DTS DCH Driver for Realtek HDA [DTS:X APO4 + DTS Interactive]

[Ferather]

Just found one of these, talk about specs: Fibre Optic HDMI 18G Extender - Transmission of 4K content over 300m (lindy.com)

 

[ajf64]

Just found one of these, talk about specs: Fibre Optic HDMI 18G Extender - Transmission of 4K content over 300m (lindy.com)

question about interactive x for this to work will it say interactive X in windows settings or just interactive

 

[Ferather]

No just interactive, its setup with DTS APO4 (Ultra, Sound Unbound) processing pre-encoding, so you get the X system.
Analogue audio > APO4 > Interactive > Digital compressed 5.1 audio.

 

[ajf64]

got ya ty dose enhancements need to be on for that

 

[Ferather]

No problem, you can also uncompress for example, Dolby True HD as PCM (analogue) and send that to Interactive:X (my name for full system).
Personally I just use Potplayer to transcode unsupported formats into DTS-HD HRA, which plays on my Z906 (core).

Edit: Yes enhancers on.

 

[ajf64]

i got a z906 but i got the speakers hooked up from my pc through spdif to a onkyo dtr 9.1 receiver sounds amazing thx ultra 2 reciver really makes those speakers pop even more then the built in amp works amazeing

 

[Ferather]

I am waiting for more support to fully unlock lossless digital down SPDIF. My 889 can apparently do 8 channel PCM down SPDIF, I still don't know what my Toslink module is at this time.
The cable is a certified 125mpbs, I'm told it can do slightly more. The two main specifications (in short) for Toslink is rev A and rev B, 3.1mbps and 125mpbs.

Regardless, the driver will allow you to do lossless PCM, 192khz, 8 channels, 32 bit | For Interactive, lossless PCM, 192khz, 6 channels, 32 bit.
At this time to push PCM down SPDIF, you need WASAPI exclusive, else analogue is natively encoded to DTS Surround.

DTS Surround - 48khz, 6 channels, 24 bit, bitrate: 1510kbps (compressed).

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Droptek - Inject | Droptek - Fragments | Rogue - Nemesis

 

[ajf64]

I am waiting for more support to fully unlock lossless digital down SPDIF. My 889 can apparently do 8 channel PCM down SPDIF, I still don't know what my Toslink module is at this time.
The cable is a certified 125mpbs, I'm told it can do slightly more. The two main specifications (in short) for Toslink is rev A and rev B, 3.1mbps and 125mpbs.

Regardless, the driver will allow you to do lossless PCM, 192khz, 8 channels, 32 bit | For Interactive, lossless PCM, 192khz, 6 channels, 32 bit.
At this time to push PCM down SPDIF, you need WASAPI exclusive, else analogue is natively encoded to DTS Surround.

DTS Surround - 48khz, 6 channels, 24 bit, bitrate: 1510kbps (compressed).

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View attachment 205606

Droptek - Inject | Droptek - Fragments | Rogue - Nemesis

i mean it sounds amazing as is id love to see dts es 96/24 that should be pretty easy for dts to do such a under utilized sound format also i have top quality spidif ports and cables so im ready for anything you can try but i digress lol question do you have an 8 channel set up? I dont really hear a difference with enhancements turned on or turned off hard to tell if its doing anything if anything prob sounds a little better with it off i need some good test files kinda just got in to this after seeing your work

 

[Ferather]

No my system is a 6 channel system. Interesting, wonder what pure DTS and no Realtek would sound like, I might try it at some point.
You can also try the attachment, Computer\HKEY_LOCAL_MACHINE\SOFTWARE\DTS\APO. Let me know.



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For me its best turned on, I also cannot upmix without enhancements.

 

[ajf64]

i wish we had some one with 8 channel so we could see if it acually ouputs to the speakers properly through your method ill give that a shot and let you know how it works

 

[Ferather]

Found this for you all, I scanned it clean with 2 apps, installed and checked it, all working. I tested it on my ALC 889, and it makes updates from Realtek almost pointless.
Currently I am using my AMD GPU as an audio device via an HDMI extractor, the SPDIF does everything my 889 does, but its a better quality.

Comparing the two, with the same FX system (DTS + Realtek), low end and mid-range are similar, but AMD is better with high range.
Boom3D will give you roughly the same audio on your ALC, and works also with DTS (APO4 and Interactive).

Boom 3D 1.2.3

MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.

www.mediafire.com

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I will only be doing updates that contain updates from DTS, in general the Realtek updates do little to nothing for quality, sometimes much worse.

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@ajf64



Based on my tests it should do 8 channels, receiver dependant.

 

[ajf64]

o wow LPCM 5.1 thats dope ill have to look in to that i have a 5700xt i could use hdmi out on that i wonder if micro center has any of those i got to look really wish they just update the spec for spidif to 125Mb/s sad they limited fiber cable to such low bandwidth i can add 2 more speakers to my onkyo reciver i been thinking of buying a second z906 set and do a 5.2.4 set up and gettting a new reciver

 

[Ferather]

Most later HDMI's, if 1.4+, should do 8 channels out, but depends on GPU or HDMI audio device, I suggest HDMI 2.0.

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For my Z906, I use the .reg files in 'DTS Settings' (Personal), and use Interactive, as it fully supports it.



The unit stays in bitstream mode, always digital (like SPDIF).

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I made my own driver for the 'internal monitor' the unit comes with (no real monitor).

 

[ajf64]

Most later HDMI's, if 1.4+, should do 8 channels out, but depends on GPU or HDMI audio device, I suggest HDMI 2.0.

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For my Z906, I use the .reg files in 'DTS Settings' (Personal), and use Interactive, as it fully supports it.

View attachment 205902

The unit stays in bitstream mode, always digital (like SPDIF).

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I made my own driver for the 'internal monitor' the unit comes with (no real monitor).

View attachment 205925
View attachment 205926

hmm so it seems to be reading that hdmi almost like anologe can you use windows settings for speaker set up with hdmi also its kinda rare you see LPCM 5.1 over optical means you should be able to decode and passthrough just about any formate wonder what the restrictions are on the quality for that PCM

 

[Ferather]

Well to clarify, around 1997+, Toslink updated to what I am calling revision B (or Toslink 2.0), which has a specification of 125mbps (5x DTS-MA @ 24.5mbps, or 5x 32 channels, 48khz each).
IEC 60958-3 specifies up to 768 kHz sampling frequency, which is roughly HDMI 1.4, IEC 61937 specifies multichannel sound, IEC 61937-3 is for multichannel AC3, E-AC3.

So far I have not been able to find an IEC thats specific to the lossless TrueHD and DTS-MA, and might explain why Windows and apps dont like TrueHD.

S/PDIF - HwB (hardwarebook.info)

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Here I re-programmed the registry, and without an EDID (see here), I was able to setup SPDIF as HDMI.
However to complete the setup, Windows needs to be re-programmed to support it.




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Fibre Optic HDMI 18G Extender - 4K content over 300m
Multi-mode Optical Fiber - Wikipedia

 

[ajf64]

will audio play from it when masked as hdmi

 

[Ferather]

Turns out you don't need to trick Windows, I was playing with Kodi and noticed you need WASPI mode to passthrough DTS-HD MA or TrueHD.
Directsound is for legacy (Dolby Digital, DTS Surround), as I noticed the lossless formats disappear if used in Kodi.

So I put Potplayer into WASAPI for passthrough, with both options on, and data is sent.



My Z906 does not decode the data, so I just get noise.

Lossless on SPDIF

Watch "Lossless on SPDIF" on Streamable.

streamable.com

Sorry for the low volume, the phone has cancellation.

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Surprisingly, the extractor will not send lossless down its SPDIF, but will send 8 channels PCM.
My ALC 889, sends all of it, with the same cap on PCM, which is think is the Z906.

 

[ajf64]

wonder if you can decode it on the pc and pass it though as pcm that could open up alot of possibilities i think the main issue there is the z906 not haveing decoders for any of of those formates

 

[Ferather]

Z906 doesn't support full multichannel on PCM only downmix to stereo then expand matrix, you are otherwise correct. At the moment I just transcode to DTS-HD HRA.
Or as you said decompress it to PCM, then send that in directsound to SPDIF, will do DTS Interactive:X.

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Pulled off a better recording using my microphone, although there is gas works outside, I couldn't be bother to wait.

Potplayer - SPDIF [Microphone]

Watch "Potplayer - SPDIF [Microphone]" on Streamable.

streamable.com

Note, the audio portion of eARC and Displayport is ~37mbps.

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The manufacture in this case, on SPDIF, supports the normal standard, not the full capability.

Commonly seen on SPDIF:
2 channels PCM, DTS-Surround, Dolby Digital. 2 channel PCM @ 192khz, 24-bit is 9216kbps.

What can it do?
Well, up to 125mbps, and supporting all modern formats.

What is restricting the full rate?
Manufacture support, in short, PCM from Toslink can easily be routed to a multichannel PCM processor.


Also note, with HDMI, 2 channels is minimum, everything else is optional.

Digital compressed audio, should only be limited by transfer bitrate, there should be no processing until the receiver.
In terms of total aggregate sample rate, again this is down to the manufacture, once it's decompressed.

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Audio Bit Rate and File Size Calculator (theaudioarchive.com)

 

[ajf64]

thats what im saying even at the standard bit rate it should be able to pass through other formats specially streaming formats for instance

Dolby Atmos audio in Dolby Digital Plus is typically encoded at bitrates between 384 and 768 kbps.
5.1-ch audio in Dolby Digital Plus is typically encoded at bitrates between 192-256 kbps

these are trival bit rates and way under what even dts interactive sends even some True HD signals could in theroy be sent

Dolby TrueHD bitrates average around 6,000 kbps for Dolby Atmos at 48 kHz

tho i seen some TrueHD as low as 1500 kbps

at this point i really just want dts 96/24 such a under rated and under used format for how good it sounds even if its not ture 96/24 the difference is pretty drastic over normal dts

 

[Ferather]

TrueHD is 18mbps max, DTS-HD MA is 24.5mbps max. DD+ is 6.144mbps, easily sent down any SPDIF-Toslink currently doing 192khz 2 channels (9.216mbps).
Z906 will do 96/24, I made my own DTS-HD MA files with 96/24 core. The core was 12mbps I think, if not then 18mbps, which was sent.

I can also confirm the Z906 does indeed downmix multichannel to stereo then matrix expand, rather than dump.
In untouched mode, pure stereo is sent to the extractor, and the rear and centre is missing.

Also, it turns out the extractor doesn't like untouched mode, its sending lossless on optical with it unticked. Exact same noise (cant decode).

 

[ajf64]

i wish interactive could be set to 96/24 passthrough works just fine on windows they just need an encoder or even DTS ES

 

[Ferather]

I have emailed DTS about that exact subject (and will again), I'm pushing for an app with multiple encoders from DTS, with variable bitrate output.
For example, lets say you have a Toslink module that is old, or out of spec, but it can do 9mbps, you choose 9mps.

The extractor reseller is not quite what I expected, I am having to explain a lot xD.

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Logitech Z906:

- DTS Digital Surround, 96khz, 6 channels, 24 bit: 1509kbps (max standard)
- Dolby Digital Live, 48khz, 6 channels, 16 bit: 640kbps (max standard)

- 192khz, 6 channels, 32 bit: 36864 kbps
- 96Khz, 8 channels, 32 bit: 24567 kbps
- 192khz, 6 channels, 24 bit: 27648 kbps
- 96Khz, 8 channels, 24 bit: 18432 kbps
- Anything else below these specs.

I suggest 32bit with FFmpeg (Potplayer).

Two options, digital transcoding or mulichannel PCM, handled in downmix then matrix expand (requires WASAPI).
My extractor can be set to 5.1 PCM (system wide), I have not fully tested it yet, should work.

Note, DTS Interactive has roughly the same input limit as my Z906 for PCM.

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- Dolby TrueHD, 192khz, 8 channels (more with Atmos?), 24 bit: 18mbps.
- DTS-HD MA, 192khz, 8 channels (more with DTS:X?), 24 bit: 24.5mbps.

Note, DTS encoded audio also contains a DTS Surround core.

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So it turns out the stereo setting needed to bitstream on both SPDIF and HDMI, threw me off, and 'final out' with PCM is downmixed, even with WASAPI, not the Z906, I apologize.
The bi-exact mode on the extractor has become a bit interesting. I downloaded the video of the AAC Multichannel with callout, for further testing.

So the above bitrate limit, so on, should be the device's limits (before final out), what's interesting was the same results with AMD and HDMI (1.4a) and ALC and Toslink (??), and also DTS Interactive.

Setting up the extractor for 5.1 PCM (no interactive), it does indeed seem to send 6 channel PCM down Toslink as the specs for the unit states (its internal programming is limited to 6 on Toslink).
To make sure, I used WASAPI exclusive, to see the duration of the detected stream, as the channels where played. Resulting in only 2 in playback, but the full PCM stream active.

So in short, it really is down to how the manufacture selects the Toslink module and what total bitrate they intend to support (up to 125mbps) and how it works.
Based on previous research, I would guess that HDMI audio, in many ways, is just SPDIF with a different set of features and connector.

 

[ajf64]

hmm do you know of a easy program to test bandwidth of a spidif port the good part for me is i go from my pc to my oynko receiver even tho its older it was like 3500$ when it was new so i would be really interested to see what those ports can do because the amp its self can do 192/24 with analog db25 connector but its almost im possible to find out and i lost mine basically the same as the analog connection for the pc to the z906 but connects to amp with a db25 pin connector so if we could get it to decode and send a higher quality 6 channel pcm signal that could work almost have to make a custom encoder at that point that's why i would just kill for the dts 96/24 and call it a day at this point i will say being able to use all the speakers with a better amp is kinda nice i even got the sub hooked up and it all works great even with 150 watts per channel to the satellites no issues at all thx ultra 2 amp so fits the speakers really well

 

[Ferather]

Whats the oynko receiver? I can see that it can do from the model and suggest based on its specs. Unfortunately there is no way to test what module you have (this is the bigger part of the problem).
Sony-Phillips and Toshiba did an amazing job with SPDIF and Toslink, but did not release revisions (versions), with specific minimum standards, and optional standards (like HDMI).

192khz, 2 channels, 24 bit (9.216mbps) is about as much confirmation as I can give you, if you see this option for SPDIF, there is your minimum.

Edit: 48khz, 6 channels, 24bit is 6.912mbps | 48khz, 8 channels, 24bit is 9.216mbps.