsule and Airport Express connected with cable. Work as a dream in all other ways. Airplay on my iMac, iPhone and iPad works allways.

I have experienced this problem more times and first i rebooted MB, accesspoints and APTV. I'm not sure, but i seems to me, that the incident occurs after reboot or when I'm moving from one accespoint to another. And my simple solution today is: Shut down wifi on the mackbook and restart it again. It works. But I think Apple have an issue with wifi!


Just my two pennies!

Sep 3, 2013 2:52 AM in response to w1nt3rmut3

Just wanted to confirm that killing the "coreaudio" process via the Activity Monitor did it for me too.



I'm using an external AV receiver (Pioneer VSX-527-k with AirPlay) and I thought it was a problem with that reciever. Actually glad to hear (sorry guys, haha) that it's actually OS X that's messing things up. That, I can fix via the coreaudio trick. Not ideal, and Apple should fix this, but hey...we got tunes!


(Forgot I turned up my AirPlay receiver WAY up when I killed the coreaudio process, scared the living daylights outta me when it automatically switched over after it restared haha)

Nov 20, 2013 11:58 AM in response to hiddenmuse

Hey! Did you fixed the problem? I also use the Time Capsule as a router and as much as I seek can not find anything related to the solutions that the rest given. Everything was fine between my Macbook and Apple TV until I made the change to Mavericks, I thought the problem was the IOS but another macbook at home with Mavericks installed and has no problems with Apple TV

Mountain Lion - Airplay, no audio

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