AppleTV 4 surround sound issue

meegwell wrote:

To be clear, standard DD5.1 = AC-3 (5.1)...correct?

Yes. E-AC-3 is DD+

I know that, I merely mentioned when i was testing out my newly arrived front towers ( admittedly I shouldn't have mentioned them as it is superfluous ) that is when I kept flipping between my old ATV3 and the new ATV4

Airsculpture wrote:

Totally agree with your comments Jon. Previous movies which played fine in 5.1 on the ATV3 now only give stereo or mock surround sound whatever I choose, whether it be Auto or DS setting.

Using what app?

Setting under Audio Video options

bodosom wrote:

Airsculpture wrote:

Previous movies which played fine in 5.1 on the ATV3 now only give stereo or mock surround sound whatever I choose, whether it be Auto or DS setting.

Using what app?

What app are you using to play movies? What app is converting AC-3/5.1 (3/2/.1) to stereo (2/0/.0) on the ATV4gen?

TThe movies are streaming from iTunes library through home sharing

Just as an aside ( and not promoting at all ), I just downloaded https://itunes.apple.com/us/app/media-info/id550128418?mt=12 from the app store. Are App and shows up exactly what you have in your media files ( audio, video etc ) . Thought this might be useful with those details sadly removed now from the iTunes Info pane.

Ignore my post on the 'only giving stereo', there was a fault in the m4v file, recitified and now get PCM 5.1 through from the file in Auto setting in audio options in ATV4

Just installed Infuse PRO for ATV4. It has the options to pass through Dolby Digital and also DTS.

Although only tested with 5.1 material, I have seen DTS5.1 content being passed through the ATV to my receiver.

The Receiver did detect a true DTS stream 🙂.

Now I am awaiting material with Dolby Atmos information included to see if this information is passed through also when setting DD to pass through in Infuse Pro settings!

I just want to add that I too am having a similar issue with no Dolby output on the TV4

I am using a brand new Pioneer 1310 receiver.

I have tried all settings on the apple TV (stereo, auto, dolby). I have tried Netflix and Youtube content.

I have swapped the Apple TV4 onto an HDMI input that that works with a different device (cable box), and the TV4 did not work. I have swapped the cable box on the HDMI port used by the Apple TV and it works. Thus ruling out issues with the receiver.

I have reset the TV4 to factory. Still experience the same issues.

jvulto wrote:

Just installed Infuse PRO for ATV4. It has the options to pass through Dolby Digital and also DTS.

Although only tested with 5.1 material, I have seen DTS5.1 content being passed through the ATV to my receiver.

The Receiver did detect a true DTS stream 🙂.

Now I am awaiting material with Dolby Atmos information included to see if this information is passed through also when setting DD to pass through in Infuse Pro settings!

I am probably not alone when saying that I am very curious about this. What setting did you have on the ATV4 (auto or dolby) audio?

I just want to add that I too am having a similar issue with no Dolby output on the TV4

I am using a brand new Pioneer 1310 receiver.

I have tried all settings on the apple TV (stereo, auto, dolby). I have tried Netflix and Youtube content.

I have swapped the Apple TV4 onto an HDMI input that that works with a different device (cable box), and the TV4 did not work. I have swapped the cable box on the HDMI port used by the Apple TV and it works. Thus ruling out issues with the receiver.

I have reset the TV4 to factory. Still experience the same issues.

If you are using the TV4 with the latest tvOS update, then, according to the Apple developer engineering team, the device "behaves as intended." This appears to mean that Apple currently has no plans to restore previous TV Dolby "passthrough" capabilities and implies Apple is satisfied that

1. the "Stereo" mode will covert all input audio to mono/mono or Left/Right 2-channel PCM output to downstream devices,
2. the "Auto" mode will output all DD+/DD "multichannel" audio as multichannel PCM channelized audio and all non-"multichannel" audio as "Stereo" mode audio output to downstream devices, and
3. the "Dolby Surround" mode will output DD+/DD "multichannel" audio as DD5.1 audio bitstream and non-"multichannel" audio as "Stereo" mode audio output to downstream devices with
4. "multichannel" apparently being defined as any audio content having an LFE channel.

If this is the way your system is operating, then Apple concludes your system is working normally/properly at this time. If you disagree and would prefer to have the developer engineering team restore a separate "DD+/DD Passthrough" mode, then you are invited to send Apple Product Feedback and/or Developer Bug Reports to this effect.

ROFLMFAO, if this is Apple's take on it, I guess I Am in possession of some pretty expensive hockey pucks.

Edit: Wrong thread

Hockey Pucks?

I'll take them off of your hands