Blu-Ray audio dropout and sync issue

[DGilberts]

Originally Posted by Tech-UK

As the other posters have said, some BD players have issues with Atmos encoded tracks when bitstreaming.

Setting the player to output PCM should fix the issue, as you have done. Also check for any firmware updates for your player.

Looking at the manual for your player, it features the DTS-HD Master Audio Essentials decoder, which means when you set the player to output PCM, it will down sample 192kHz DTS-HD MA tracks to 96kHz and output 5.1 as 7.1. There are very little Blu-ray's that feature DTS-HD MA with fs of 192kHz, but just to make you aware of the Essentials decoder. If you bitstream, then you will get the full 192kHz fs and 5.1 tracks will be output as is.

Wow thank you for this information. So with my set up play John Wick and Star Trek Into Darkness (IMAX version) using PCM output and all others play using Bitstream to ensure I'm listening to the full kHz?

Many thanks

[schan1269]

Originally Posted by DGilberts

Wow thank you for this information. So with my set up play John Wick and Star Trek Into Darkness (IMAX version) using PCM output and all others play using Bitstream to ensure I'm listening to the full kHz?

Many thanks

The only difference...

The cool lights won't turn on on the AVR display.

[DGilberts]

Originally Posted by schan1269

The only difference...

The cool lights won't turn on on the AVR display.

Are ok. Well i don't have any displays on anyway, hate the distractions.

DTS HD codes:
I just picking up a previous comment about the downsampling on my Blu-Ray player.
My player has the DTS-HD Master Audio Essentials decoder, while the receiver has the DTS-HD Master Audio decoder. Tech UK says the player will downsample to 96kHz. So if the receiver does it will it be the full 192kHz.

Dolby HD:
Is there any differences between the player and receivers downsampling of this code?

Funny thing is i think it sounds better when the player is unpacking th code and sending the sound via PCM.

Cheers guys, learning more every day on here.

[Tech-UK]

Yes, if you bitstream a DTS-HD MA track that is 192kHz, your receiver will playback at 192kHz, if your receiver has the full fat DTS-HD MA decoder.

My player only has an Essentials decoder so that is how I know.

Your BD player will have the full Dolby TrueHD decoder, so you should have no problems with TrueHD tracks, in that regard.

The sound difference you are hearing will most likely be down to decoding within the player and outputting PCM sometimes differs in volume to when bitstreaming.

I would make sure that DRC (Dynamic Range Compression) is set to off within your BD player as well.

[Tech-UK]

The Essentials decoder isn't that well documented, but what I have found is:

Downsamples 192kHz to 96kHz
Upmixes 5.1 tracks to 7.1
Does not support DTS 96/24 lossy tracks, ES flags etc. (ignores the additional data, so will only play a DTS 96/24 track at 48kHz)

[DGilberts]

Originally Posted by Tech-UK

The Essentials decoder isn't that well documented, but what I have found is:

Downsamples 192kHz to 96kHz
Upmixes 5.1 tracks to 7.1
Does not support DTS 96/24 lossy tracks, ES flags etc. (ignores the additional data, so will only play a DTS 96/24 track at 48kHz)

Thank you for your help. I was struggling to find details of the essential decoder as well. Might go back to bitstream and change to PCM when needed if you loose clarity in the soundtrack.

I'm going to upgrade to the NR1606 with Atmos next year. Do you think the seemless branching that Lionsgate use will be an issue with that receiver and my 7007 player?

[Tech-UK]

Originally Posted by DGilberts

Thank you for your help. I was struggling to find details of the essential decoder as well. Might go back to bitstream and change to PCM when needed if you loose clarity in the soundtrack.

I'm going to upgrade to the NR1606 with Atmos next year. Do you think the seemless branching that Lionsgate use will be an issue with that receiver and my 7007 player?

No problem.

As schan1269 has stated, newer players/receivers should have no problems, but like anything, you will only know if others have stated otherwise or when you test the equipment yourself.

Just another note on the Essentials decoder, I don't know if the decoder will downsample 2.0 DTS-HD MA tracks with an fs of 192kHz. The reason why I believe the Essentials decoder does downsample, is that DTS-HD MA from what I can see, doesn't support 7.1 at 192kHz, and the Essentials decoder upmixes 5.1 to 7.1.

I have a few DTS-HD MA tracks that are 5.1 and 7.1 of which feature a 96kHz fs and have no problems playing them back when decoding within the player, but I don't own any 192kHz DTS-HD MA tracks.