Originally Posted by st_o_p
I'm not surprised you cannot forward audio from HDMI to Optical - the same way you cannot do it for video (HDMI to Component), manufacturers are not supposed to do that I think.
While it makes not much sense to have the display convert the incoming HDMI video signal to an outgoing component video signal it does make very much sense to "loop" the incoming HDMI audio data to the optical output (still digital, though perhaps recoding has to be done)!
The reason being using the TV as a very convenient channel/input switchbox for the surround sound amplifier - the audio wouldn't have to be switched at the amp and it would always be lip-sync, regardless of the TV's settings.
Now we have the situation that your audio system may have to provide a different lip-sync setting for each input (sat receiver, game console, PC etc.) as each device may have/require its own video settings that increase or decrease the TV's input lag. Modern LCDs with LED local dimming like the Samsung A950 or Sony XBR8 can have a very high input lag when all bells & whistles of the display electronics are activated!
Furthermore you now have to either use at least three remotes (source device, TV set and audio system) or buy a universal remote to cope with the input switching alone!
The industry fully well knows all of this and they gladly sell you extra after extra if you aren't satisfied with 50ie-style stereo sound anymore...
The intention of the optical out is to get audio to your receiver for content that is being played by the TV (i.e. over-the-air or video files played by the TV from a computer multi-media storage). That is what I use my 8000 optical out for.
Correct - because on most TVs this output is unnecessarily limited.
Any signal that you feed to the TV from external box, you're supposed to pass through the receiver where the receiver will get audio and forward the video to the TV (i.e. HDMI cable box to receiver and another HDMI from the receiver to the TV; or if you're not using HDMI, use separate video cable box to TV and separate audio cable box to receiver)
You still may have the lip-sync problem and you don't really need more than a single HDMI input at the display then (it truly becomes a monitor in this situation).
This isn't optimal by any means, IMHO.