dts 96/24

[oldgame]

Why does my blu-ray player down sample dts 96/24 5.1 to 48? It passes 2 channel no problem and multi pcm 96 @ 5.1 no problem but always says with DTS 96/24 48. This is through the hdmi. Years ago when I was using the analog outs to my Pioneer reciever it would decode the full 96. Just seems odd to me. I thought hdmi would pass anything. I was reading something about copy protection causing this, does that sound right?

[solarrdadd]

you need to let us know what's in the chain from player to display. by brand and model there may be a very good reason why this is.

has it always been this way or is this something new? give as much information as you can.

[oldgame]

Have a Pioneer dv 45A and a Marantz bd 7004 Going to an Integra 50.4. Both players downgrade only DTS 96/24 5.1. Everything else plays perfectly up to 192. Like I said years ago using 5.1 multi out decoded it perfectly.

[Tech-UK]

Does your player and/or receiver have any reference to DTS-HD Master Audio Essentials?

Does your receiver show 7.1 when playing a DTS-HD Master Audio 5.1 encoded disc?

Are you outputting PCM or bitstreaming to the receiver?

[oldgame]

Ok it seems that it plays blu-rays at 96/24 but down samples dvd's. It must be the dvd copy protection. I only own 2 dvd's with dts at 96/24 so it's no big deal, was just more curious than anything why it does it do dvd's.

[oldgame]

Tried the disc's at my uncles who has an oppo 105. Same thing happens, it passes the 96 to the reciever then the reciever downsamples it to 48. But there really isn't to many dvd's with dts 5.1 @ 96/24. But it doesn't downsample blu-rays, even he couldn't figure it out.

[Tech-UK]

Just looked at the manual for your player and it seems to only have an Essentials DTS decoder. This doesn't support DTS 96/24. So decoding in the player will only send 48kHz. Is your player set to HDMI Multi (normal) or (LPCM), and is down sampling set to off?

And by the way, what DVD(s) are you playing that feature DTS 96/24?

When you refer to Blu-ray playing back at 96Khz, I presume they are lossless or PCM tracks i.e. not DTS 96/24?

If you are bitstreaming, then try these settings on your receiver:

Listening Mode: Direct or DTS 96/24 (only when playing back the DTS 96/24 DVD)

Fixed Mode: OFF or DTS (only when playing back the DTS 96/24 DVD)

Or try:

Under Listening mode preset - DTS/DTS-ES/DTS-HD - Straight decode or DTS 96/24 (should be one of the settings) (Again just use this setting for 96/24 DVD)

[oldgame]

The only 2 I have is a DTS demo disc and Megadeath Peace Sells. I have no problem playing anything up to 192. It is only dvd's with dts 24/96 5.1 that downsamples. Iv'e read that copy protection on dvd's is what causes this, hence I think that's the problem. So there's no problem with blu-rays,sacd's or dvd audio, so there is no concern. It was just a curiousity that I stumbled upon.

[Tech-UK]

Originally Posted by oldgame

The only 2 I have is a DTS demo disc and Megadeath Peace Sells. I have no problem playing anything up to 192. It is only dvd's with dts 24/96 5.1 that downsamples. Iv'e read that copy protection on dvd's is what causes this, hence I think that's the problem. So there's no problem with blu-rays,sacd's or dvd audio, so there is no concern. It was just a curiousity that I stumbled upon.

Ok.

This is quiet interesting:

http://forums.highdefdigest.com/home...s-96-24-a.html

[oldgame]

Originally Posted by Tech-UK

Ok.

This is quiet interesting:

http://forums.highdefdigest.com/home...s-96-24-a.html

Makes me feel better. Thanks.

[BIslander]

I am a bit confused about which devices are doing the decoding in the examples here. With DTS 96/24, the core is 48 and the extension has the additional data. A DTS Master Audio Essential decoder only processes the core. So, if you have a player with an Essential decoder, you should bitstream the track to a processor with a fully functional DTS decoder. Of course, a Pioneer DV 45A does not have a DTS-HD decoder of any sort and it doesn't have HDMI. So, what sort of playback are you doing with that device?

Lots of players have Essential decoders. Some receivers also have decoders that cannot process DTS 96/24 extensions. Perhaps the Integra has such a limitation. I seem to recall reading that's the case with some Onkyos.

I doubt the issue is copy protection. If copy protection forced the output of DTS 96/24 to 48, why would the format even exist? No one could ever use it.

[Tech-UK]

BIslander, I have been trying to diagnose the problem, but the OP hasn't actually posted what settings they are using.

I too don't believe its down to copy protection, its either a setting's/decoding issue or the DVD's they have been playing aren't proper DTS 96/24 tracks as mentioned in that link I posted. How true that is I do not know.

[BIslander]

It seems most likely that the device doing the decoding can't do DTS 96/24, a format that was rarely ever used.

[oldgame]

Remember this isn't DTS Master Audio, its DTS 96/24 only found on dvd's and also very rare. I read an article once about 96/24 5.1 on dvd and they said it was false advertising because there was only one reciever that could decode it and everybody else would hear the downsample.

[oldgame]

Originally Posted by BIslander

It seems most likely that the device doing the decoding can't do DTS 96/24, a format that was rarely ever used.

My Marantz and the OPPO passes the signal. The receiver even lights up the 96/24 in the display on the reciever. But if you hit display on the remote to see the output it says 96/24 48.

[BIslander]

The article you read saying only one receiver could process DTS 96/24 is clearly not correct, as many AVRs have had such decoders. My Denon has one. I was going to give it a test from both a DVD and a BD player, but I can't find the one disc I have with 96/24 encoding. These days many DTS-HD decoders lack that capability since it is such a rarely used format.

While this is not about DTS-HD, that's still the decoder being used to process the 96/24 track. Devices only have one DTS decoder, which is used for all DTS processing. When the first Essential decoders came out, most manuals explained that some formats such as DTS Neo:6 and DTS 96/24 were not supported and that such tracks should be decoded elsewhere.

The fact that your receiver reports the input is DTS 96/24 doesn't necessarily mean it can decode it properly. It may just report detecting that flag.

If you are bitstreaming from the player for receiver decoding, the player capability is not a factor. The player is simply sending the track to another processor for decoding.

[Tech-UK]

Originally Posted by oldgame

My Marantz and the OPPO passes the signal. The receiver even lights up the 96/24 in the display on the reciever. But if you hit display on the remote to see the output it says 96/24 48.

Oldgame, have you tried activating the DTS 96/24 listening mode, and see if it reports 96/24 96?

Your receiver has plenty of settings regarding codecs, you could try playing around with them.

Its also best to be running the latest firmware on all equipment if possible.

[oldgame]

I posted to DTS themselves. Let's see if they answer me.

[BIslander]

What does your Integra manual say?

[Canada]

The receiver needs to be able to pass 96/24. Even with my Oppo sent to put out PCM my receiver was able to output 96/24 Dolby True HD.