Apple TV - No Sound Output

I have an apple tv set up with my macbook and it the past it has worked with no complications until tonight. When I try to link it , it either kicks my macbook off Apple tv altogether or it plays video but doesn't play the sound OR it selects the Apple TV downstairs but the display is still showing on the my TV upstairs.
I've checked to see if the software is updated. I've also gone into settings and selected the audio output to my Apple TV upstairs. It doesn't let me select that, everytime I click it, it automaticaly unselects in and chooses internal speakers. It won't even allow it for a second.
So confused. I'm on a Mac OS X 10.8.5

I haven't personally had this problem, but I believe in order to hear music through your TV speakers, you have to use the headphone port instead of the AV cable.

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Can Apple TV produce sound output on a wireless speaker and a cable-connected speaker simultaneously?

My situation is this:
I have a one bedroom apartment. In the main room, I have a Bose Soundlink (via bluetooth, which may be my first problem!!!). I just got an Apple TV (3) and want to connect it to the TV in my bedroom. I was considering getting some not-too-expensive speakers to improve upon my TV sound. One goal of this would be to be able to access my iTunes music and play the same thing in both rooms.
I gather that Apple TV is no good at hosting two or more wireless speaker signals, but I'm hopeful it can manage a wireless and a direct cable input??? Does the TV need to be on to facilitate this or can it just go directly through the Apple TV? And what use, if any, woudl the optical audio output do for me in this situation?
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Paul
You said the Optical to the home theatre doesn't work, do you mean it had the same sound issue or that the OA to Home Theatre didn't produce any sound? If the latter then first check the cable is working (red light on the tip once the other end is in the ATV).
Sorry I am not addressing the main question of poor sound as others will know that better, but the OA issue might be solvable and improve your listening, unless of course you have rented The Artist

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I haven't personally had this problem, but I believe in order to hear music through your TV speakers, you have to use the headphone port instead of the AV cable.

Sound output: keeps changing from internal speakers to Apple TV

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Thanks!

If you use LogMeIn, it is their sound driver. I'm having identical problem and it started after using LogMeIn.
See this page;
http://community.logmein.com/t5/Free/Mac-restore-defaul-sound-output-device-on-d isconnect/m-p/88522/highlight/false#M8093

2 Apple TV's and no sound output when using AirPlay/mirroring?

Hi,
Bought my first apple tv and when air mirroring was able to go to my system preferences and choose sound output for it and it worked beautifully when I wanted to play a movie on my computer and send it to the TV. Bought a second apple tv for the bedroom, both are connected over wifi. Using Mountain Lion on my iMac. Now it won't play any sound on either and will not let me choose which apple tv in system preferences - sound. Any help would be appreciated
Sue
I have tried turning Apple TV on first, then choosing sound output before turning on air mirroring. Problem is it won't let me choose, stays on internal speakers.
This fix won't work for me.

Might I recommend the following sample code instead?
[http://www.jsresources.org/examples/MidiNote.html]

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Philly - I think you are confusing the Digital AV Adapter with something else. It is for use only with TV's and other video displays that have HDMI ports - not those that don't. Per Apple in their info on this device: "Watch slideshows and movies on the big screen in up to 720p by connecting your iPad, iPhone 4, or iPod touch (4th generation) to an HDTV or HDMI-compatible display."
http://store.apple.com/us/product/MC953ZM/A
http://www.apple.com/ipad/features/mirroring.html
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Hi,
Beacon Interval - 400
Threshold - 2346
RTS - 2347
DTIM interval - 1
CTS protection mode - Disabled
Basic rate - Default
Transmittion rate - Auto(Negotiating)
So the other client must have that settings on network adapter Control Panel->Network Connections->configure->Link Speed Duplex - Auto(Default settings).
I hope that to be helpfull for you,if not please let me know.
Thanks!!!!!!
George
Thanks
Kind Regards
ing.George Gochev
DSL and Telecommunications Engineer

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Well, i've been digging all the forums lately in web. my problem is, i can't change my 'system' sound output to my sound card which is Native Instruments Audio8 Dj.
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I am having the exact same problem. I have spoken with Apple Care and they are having my case reviewed by "Engineers," apparently. Its very frustrating as I cannot listen to iTunes or any of my video games through my really nice monitor speakers. FYI, I had this problem without installing Sound Flower, since then I have installed it in the hopes that having something different to select it might work but no changes. If I hear any good news from Apple I will be back to let you know. This seems to be a very rare problem as I have only found one other post about this issue.

The sound output does not work on my ipod

Hi There,
I have an Ipod 4 th generation and the sound output no longer works on any device. I've reset and reinstalled the software but nothing appears to work?
Any ideas please?
Serial number: 9C6463XJV9R
Thanks Chris

If none of the 5 R's helped address the issue, it's likely hardware related.
http://www.apple.com/support/ipod/five_rs/
As to what exactly is damaged/faulty, no there is no certain way to tell. It could be the iPod's audio chip or something else on the logic board.
Either way you'll need to have your iPod serviced/replaced either by Apple or a third party company.
B-rock

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Some general checking:
Open System Information found in Applications->Utilities.
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info.
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switch.
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Hey guys, I have this sound output issue with my Macbook pro 2010 September version that every once in a while, the audio output would keep swapping between headphone, digital output and the speakers when NO headphone or digital output or what so ever is actually plugged in. During this time i am unable to adjust sounds, and my menu bar would become very slow to respond (the sound icon and Soundsource application would stop responding during this time). After a while (could be less than 10 minutes or last to about an hour, it varies), it returns back to normal by itself.
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I have both and haven't experienced this at all. Very strange. I do get a lot of random channel changes however when I put my iPad on the remote, the cat walks over it or the dog sits on it.
That being said, I don't use the Samsung remote at all for the TV and never have done. I dislike it and find it unresponsive. I use a different remote to change through the available outputs and the Vision remote for Vision and for switching the TV on and off.
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The choice of headphone jack is not showing up under the system preferences - sound output options. Therefor, my speakers suddenly do not work with my iMac

On my Intel based iMac, OS 10.6.8, my speakers suddenly were not transmitting sound. When I checked the System Preferences, Sound output, the headphone option was no longer available. This has always worked in the past - what is up?
Anyone have any suggestions???
Ellen

Applications > Utilities > AudioMIDI Setup.app
Audio Devices window
Side Bar
Click the Built-in Output.
Under Mute any of the boxes checked? If so uncheck it.
Plug in the headphone and check whether in the output headphone shows up in the same panel.
If so, you can adjust the volume there.
Reset SMC and PRAM.
     Reset PRAM. http://support.apple.com/kb/PH4405
     Reset SMC.     http://support.apple.com/kb/HT3964
     Choose the appropriate method.
Best.

Sound output to Airport Express horrible except through iTunes Airplay

I've had an Airport Express for 2 or so months now, and I use it for both wifi routing as well as its Airplay functionality, wired into my stereo. I've used it with Airplay directly from iTunes as well as setting the system sound output on my Mac to go over to the Airport Express.
As of today, only the Airplay over iTunes works without issue. When I go to the system sound preferences and select the Airport Express, I hear a very loud pop, and all output is muffled and highly distorted. If iTunes is playing, that sounds bad too. However, with the system sound prefs set to internal speakers and ONLY iTunes set to Airplay, it sounds fine. This is not good at all for me, as I often send audio from Youtube and other streaming sites to Airport Express to play on my stereo.
How can I get sound output to Airport Express from the sound preferences to play nice again?
PS, I have the identical issue with Apple TV, though I don't use it regularly for Airplay. System output to Apple TV is terrible, iTunes Airplay to it is fine, and the audio from content on Apple TV is fine.

Is there any way to output any sound from a computer to Airport Express, not just iTunes?
Yes, check out Rogue Amoeba's AirFoil.

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I've got a 3GS which I've had since October.
Recently, there has been no sound output from the headphone socket - or rather, what does come out is very strange, sounding almost electronically distorted.
I thought that maybe the headphone jack was broken, but now I've found out that the same thing can be heard through a dock when the iPod is connected this way.
I'm fairly sure the dock connector is still fine as the phone charges and can be controlled by the dock etc
Most of the discussions I've found relate to sound not coming from the speaker on the phone, but this is absolutely fine.
Any ideas?

Hi, and welcome to Apple Discussions.
Have you tried resetting the PMU?
I'm not optimistic that this will help any more than the procedures you've already tried, but it won't hurt to try.
Do you still have your OS 9 installation? If so, try booting into OS 9 and see if the problems with the audio are happening there, too. If so, you can bet it's a hardware problem.
How big is your hard drive and how much space remains available on it? If you don't have your OS 9 installation in order to check out whether it's a hardware problem and you have enough available hard drive space, you may want to try an Archive and Install of the OS in order to make sure it isn't an OS X system-wide problem. If that doesn't do it, you could back up your hard drive and restore your software.
All of this may just be spinning your wheels, but it's all stuff you can try before shelling out a lot of money for repairs.

System Sound Output Level Reset After Reboot ?

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Apple TV - No Sound Output

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