Audio over Tos/Fiber when HDMI is Used ?

PoitNarf said:

All outputs are live at the same time on the HR20. I run HDMI to my TV and a separate optical cable to my audio receiver; I get sound from both simultaineously.

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Just don't try to listen with both active (volume up), as the phase difference between them is something to behold. No wonder there are lip sync issues! (nothing to do with the HR20 in this particular case...it happened with every receiver/hd receiver I have ever owned. That's why they sell audio delay processors and why some HT receivers have built in variable delay)

I have noticed with my particular setup that there is less phase difference (lip sync) with HDMI than optical...but I'm NOT going to listen to TV speakers. As previously noted, lip sync is HIGHLY variable. It changes within channels, it changes across channels (some much worse than others...ESPN-HD is very bad much of the time, but not all the time), it changes HD to SD (don't see much of it on MSNBC or CNN).

Lip sync is all over the map, some due to the HR20 (as evidenced by doing trick play things and being able to make it better or worse) and some is source dependent (both D* , network, and our own local HT equipment).

I really think the only "true" solution is going to be adding a delay processor (and it will need considerable adjustment in response to the varying delay environments noted above). I think one of the popular devices is the "Felston" or some such...I just can't keep it in the ol' ******, because I'm in no hurry to buy one.

I cringe every time I see questions and comments about lip sync...because the nature of it is so complex...rarely do the "answers" consider all the variables that are impacting the problem, and none of the solutions work for all situations (except an external delay processor).