What is the idea?
TVBOX --> Reciever --> 720 --> Display
Adding the 720 there would introduce some challenges with audio sync afaik unless there is a way to do double Lip Sync.
TVBOX --> 720 --> Reciever --> Display
Would be a cool feature since it could show the TV signal in PiP but i am not sure it would be a killer feature. What is you suggestion?
It's an intriguing idea if I'm honest, though I'm not sure how well the idea could be executed so that it would work well with the majority of people.
That center of equipment that does exactly that in my setup (and the setup of the majority of people I guess) is my receiver/sound-processor. It is the HDMI switch and most of my electronics, I can control by using the universal-controller that came with my receiver.
Of course, having the brute-force of a Xbox to do all nice fancy overlays over my inputs would be quite nice and something new. Apart from overlaying skype, new-email notifications and online chat (and some other services), I don't think it could do much more than that - if it is indeed going to sit between receiver and display. I don't think it can physically remote-control equipment that is connected to the receiver either - though I'm not sure on the boundaries of HDMI. I would think it could be quite a mess though. It becomes an even bigger mess if you factor in old equipment that only supports older version of HDMI.
I think the more obvious question though - would this be feasable?
Code:
TV-Box ------> Receiver ------> Xbox ------> Display
/______________________\
*Left: HDMI Input
*Right: HTMI Output
This illustration shows IMO the only way such a set-up would really work. This way, the Xbox is always there and able to do overlays, regardless which source input the receiver is dialed into. However, I do think there is a problem in a practical sense:
First of all, if a skype call comes in or if you want to use a service on the Xbox and your receiver has the TV-Box input active (and that one is running), then of course, the sound would be exclusive to that input. There's no way, you could force the receiver to overlay the sound as well, or for it to switch to an alternative source where the Xbox is active. I'm not sure on the newest HDMI interface specifications, but I'm doubtful if this would work as perfect assuming average joe with his set-up has everything to newest spec. In most likelyhood though, he won't. What happens if receiver and/or tv-box are not compatible with any remote-control protocol being sent over HDMI from the Xbox?
Trying to do "everything" from your Xbox while relying on HDMI to pass along your control commands just sounds a bit too good to be true. For it to work to any acceptable standard, it would have to be flawless.
At the end of the day, while I'm sure it would offer a high tech experience (and with Kinect, potentially Minority Report kind of futurestic feature), it just sounds a bit messy. IMO this would work well
if the Xbox would be the HDMI switch. But given how much money people spend on receivers (cheap or expensive), I'm doubtful if this will happen...
My receiver has independent optical input channels so I was going to pipe the sound from the Xbox backwards through to the receiver using optical. It's a little more complicated but it is as good as the other options. I figure it won't add too much latency in any case.
And limit yourself to DTS and AC3 instead of DTS-HD and TrueHD? Optical was good while it lasted, but I don't think this is a solution that is realistic nor one that would be getting the thumbs up from consumers that are at least a bit used to just using HDMI cables. I don't think it would be a big problem in using HDMI if the output of the Xbox only transmits audio. One way or another, this wouldn't solve the necessity of having to remote-control your receiver to select the correct input if a skype call or something comes in.
And depending on what kind of receiver you have, transitioning between source is anything but seamless. In my case, it can take up to two seconds (together with the projector) where the screen turns dark and the sound comes back. Regardless how hi-tech the experience would be, having those "blackouts" while your receiver follows the commands of the Xbox, it wouldn't be worthwhile.