Originally Posted by paulinns
Hi guys! im new and i hope not to break any rules by making this post.
I have a little problem with my oppo 103 the receiver and the projector, hope you can help me. Ok it goes like this, i use the split av hdmi oppo video option (it says in the manual that is the best option for video quality and sound loss) so i connect output 1 hdmi from the oppo to the projector directly (video) and i use the output 2 hdmi from the oppo to my receiver (audio) and i have a audio delay... altough i can use the receiver sync option or the oppo sync option to adjust the delay i get crazy trying to adjust it, and i cant be 100% sure if its sync or not. The only thing i came up to fix this is to connect hdmi output 1 and 2 directly to the receiver and then use the hdmi output from the receiver to the projector but in this case im not sure if i have a quality dropped cause (altough i disabled the video processing options in the receiver) i dont know if the receiver does something with the video signal, the thing is that i bought this oppo (i live in Argentina and its way too expensive) for the qdeo marvell video and i want to be sure if its function 100%
ok guys thats all i hope not to bother you.
Thanks very much.
First of all, welcome to AVS and to this Thread!
The "normal" way to hook things up is to use only the HDMI 1 output. Run that to your AVR and run HDMI from the AVR to your projector. So if that works for you, then keep things simple.
The main reason to use the dual cabling hook up is if you want to send video to your projector (such as 3D video) which your AVR can not pass. In that case you use HDMI 1 to the projector (for video) and HDMI 2 to the AVR (for audio). Set Split A/V.
In general, if the OPPO is set to output 1080p then the AVR will find it has no work to do as far as the video is concerned. Which means most AVRs will pass on that 1080p signal to the TV without molesting it.
Now, if you wan't to continue with the dual cabling solution, your A/V sync problem may be due to the "helpful AVR" problem. The AVR does not know it has been bypassed for video, and so it applies a chunk of audio delay to compensate for its own, internal, video processing time -- just to be helpful -- which screws things up of course because the video is not going through it to be processed in the first place.
Another possibility is if the AVR is trying to apply "automatic lip-sync" correction. This sounds great but is a lot more simple-minded than you'd expect. What this does is cause the AVR to inquire of the TV (whatever is attached to its HDMI output) how much audio delay the TV would like to have added to compensate for video processing time INSIDE THE TV. The problem is that many TVs just send back a single, constant delay value, regardless of the type of video being fed to them and how they are set for video processing.
So, turn off auto lip-sync in the AVR. And then also try to convince the AVR that it is not doing any video processing. This might be done by disabling the AVR's video output, or by setting the AVR to "HDMI pass-through" for video.
Finally, some Displays get slow for video processing if fed 1080p/24. This can screw things up if you set sync adjustment for 1080p/60 content and then play some 1080p/24 content. Try setting 1080p/24 Output to OFF in the OPPO so that 1080p/60 gets sent instead.
The last advice is to use a calibration disc. There are A/V sync tests on Spears & Munsil v2, Blu-ray (available from the OPPO Digital web store), but I particularly like the sync test found on Disney's "WOW World of Wonder", Blu-ray, available from Amazon -- one of the easier such tests to read. The problem is that real world content sometimes has inherent sync error. In particular, if you are seeing sync vary between scenes that is almost certainly something screwy in the content. There are lots of reasons why this happens, and it is far more common than most people realize. The point here is that you need to adjust A/V Sync using content of known sync quality -- which means a calibration disc.