Windows 10: Audio Driver(s) config for S/PDIF passthrough for DTS/DD o/p

This has been driving me crazy for weeks.. since I decided to fix this long-standing issue

Problem: I am unable to get DTS/DD 5.1 audio from the motherboard S/PDIF output, when playing media via VLC 3.0.4 or Media Player Classic, from downloaded media/test files or from DVDs.

What it definitely isn't: S/PDIF - I can get PCM just fine; Windows generally - audio device manager format test outputs DTS and DD test audio to 5 channels correctly.

Key Observation: I have a GTX 1080 Ti which feeds HDMI to a Panasonic TV. All the nVidia drivers were installed, even though I did not use the TV audio (preferring the 5.1 out of my Denon AVR-1306 receiver via S/PDIF).

On updating the graphics driver recently (to 416.34) I accidentally omitted the HD Audio driver. Before rebooting I realised this and decided to retest VLC audio output. With the Denon set to decode DTS only I was surprised to hear audio from the DTS 5.1 demo media I played. Unfortunately it was only stereo.

I tried changing the DirectX speak config from Stereo to 5.1 in VLC and then I received nothing. So I rebooted, thinking that would clear out any lingering driver traces.

Unfortunately, on reboot I cannot get any DTS output (again)... let alone 5.1, but because nothing else changed that VLC config probably isn't the (whole) problem either .

Audio device a management has the Realtek High Definition Audio Digital Output as default and all others - Realtek Speakers, Panasonic-TV, 3 x Digital Audio (HDMI) with Microsoft Drivers - disabled. The Realtek HD Audio driver is 6.0.1.8339

And FWIW, System services does have DTS APO Service running and there don't seem to be any problems with the components it depends on (RPC, DCOM Server, RPC Endpoint mapper, Windows Audio Endpoint Builder"

Question: if I could be more specific I would *Wink - it's just: what do I have to do to get DTS/DD 5.1 out of this system that is clearly capable of doing so and only seems not to because of some configuration issues. And/or how would I trace the problem further?

TIA - J

:)

 

DTS sound over s/pdif. Windows 10

I'm experiencing something similar, where Dolby Digital 5.1 works through S/PDIF optical, but DTS Audio does not. I'm running Windows 10 64-bit Anniversary Update with the latest Realtek HD Audio drivers.

I get no sound when testing DTS Audio in the Realtek Digital Output properties -> Supported Formats tab.

 

Unlocked Realtek HD Audio Drivers for Windows 10 (Dolby Digital Live/DTS Interactive)

windows 10 build 16184 fixed yeahhhhhhhhh
""

• Some audio drivers have an “encoding Audio Processing Object” feature; this is commonly known as “Dolby Digital Live” or “DTS Connect”. This takes the output of the Windows audio engine mix, encodes it (as Dolby Digital, DTS, or some other format) and sends it out over a S/PDIF optical link for decoding by an external audio receiver. An issue was introduced which resulted in this feature no longer working, which is now fixed.
• "

 

DTS Audio Control and headphone plug

Hi Terry,

This issue with the DTS Audio Control can be caused by system corruption on the application itself. As an initial troubleshooting step, we suggest that you uninstall the application. Here's how:

• Type DTS in the search field at the task bar.
• Right-click on the DTS Audio Control in the results.
• Click Uninstall.
• Once done, proceed with installing it back.

You can also check out with HP as the manufacturer of this application for any updated drivers that can help to resolve the issue.

You may try to plug in the headphone again once the issue has been resolved. If it is the same, try a different headphone and let us know about the results.

Should you need additional assistance, do let us know.