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AirPlay Mirroring tranfers only video and no sound

My iMac (mid 2011) with Mountain Lion is just transfering video and no sound to ATV (the newest one)... I set the AirPlay Mirroring with no problems, everything has the latest update and still I can see only video while audio is playing via my internal speakers. When I tried to set the audio output to "Apple TV - Airplay" I couldn't do it. When I clicked on any other option it just hops back to internal speakers. For now I just tried it in Preview and no ther app but still, it should work from any app, right? Thanks for any help!

iMac, Mac OS X (10.7.3)

Posted on Jul 29, 2012 2:06 AM

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46 replies

Jul 31, 2012 3:04 AM in response to BeenJaminRocks

Please correct me if Im wrong, is Airport extreme same as Apple TV, but in America? Im trying to find where to change this GHz thing, but fail to do so.. when I open AirPort utility, there's nothing i can change there.. I dont have any Airport base station... where do i change that? Im on MacBook Pro 2012, ATV 3rd gen. Thank u guys!

Jul 31, 2012 9:40 AM in response to SULiik

Been having the same issue and believe it occurs when you force on Atv with mirror connection. I believe is you turn on Atv w/ mouse first this will not happen however I have a few components to work through to test this and not quite enough time. While BeenJasmin has a valid thought I can say it might be off the mark as my AirPort and Atv are wired via CAT6 and I still have the same issue as you.


ATV 3gen

AirportExtreme

MacBook Pro 2.2 Ghz i7

OSX 10.8

Sep 24, 2012 12:20 PM in response to SULiik

You have to follow the following two steps when doing AirPlay from iMac:


Step 1: Open System Preferences and click on sound. Then Click on the output tab and select Apple TV instead of Built-in


Step 2: Click on AirPlay on the Menu bar and Click on Apple TV as you have already done.


It will work just fine. The trick is that you have to set the Sound option BEFORE you send the video to ATV. I don't know why this is but it is not automatic unlike MacBook Air. When you turn off AirPlay you have to change the sound option to Built-in to go back to listening to sound on your iMac.

Nov 24, 2012 4:59 PM in response to SULiik

I tried all of the suggestions from this and other posts...setting audio output to appletv before turning on airplay, restarting the laptop, turning wifi off and on, putting appletv to sleep, etc. Nothing worked. It worked for me many times before. Then I realized I was using Chrome. I just switched to Safari, opened up the same game on ESPN, and it works.

Dec 24, 2012 5:23 PM in response to SULiik

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.

AirPlay Mirroring tranfers only video and no sound

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