Quote:
Originally Posted by BobearQSI
I'd really like those who also see the dropped frames to do the credits test I described in my previous post and see if, using a stop watch, the dropped frames come 2 minutes 47 seconds apart for you as well.
I started calculating a bunch of numbers, and came up with a theory. Now, I did these calculations with a lot more decimal places but I'm rounding and simplifying here for brevity.
NTSC 30 fps is actually 29.97 fps. Likewise, the HDMI standard defines 24p as really 23.976 fps. Now what if the Onkyo engineers made a mistake and said "30 is 29.97 and 24 is 23.97?" which is actually a common simplification (just search google for "23.97" and see how many people drop the 6). That means they would be playing the audio back at 23.97 instead of 23.976. The audio would play too fast by 0.006 fps. Well, how long is that? It is about 0.00001044 seconds. That means for each video frame passed straight through, the audio would get 0.00001044 seconds ahead of where it should be. The next question is how many video frames until the audio gets an entire frame ahead? Its 3,996 frames.
3996 frames just happens to be 2 minutes and 46.6667 seconds, which is pretty darn close to what I got on my stopwatch. So every 3996 frames, the audio is one frame ahead and so the Onkyo drops a video frame.
Its just a theory - could be a coincidence, could be an error on the Onkyo that hopefully can be fixed in firmware.
This is a bit disheartening. The more I read this thread the more the low price of the 609 makes sense. And we can forget about a fix because it's a 2011 model issue, and we're almost halfway thru 2012 now...
I thought this issue was resolved with the last firmware update in March although I have never experienced this issue with my 609 and Sammy Plasma.
__________________
42" 1080p 3D Plasma Panel
3D 1080p Blu-Ray player
7.1 1.4a HDMI 3D Pass-Through Home Theater System
Originally Posted by BobearQSI
I'd really like those who also see the dropped frames to do the credits test I described in my previous post and see if, using a stop watch, the dropped frames come 2 minutes 47 seconds apart for you as well.
I started calculating a bunch of numbers, and came up with a theory. Now, I did these calculations with a lot more decimal places but I'm rounding and simplifying here for brevity.
NTSC 30 fps is actually 29.97 fps. Likewise, the HDMI standard defines 24p as really 23.976 fps. Now what if the Onkyo engineers made a mistake and said "30 is 29.97 and 24 is 23.97?" which is actually a common simplification (just search google for "23.97" and see how many people drop the 6). That means they would be playing the audio back at 23.97 instead of 23.976. The audio would play too fast by 0.006 fps. Well, how long is that? It is about 0.00001044 seconds. That means for each video frame passed straight through, the audio would get 0.00001044 seconds ahead of where it should be. The next question is how many video frames until the audio gets an entire frame ahead? Its 3,996 frames.
3996 frames just happens to be 2 minutes and 46.6667 seconds, which is pretty darn close to what I got on my stopwatch. So every 3996 frames, the audio is one frame ahead and so the Onkyo drops a video frame.
Its just a theory - could be a coincidence, could be an error on the Onkyo that hopefully can be fixed in firmware.
This is a bit disheartening. The more I read this thread the more the low price of the 609 makes sense. And we can forget about a fix because it's a 2011 model issue, and we're almost halfway thru 2012 now...
I thought this issue was resolved with the last firmware update in March although I have never experienced this issue with my 609 and Sammy Plasma.
__________________
42" 1080p 3D Plasma Panel
3D 1080p Blu-Ray player
7.1 1.4a HDMI 3D Pass-Through Home Theater System


















OK...I guess I'll do the best I can until I can pick one up. Should I set it up at least 18" behind the couch/chair back or in front? They are both leather in case that makes a difference as far as sound reflections go.


