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Q: AppleTV 4 surround sound issue

i just acquired an AppleTV 4 to replace my AppleTV 3. Since I used to connect the optical audio out to my Yamaha surround sound receiver, I am forced to use only hdmi. That would not be a problem for two reasons:

 

1. All AppleTV content plays with the receiver showing PCM and not DTS or some other form of surround sound.

2. All my movies i encoded are strictly playing in stereo only. The DTS stream is seemingly not being passed through hdmi.

 

Routing hdmi to tv then optical from tv to receiver does not change anything.

 

How can I fix this?  Surely I should be getting DTS with a Yamaha rx- v1900 receiver?

Posted on Nov 1, 2015 1:32 AM

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Q: AppleTV 4 surround sound issue

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  • by SuperSizeIt,

    SuperSizeIt SuperSizeIt Mar 27, 2016 10:40 AM in response to Airsculpture
    Level 3 (579 points)
    Mar 27, 2016 10:40 AM in response to Airsculpture

    Agreed. PCM is much fuller and has more kick. I'm not sure why the poster said its duller. ATV 4 on DD is much duller and less kick. Maybe he needs to reboot ATV4. I've found that setting may not actually kick unless the silly thing is rebooted.

  • by bodosom,

    bodosom bodosom Aug 31, 2016 4:39 AM in response to mariotheplumber
    Level 1 (28 points)
    iPhone
    Aug 31, 2016 4:39 AM in response to mariotheplumber

    mariotheplumber wrote:

    Anyone any idea why this message is now displayed?

    You have a handshake issue in your system.  It's not unique but it's not particularly common.

     

    For what it's worth I don't have the audio issues you're reporting either.  It's important to properly level match any content and this seems to be a bit harder to do on the ATV 4gen than the ATV3.

  • by bodosom,

    bodosom bodosom Mar 27, 2016 10:52 AM in response to SuperSizeIt
    Level 1 (28 points)
    iPhone
    Mar 27, 2016 10:52 AM in response to SuperSizeIt

    SuperSizeIt wrote:

     

    AV cannot process the input to allow 7.1 output. So I have to leave it on DD on ATV4 and boost up the LFE to compensate as best as possible. Learned my lesson buying first generation from Apple. Shoddy product release to date.

     

    It appears that you admit that your AVR is not up to the task of managing multi-channel PCM inputs as well as well as it handles bitstreams.  That's not Apple's fault.

  • by SuperSizeIt,

    SuperSizeIt SuperSizeIt Mar 27, 2016 10:56 AM in response to bodosom
    Level 3 (579 points)
    Mar 27, 2016 10:56 AM in response to bodosom

    It appears that you have no clue on how AV system process PCM input. Most MID/HIgh will process PCM raw. It will not apply processing to that stream. Perhaps more higher end models in the thousands of dollars. Most will just output channel per channel. If its 5.1 then yes 5.1. If the PCM stream is 7.1 then yes 7.1. Since most content is 5.1 you want the AV to process and output to 7.1 so that all speakers are active and producing an engulfing environment. So If you plan on insulting me because I don't have your kind of AV system that process PCM to DD PLX II or DTS 6, then congratulation to you. lol

  • by Airsculpture,

    Airsculpture Airsculpture Mar 27, 2016 11:24 AM in response to SuperSizeIt
    Level 4 (1,416 points)
    iTunes
    Mar 27, 2016 11:24 AM in response to SuperSizeIt

    Yes that is the disadvantage of going the PCM route, it shows what it's given. For now I have removed my 2 rears and am bi-amping my fronts. But, as this makes no difference to the sound quality in passive bi-amping, I will be returning to 7.1 at some point

  • by bodosom,

    bodosom bodosom Mar 27, 2016 11:27 AM in response to SuperSizeIt
    Level 1 (28 points)
    iPhone
    Mar 27, 2016 11:27 AM in response to SuperSizeIt

    SuperSizeIt wrote:

     

    It appears that you have no clue on how AV system process PCM input. ... So If you plan on insulting me because I don't have your kind of AV system that process PCM to DD PLX II or DTS 6, then congratulation to you. lol

    Well which is it?  I have no clue or I bought a smarter AVR than yours?  By the way I suspect most modern AVRs can process a PCM input into say DTS Neo:X if that input is two channel PCM.  The point is the AVR vendor decided what features to provide and which to withhold.  That's neither Apple's fault or responsibility.

     

    I said it appears because you suggest but didn't definitely say that your system will convert a AC-3 bitstream into a fake 8 or more channel output while it won't do the same with eight channel PCM.  If that's the case Apple has given you a solution: an AC-3 bitstream.  Perhaps you meant something else.

  • by Airsculpture,

    Airsculpture Airsculpture Mar 27, 2016 11:33 AM in response to bodosom
    Level 4 (1,416 points)
    iTunes
    Mar 27, 2016 11:33 AM in response to bodosom

    Interesting. I will investigate once I'm back in 7.1 land.

  • by mariotheplumber,

    mariotheplumber mariotheplumber Mar 27, 2016 1:40 PM in response to bodosom
    Level 1 (54 points)
    Apple TV
    Mar 27, 2016 1:40 PM in response to bodosom

    Thanks, Why does it only appear when switching from ATV3 to ATV4? I think it's something to do with the ATV4 not being happy about running the same media that's being accessed by the ATV3. Tha't the only time the message appears.

  • by mariotheplumber,

    mariotheplumber mariotheplumber Mar 27, 2016 1:43 PM in response to Airsculpture
    Level 1 (54 points)
    Apple TV
    Mar 27, 2016 1:43 PM in response to Airsculpture

    Please could you explain what is meant by, "passive bi-amping". cheers

  • by nathan_h,

    nathan_h nathan_h Mar 27, 2016 1:51 PM in response to SuperSizeIt
    Level 1 (25 points)
    Mar 27, 2016 1:51 PM in response to SuperSizeIt

    Yeah, another example of how the re-encoding of the original soundtrack back into DD is no substitute for actually preserving the original DD (or DD+).

  • by Airsculpture,

    Airsculpture Airsculpture Mar 27, 2016 2:40 PM in response to mariotheplumber
    Level 4 (1,416 points)
    iTunes
    Mar 27, 2016 2:40 PM in response to mariotheplumber
  • by bodosom,

    bodosom bodosom Aug 31, 2016 4:25 AM in response to mariotheplumber
    Level 1 (28 points)
    iPhone
    Aug 31, 2016 4:25 AM in response to mariotheplumber

    mariotheplumber wrote:

    Why does it only appear when switching from ATV3 to ATV4?

    An unfortunate interaction within your AV system.  The ATV 4gen may be the newest HDCP component in your system and be more sensitive to transient handshake failures.  I'm just speculating though.

    mariotheplumber wrote:

    I think it's something to do with the ATV4 not being happy about running the same media that's being accessed by the ATV3.

     

    That's not a problem with my system.

  • by Csound1,

    Csound1 Csound1 Mar 27, 2016 3:14 PM in response to Airsculpture
    Level 9 (50,816 points)
    Desktops
    Mar 27, 2016 3:14 PM in response to Airsculpture

    Airsculpture wrote:

     

    Easier providing a link

     

    http://www.chuckhawks.com/bi-wire_bi-amp.htm

    That's all well and good, but it's at audio frequencies, not video.

  • by bodosom,

    bodosom bodosom Mar 27, 2016 3:24 PM in response to Csound1
    Level 1 (28 points)
    iPhone
    Mar 27, 2016 3:24 PM in response to Csound1

    Csound1 wrote:

     

    Airsculpture wrote:

     

    Easier providing a link

     

    http://www.chuckhawks.com/bi-wire_bi-amp.htm

    That's all well and good, but it's at audio frequencies, not video.

    eh?

  • by Csound1,

    Csound1 Csound1 Mar 27, 2016 3:28 PM in response to bodosom
    Level 9 (50,816 points)
    Desktops
    Mar 27, 2016 3:28 PM in response to bodosom

    So, you didn't understand what it said either, thought so.

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