XBOX ONE bitstream DTS-HD Master Audio and Dolby TrueHD lossless formats?

So much misinformation here.

DTS (Dolby Digital also) is a lossy format which means it's a compressed format just like the mp3 format is. DTS-HD Master Audio is a lossless format which means it is uncompressed. Unfortunately the xb1 does not pass thru DTS-HD or Dolby TrueHD to a receiver.
The xb1 does the encoding and passes the sound as 5.1 or 7.1 PCM uncompressed.

5.1 uncompressed sounds the same as DTS-HD. It's just a matter of which device does the decoding, the xb1 or you receiver, and in this case it's the xb1 that does it, so you should use it instead of the plain old lossy DTS format.

One question, why have hdmi from receiver to tv AND an optical to tv as well? Hdmi should carry the audio, so not sure why you would use optical to tv as well.

If your watching blu ray movies I would stick to uncompressed. Blu ray movies almost always have a lossless track (Dolby TrueHD or DTS-HD master audio) which is a clear step up from normal Dolby digital or DTS. Uncompressed should pass the lossless tracks,
where Dolby digital or DTS will not. Don't worry about the Dolby or DTS light on your receiver. Only reason that they may sounds better is IF you are usb a surround processing mode that only works on a bitstream signal.

[quote user="OneBgBdArtemis"]Have you perhaps heard of DTS? Or...say....7.1.....or 6.1.....or pro-logic.....or...you see where I'm going here?[/quote]

Clearly you know nothing about surround sound. - Pro-logic (and Pro-Logic II) is even worse than DTS and Dolby Digital.

The current best lossless sound formats (found on Blu-Rays) are Dolby TrueHD and DTS-HD Master Audio.

Thanks for the feedback. My receiver is a Yamaha RX-V373 and it does indeed support Dolby TrueHD;

HD Audio format decoding: Dolby TrueHD and DTS-HD Master Audio; Dolby Digital Plus and DTS-HD High Resolution Audio

To Dayton; so it does appear multi channel on the receiver display but the format is PCM. Seems strange. Again, with the HDMI passthru, and the TV function it is still PCM. But if I hook my Sat receiver in directly the A/V receiver displays Dolby Digital.

That's not right. I connect with a hdmi cable, not with an optical cable. The problem is that you do not add the Dolby true hd and dts hd master audio format to the xbox one x console bitstream part.