Sound on Apple TV not working.

If you are still having problems and you have a receiver or HDMI switch between your AppleTV and your receiver then you may need a solution to correct the EDID in the HDMI signal between all the devices. See if this article matches what you're seeing. If so you can follow some of the recommendations based on your setup. http://www.pooraudiophile.com/2013/12/the-fix-for-appletv-hdmi-woes-and-hdmi.htm l. If your setup is simple then go for the Dr. HDMI. however make sure you have followed all the troubleshooting steps in the Apple tech notes.

I have two Apple TV's in different rooms. I had a similar problem in one of the rooms and went into the settings then airplay and discovered that I had the speakers connected to the other Apple TV in another room. Once I selected the correct speakers it worked fine. You may not have the same set up, but if you do this may be the problem if you have tried everything else like I had.

I'm successfully doing what you want to do: I'm able to play content from all my iOS devices and stream content from multiple computers to my AppleTV through my sound system without issue. So yes, it's possible and it works. I have over 8 HDMI devices connected in my setup. I had three that exhibited some odd behavior at times.

The AppleTV was one of them. I followed the advice in the blog post for an EDID emulator and it fixed the problem for all my devices instantly. I'd have a problem 8 out of 10 times now it's 0 out of 10. It's very, very easy to blame a device but I'm trying to convey to you that overall HDMI is a terribly implemented digital technology and it has significant problems when you start to put switches and other things in the middle. Some receivers too will tend to have more HDMI problems than others. Debugging HDMI issues isn't that simple and the real problem can be anywhere in the chain including--and I want to emphasize this--the order in which you start your devices.

As a rule of thumb, turn your display on first, then your receiver, then the source device in that order. If you haven't done so already, force the resolution and audio of the AppleTV to match your TV so that it at least reduces one less thing. The next time you encounter the audio problem on your AppleTV, try switching the HDMI resoution or HDMI to RGB HIGH or RGB LOW and see if that solves your audio issue. If that's the case, then I'm once again going to point you to trying out an EDID emulator like Dr. HDMI.

A few more questions about your setup:

1. What brand of HDMI cable are you using and how long is the cable?
2. Can you connect your AppleTV to your Receiver via Toslink and see if you are still getting the audio dropouts
3. Can you please post your receiver make and model?

The key here when there is no sound is to check your receiver. It should be telling you on the front screen the type of audio signal it's receiving. For example, when my AppleTV sends a signal to my receiver, I'll see either Stereo or 5.1 Dolby Digital.

Here's why I'm saying this: you need to first identify if the audio signal from the AppleTV is dropping out and your receiver is not getting anything or if your receiver is indeed getting the signal and, if so, what kind of signal it is.

Finally, since your computer is brand new, you can always call Apple support too to help you out with some debugging. Their support is great.

I'm also having this issue. Sound works well on music and even on the previews but I rented a movie and no sound. Did all the troubleshooting, rebooting, disconnecting HDMI cables and restarted it. So far nothing has worked but still have all the sound on previews and other apps.

Any ideas? Apple TV is directly connected to the tv and no receiver.

Hello Clino

Check out the articles below to troubleshooting audio issues with Apple TV.

Apple TV: HDMI audio stops working

http://support.apple.com/kb/TS2090

No audio when using Apple TV

http://support.apple.com/kb/TS3789

Thanks for using Apple Support Communities.

Regards,

-Norm G.

There is sound every now and then. Still I need to reboot my Macbook.

So, I managed to get sound using VLC-player and Quicktime. But if streaming the web (Youtube, Vimeo etc. etc.) NO SOUND. Still, Spotify seems to be working OK.

This is ****.

My system:

Brand new 13" Retina-Macbook with OSX 10.9, ATV, Yamaha-receiver (optical connection between ATV & receiver)

Funny thing is, that if close the hatch on my laptop (disconnecting AppleTV-connection), there is still sound coming from the sound-system, but NO PICTURE!

iPad & iPhone with ATV/Airplay work PERFECTLY.

PLEASE FIX THIS.

Clino,

Norm is correct. These two articles will tell you what to check if you have no audio. The big question is whether or not you have a receiver between the AppleTV and your TV. Are you still having this problem or did you solve it? There is a soultion if you can confirm your setup.

In your case, is the issue that you're using a 2013 Macbook connected to a B or G WiFi connection? If you are using AirPlay with that combination, then Apple has issued a tech note of possible issues with those combinations. 802.11n networks don't appear to be affected:

http://support.apple.com/kb/TS5316?viewlocale=en_US&locale=en_US

The resolution that may help is turning OFF Bluetooth.

Airplay mirroring freezes or drops connections on an 802.11 b/g network

Symptoms

When using a MacBook Pro (Late 2013) or Mac Pro (Late 2013) with Airplay mirroring on an 802.11 b or g network, the TV image might freeze or the connection gets dropped.

Resolution

Turning off Bluetooth can enhance the performance of Airplay considerably. To turn off Bluetooth, locate the Bluetooth iconin the menu bar on the upper-right corner of your screen. Click the icon and choose Turn Bluetooth Off.

So Lauri2000, to be clear, you can use AirPlay to:

1. Stream your computer desktop
2. Stream audio and video from just about any application on your computer except for Safari (that would include YouTube, Vimeo, etc.)

I want to make sure that you are streaming your entire desktop and not trying to stream the YouTube or Vimeo player. It sounds to me like you are trying to stream only a specific application. If an application hasn't been designed to take advantage of AirPlay, then it can't. For web content like YouTube, Vimeo, etc, you need to stream your entire screen and then put the video into full screen mode (if you want to watch it like a TV program).

That will solve your problem if I understand what you're describing. Again, I think you're trying to stream the app. That won't work. You need to stream the entire computer desktop and that will work.

Music, apps, and previews are all stereo (2 channel) sound. Some movies rented through AppleTV are available in Dolby Digital surround, which a TV is unable to play. Go to your settings for audio and turn off Dolby Digital and make sure your audio is in 16-bit format. This should solve the problem. What you are describing sound like a textbook case of that problem.

InternetMin wrote:

Music, apps, and previews are all stereo (2 channel) sound. Some movies rented through AppleTV are available in Dolby Digital surround, which a TV is unable to play. Go to your settings for audio and turn off Dolby Digital and make sure your audio is in 16-bit format. This should solve the problem. What you are describing sound like a textbook case of that problem.

Agreed.

All the other iOS-devices connected to AppleTV work just fine: Spotify on iPhone & iPad... Movies on iMac... So, there´s nothing wrong with my AppleTV.

But now when I´m using my new 13" Retina-Macbook: NO SOUND. I´ve done everything. Tried connecting all the cables, rebooting the whole system (MacBook & AppleTV). Even tried that Terminal-script someone suggested. Still: NO SOUND.

This is ********. When I googled this "no sound-topic", seems that the problem has been there for quite a long time. WHY ISN´T THERE A PROPER FIX!?!!??!?!?

Using Airplay + AppleTV was one of the main reasons, why I bought this new laptop. I was promised, that especially this will work fluently.

I´m ******.

I'd love to be able to offer some help, and I can understand your frustration when something isn't working, but can you please repost with what your setup is like, what you're trying to do and what the specific problem is?

All I understand is MacBook doesn't have sound with AppleTV. can you please confirm your Mac operating system version, what generation AppleTV you have and if you are going straight to a TV or through a receiver, etc?

Many of you are offering poor solutions by just linking articles. Many people, including myself are having an issue where sound effects such as the clicks are able to be heard but once you open an app to watch something the audio is gone. Changing audio settings and checking cables has nothing to do with this.

However, restarting the Apple TV did fix the problem.

To be clear, I want to hear my computers sound via my speaker-system, wirelessly. Play games, watch videos, stream youtube etc. etc. I KNOW IT IS POSSIBLE, because... for some reason, now there is sound in the youtube-video that I´m streaming USING SAFARI!! Yesterday the youtube-sound was missing.

So, I guess what I´m trying to do stream the entire desktop. Whatever. I don´t even know how to "stream the app".

Probably tomorrow the sound is missing again. It´s really annoying reboot the laptop and reconnect the ATV-cables to fix the problem. If Apple wants system like this, they should add a reset button to ATV to make rebooting easier.