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Audio on prime time shows on ABC is out of sync. Just a little bit, but it's noticeable. News, day time shows, all seem OK.
Hi Becky, Kevin,
I tried OnDemand. Audio seems fine there. In summary, this is what I find:
Audio is out of sync for prime time shows only, either live or recorded on my DVR
Audio is fine for non-prime time shows, and is fine for prime time shows when watching OnDemand.
(Thanks for the PCM suggestion, not only have I tried that, but I think the above diagnosis rules out anything on my end).
Cox changed the SD channels in my area to HD. Both 7 and 1007 are HD.
The following are some useless fun facts to file and forget that I researched out of idle curiosity.
The only difference I can see between 7 and 1007 is that when changing from 1007 to 7, a black screen is briefly displayed with a darker black section the size of SD in the middle before expanding to an HD screen. Also, the info banner at the bottom of the screen appears and disappears quickly. However, there is no noticeable screen change when switching from 7 to 1007 except the info banner at the bottom of the screen displays for the normal length of time for a channel change. This appears to be true for the lower numbered channels and some of the higher ones like History Channel. But some channels like ESPN briefly display a black screen when changing in either direction between the low end channel number and the corresponding 1000+ channel. If you read this far, remember I warned you it was just useless fun facts.
Fun facts indeed! I think your SD channels are still the lower numbers: <1000. The brief-displays and quickly-disappear quirks may be attributed to the Auto-Tune to HD option on your cable-box.
I don't have Contour so I can't duplicate or test your scenarios. Perhaps you could narrow your problem to an option you have enabled on Contour, such as disabling Auto-Tune to HD and test for sync issues.
Does the sync issue also occur on Fox? Two broadcast networks format their signals in 720p: ABC and Fox. I understand Contour can upscale signals to 1080p, which no broadcast or cable station transmits. All broadcast and cable networks transmit in either 1080i, 720p or some variant of ED or SD.
You may just have a quirky cable box. I would exchange it first and then test for sync issues on the replacement box.
Hi, Bruce. What I was describing isn't actually an issue. The lower channel number and the 1000+ channel are both HD. Cox made an announcement when the SD channels were changed to HD. The screens look the same and both have the white on blue HD indicator in the information banner. If it says it's HD and it looks HD, then it must be HD ("Duck Theory").
As far as I know, channel change transition with a brief black screen is normal. It always occurs except when changing between some low channel numbers and its corresponding 1000+ channel. It just seems odd to me that the transition from low to high isn't the same for all channel pairs.
I just noticed that changing to any low channel number from any other channel has the brief black screen and brief banner. I never noticed that before. When changing to a 1000+ channel, the banner displays longer. Why? I don't know why. I typically watch the 1000+ channels because I set up Series Manager before Cox changed SD channels to HD.
Fox is channels 5 and 1005. When changing from 1005 to 5, the transition includes the brief black screen and quick banner display. When changing from 5 to 1005, the picture never changes and the banner displays for the normal length of time (well, normal for me). It's not an issue, just odd.
Thanks, on my box, the lower number and the higher numbers are both HD. This might be a Contour thing only, maybe older STB's still have SD in the lower number?
Interesting. i wonder if that's how they're "upscaling" to progressive scan,