here is my conundrum:
Playbar ---via optical cable--- TV ---via HDMI--- PC
+ 4 Play 1 speakers (2 in surrond mode with Playbar).
When I play a movie or a game stored on a PC it would seem I don't get DD sound:
I play a movie which has DD and in Sonos app>About I don't have "Audio In". I have Play 1: Living Room (LS) and the same one but (RS) and on both I have "WM: 2". I don't have the Playbar at all.
What I know for sure is that the TV (Sony Android) does transfer DD to playbar; meaning, there is an issue between the PC and the TV.
Could you please help?
Getting DD sound
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You wouldn't have a "line in" showing up unless you had something plugged into a "line in", which you don't even have in your setup.
Are you sure that your PC, which I think is connected to your TV by an HDMI cable is putting out a Dolby Digital Signal? And if so, are you certain that your TV is set to directly send a Dolby Digital signal out through the optical out connection?
What happens when you play a movie on your TV? Does it show up in the Sonos App correctly?
I think that you need to check the audio settings on your PC, to ensure that it is sending that Dolby Digital signal out through the HDMI.
You would need to find out if...
1. Your video card is capable of outputting Dolby Digital audio through the HDMI connection (this might vary among cards)
2. Your program for playing the video is capable of sending the Dolby Digital audio from the file directly to the HDMI output, skipping the Windows sound system and PCM conversion
I am certain that the TV sends DD because it was confirmed by someone with the same TV model.
I am not sure about playing a movie on your TV. On which media? I play all my movies from the PC.
My videocard is MSI GeForce GTX 960 GAMING 2G 2GB GDDR5. Do you know does it pass DD on via HDMI? I can't find that info anywhere.
I can use whichever video player you guys think should work. I am mostly using VLC though.
I'm going through a very similar issue. I'm also using a MSI video card, but in my case a GeForce GT710.
Here's what I noticed looking at the Windows 7 sound settings on my HTPC. If I have the audio set to go out to the TV over HDMI I notice that the sound settings in Windows shows only 2 channels. I've opened a support ticket with MSI asking them to confirm which audio formats they support over HDMI for the GT710. My TV is an LG OLED65B6P and I can confirm that it supports DD 5.1 over it's optical out port.
So, I've dropped the HDMI option and am now trying to get 5.1 surround directly over the PC's optical out port. But surprisingly the Playbar still only sees stereo when getting the audio stream from the PC's port (Realtek chipset on the motherboard).
It has me stumped as I'm 100% that the movie is encoded in AC3 at 48KHz. This should work! In fact if I reconnect my old Yamaha AVR to the optical cable I do get 5.1 surround. So, IMHO there's something not right with the way the Playbar detects the AC3 stream.
I've contacted MSI support. They confirm that NONE of their video cards support Dolby Digital over HDMI.
Now the question is do any of the video card manufacturers support DD?
So, it cost me $100 for the new card to get DD 5.1, but I now have a video card that'll do 4K and supports HDMI 2.0b.