Originally Posted by OrcusVaruna
is there anyway to force the linker to convert all audio to Dolby Digital stereo or 5.1? I have a Sonos Playbase and just bought a Panasonic UB820 which will not convert audio to Dolby for me. Unfortunately Sonos can not play DTS encodes at all and can only handle PCM in stereo. Or if this is not possible can you force the linker to Pass 5.1 Dolby signals and 2.0 PCM rather then applying a 2.0 PCM to 5.1 PCM conversion? Thank you
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We do not convert any AUDIO, only VIDEO.
We do not have the expensive dolby license to convert Audio as they are not interested in small players and have prohibitive pricing to keep small player like us out of the game.
Originally Posted by alfa1
Thanks for all your help-I think I have narrowed the problem down to my AVR. I reset the AT4K and I was able to send 4K signals to my 1080p tv. I also got Atmos audio to show as an option on the AT4K, on both Netflix shows and ITunes movies. No sound would play through my receiver unless I changed the sound option on the AT4K to Dolby digital 5.1 instead if Atmos. The problem could be the Linker or the AVR as you said, so I hooked the AT4K directly to the AVR. No UHD video now, but ITunes movies play Atmos in HD, and when I played the HD version of The Martian, which has Atmos audio, no sound. So it must be the AVR, right?
Linker doesn't support the new method used and introduced on ATV4K latest firmware to transmit ATMOS, which is called Dolby MAT, before they were using True HD bitstream to send ATMOS and this is supported and worked fine till this latest update.
If I got your post right, you had ATMOS playing from ITunes but not from Netflix correct ?
Those results are a bit contradictory and would indicate that when in itunes, ATMOS is still send thru True HD/bitstream and only send thru Dolby MAT/PCM when from Netflix, not sure if someone can confirm on that...
You should check with AVR manufacturer if it supports Dolby MAT (they should very much be aware of this issue since ATV4K latest update)
And you should go complain to ATV4K and request an output selection for Atmos (either Dolby MAT/PC or TrueHD/bitstream)
What Apple did with this latest firmware is creating lot of issues for a lot of people as perfectly working setup for Atmos are now failing cause of that.
But things won't change if no one complain and notify them about it.
So to summarize:
To support current ATV4K firmware using Dolby MAT for ATMOS, you need Integral2 or Vertex and you need to make sure your AVR also support Dolby MAT.
if using previous ATV4K firmware using True HD bitstream for ATMOS, then Linker will work fine and mostly any AVR as well.
if using any next upcoming ATV4K firmware, you can just hope that they improve or correct this situation by adding an output mode selection for Atmos format (either Dolby MAT/PCM or True HD/Bitstream) > but they won't do it if no one told them about the problem. I do believe they have been notified a lot already, but in such case, the more people do it, the more chance you all have.