ATV4 Surround Sound Help!

Discussion in 'Apple TV and Home Theater' started by Calismic, Jan 11, 2016.

  1. Calismic macrumors member

    Joined:
    Sep 20, 2014
    Location:
    Pittsburgh, PA
    #1
    I am at my whits end and I am hoping someone has any suggestions before I throw this thing against the wall. =) I am running a Samsung H5500W through an Optical Cable from the receiver to the TV. I have multiple devices that all work flawlessly with my surround. The new ATV4 refuses to output anything from my back speakers unless I specifically set it to Dolby Surround. I'd be fine with that but unfortunately anything without dolby is silent. I've spoken with support and have been escalated all the way to engineering and no one has any ideas. Engineering seems to think my television is the culprit but they've no ideas to "what" to blame on my TV. (It too is a Samsung) Has anyone else experienced any similar issues? Any suggestions on getting surround to function? Am I just SOL? I rather not go back to the 3 but at least that has an Optical!
     
  2. priitv8 macrumors 68020

    Joined:
    Jan 13, 2011
    Location:
    Estonia
  3. Alrescha, Jan 11, 2016
    Last edited: Jan 11, 2016

    Alrescha macrumors 68020

    Joined:
    Jan 1, 2008
    #3
    I have the same issue with the ATV3 and a Sharp Aquos. My theory has always been that the Sharp does not accept Dolby Surround on the HDMI interface and that this is detected as part of feature negotiation with the Apple TV, so the Apple TV falls back to stereo/PCM.

    My solution was to force Dolby Surround and use the optical interface. As I own multiple ATV3s using this mechanism, I don't see any ATV4s in my future.

    A.
     
  4. niteflyr macrumors 6502a

    Joined:
    Nov 29, 2011
    Location:
    Southern Cal
    #4
  5. bluespark macrumors 65816

    Joined:
    Jul 11, 2009
    Location:
    New York
    #5
    I've said this elsewhere before, but Apple desperately needs to offer a simple passthrough option under Audio preferences. If the device could simply pass through whatever it is getting from the source file, we could use the device of our choice to decode the signal. That would solve a large number of the audio issues people have raised.
     
  6. ActionableMango macrumors 604

    ActionableMango

    Joined:
    Sep 21, 2010
    #6
    Many, many TVs will not pass through 5.1 from their HDMI input to their optical output. Probably the majority of TVs won't do this. There are even multi-thousand dollar TVs that don't do this.

    The proper setup for a home theater with a receiver is to have all "source" devices output to the receiver via the receiver's HDMI IN. The surround audio is decoded right in the receiver as it should, and then the video sent via HDMI OUT to the TV.

    What it sounds like you are doing is connecting the sources to the TV, then routing the audio back out of the TV to the receiver via optical, which is not right. For one thing, a lot of audio codecs can't even be transmitted over optical, but can over HDMI. The main purpose for the optical audio out on the TV is for surround sound from the TV's digital HDTV tuner.

    If you hook the ATV up to the receiver by HDMI IN, then everything should work fine.
     
  7. niteflyr macrumors 6502a

    Joined:
    Nov 29, 2011
    Location:
    Southern Cal
    #7
    Great, now I have to go buy a new reciever. :D
     
  8. Calismic thread starter macrumors member

    Joined:
    Sep 20, 2014
    Location:
    Pittsburgh, PA
    #8
    Hah! I am right there with you! The Samsung receiver does not have any inputs which is why everything is spouting through the television.
     
  9. nebo1ss macrumors 68030

    Joined:
    Jun 2, 2010
    #9
    Agree with this, in addition the bandwidth of Optical is significantly less than what HDMI is capable of. DD+ for example is typically not supported on Optical for this reason.
     
  10. Beerstalker macrumors 6502

    Joined:
    Jun 14, 2011
    Location:
    Peoria, IL
    #10
    That is why I never recommend those DVD/Blu-Ray player/AVR all in ones. They tend to lack inputs for hooking up other devices.
     
  11. Bradleym1978 macrumors newbie

    Bradleym1978

    Joined:
    Apr 27, 2015
    Location:
    Windsor, Ontario, Canada
    #11

    I have the same TV and set up Running all my devices into the TV optical out to receiver. I don't think I've had a problem with the surround working I will check tonight when I get home. if you want direct message me and we could Skype or FaceTime and go through the problems. I have a Onkyo receiver running.
     
  12. mellofello macrumors 65816

    Joined:
    Feb 1, 2011
    #12
    Does your receiver have HDMI in? My tv is hooked to the receiver through HDMI and passes Audi via audio return channel built into HDMI. Look for a port on your tv labels ARC (usually HDMI 1) and configure your tv sound output accordingly.

    If not buy a cheap audio extractor with optical out.
     
  13. ActionableMango macrumors 604

    ActionableMango

    Joined:
    Sep 21, 2010
    #13
    Wait a minute, all of your other source devices are also hooked via HDMI into the TV, then have their audio only going to the amp through optical from the TV? And they have surround? That would seem to indicate that your TV indeed does pass the 5.1 through out (rare feature), but just does not for the ATV4.

    But honestly I don't understand how that could be. Devices like a Blu-Ray are going to have high resolution audio formats that won't even "fit" in the bandwidth of an optical cable, so you wouldn't hear surround unless you were manually selecting an appropriate "lesser" audio track for every disc, every time.
     
  14. Beerstalker macrumors 6502

    Joined:
    Jun 14, 2011
    Location:
    Peoria, IL
    #14
    My guess is the TV is sending out a 2 channel stereo signal and his amp/soundbar are using something like Dolby Pro-Logic to simulate surround sound.
     

Share This Page