Originally Posted by Artzilla
Dolby Digital is 5.1 and dts can be up to 6.1 or 7.1 - my memory fails me at the moment and I'm not saying the TV would output 6/7.1.
What I am saying is that all of the different formats above and beyond are being mixed down to two channel, unless otherwise noted in the owners manual. I’m seeing this in the manual on pg. 22.
FWIW my confirmation of the input signal is not assumption.
I'm not sure if it's just a point of interest to you or if you have one of these sets but if you do, check your audio output settings on the tv.
Yes I understand where you’re going, but I’m referring to the Sony manual pg. 21 an 22.
Based on what you indicated the manual said, you would only get 2.0 output if you select PCM regardless of whether you are using HDMI or Toslink.
Yes, but I didn’t say “if you select PCM”, I was saying “I see reference to two channel output”. I’m not talking about settings. I’m talking about the Sony TV spec..
To clarify: Settings matter
The settings dictate what the tv outputs. If you select PCM it will be a 2 channel output. Dolby Digital is 5.1 as long as the source is 5.1.
It seems you may have thought I was referring to settings in the pre/pro or receiver - I was not. I am referring to settings to get 5.1 audio out of the tv. Whatever DSP is applied on top of that is secondary and not part of what we're talking about.
In the TV sound settings you must choose from 3 audio output settings. In the Sony it's under: Settings - Sound - Digital audio output. (Don't hold me to exact verbiage - I'm doing this on the fly without access to the tv.)
Straight out of the box, a default setting is already active as there is no "none" option. It is probably PCM as that is the one most likely to work universally and for the folks who have older gear or a basic sound bar etc.
The exact terms escape me at the moment but I believe the first 2 are "Auto Digital" 1 & 2. The first one outputs the uncompressed bitstream from the tv so your receiver decompresses the signal and outputs whatever format it is fed. The second IIRC is a hybrid that sends some material as bitstream and some as PCM depending on the source. The third option is PCM, which apparently outputs only 2 channel. Never tried it myself.
To sum up:
Either HDMI or optical should provide 5.1 audio as long as you do not have PCM selected, and the source (internal apps, BD players, Game Consoles - anything fed directly into the tv) is outputting 5.1. I believe (but am not certain because I have not tested it) that the source device should be set to bitstream as well. YMMV. I just know that my PS4 fed directly to the TV results in 5.1 output to my pre/pro but don't recall the audio output setting on the PS4. I also get 5.1 from internal apps like Netflix, Prime, Vudu etc.
The bottom line answer to your question is yes, you can get 5.1 output from the tv via arc. This will likely vary from one manufacturer to another and also between different models by the same manufacturer but I would venture to guess that most current tvs, whether Arc or eArc would have 5.1 output or pass through capability.
Bear in mind I am only dictating what the 930e can do. They are out of production and you'll probably be hard pressed to find one new so unless you're shopping refurb or pre-owned this info is little more than a pointer of things to look for if you are considering a Sony product.
I hope this clears things up and helps you in your shopping.
To further ease your mind check out page 20 - bottom right of this link. It mentions 2 channel - but that is only in reference to PCM. Dolby Digital, Dolby Digital Plus and DTS are multi-channel formats.