Re: [CGUYS] Out of sync

2008-09-05 Thread gerald
is this an automated device, or one that must be adjusted by a human? i watched an event on tv last night that was off sync by close to a full second. At 06:51 PM 9/4/2008, you wrote: Yes, and it can be had for less than $8,000. Peanuts in the broadcast budget. See product notes below signature.

Re: [CGUYS] Out of sync

2008-09-05 Thread Richard P.
This is adjusted by a human so it is subject to human error. Adjusting it is as simple as turning a knob. Predictive correction equipment is also made but only works reliably on talking heads. Richard P. is this an automated device, or one that must be adjusted by a human? i watched an event

Re: [CGUYS] Out of sync

2008-09-04 Thread Steve Rigby
On Sep 3, 2008, at 9:18 PM, Tony B wrote: It's not just you. It's a big problem today. I complain about it all the time, as do broadcast engineers. Not at all sure why all the new video formats separate audio from video. Experience with this has proven to me that the problem is much worse

Re: [CGUYS] Out of sync

2008-09-04 Thread Steve Rigby
On Sep 3, 2008, at 10:45 PM, Tom Piwowar wrote: Could be just your TV that is out. I have fixed this by turning the TV off on. Nope. Not at all in my case. In fact, one can experience time shifts in the amount of delay between audio and video as a program progresses. It may be more

Re: [CGUYS] Out of sync

2008-09-04 Thread Tom Piwowar
Nope. Not at all in my case. In fact, one can experience time shifts in the amount of delay between audio and video as a program progresses. It may be more or less out of sync at varying points in the program. That is true, but that does not address my question. Changing channels or

Re: [CGUYS] Out of sync

2008-09-04 Thread Richard P.
In the broadcast world, audio/video sync can vary depending upon how much digital video action is taking place. The more movement in the video (action scenes), the longer it takes to process, compared to the audio stream. The sync difference is measurable in a piece as short as one minute long.

Re: [CGUYS] Out of sync

2008-09-04 Thread Constance Warner
It's not surprising that quality control issues are showing up now, and that all the bugs haven't been worked out yet. But the conversion to digital wasn't really in the interest of consumers. Switching to digital frees up the very valuable frequencies that analog TV now uses. Compared to the

Re: [CGUYS] Out of sync

2008-09-04 Thread Steve Rigby
On Sep 4, 2008, at 9:16 AM, Tom Piwowar wrote: That is true, but that does not address my question. Changing channels or restarting the set can often bring things back into sync. Remember that the least expensive box in the chain is the one you own. Your suggested solutions have never

Re: [CGUYS] Out of sync

2008-09-04 Thread Steve Rigby
On Sep 4, 2008, at 10:04 AM, Richard P. wrote: The problem can be caused/corrected by equipment, source material, editors, and uplink/downlink operators. A transmission can have more than a dozen hops in it, with each hop introducing its own set of errors. However, there is no guaranteed

Re: [CGUYS] Out of sync

2008-09-04 Thread MrMike6by9
One of the ways the audio and the video can get out of sync is because the video is fed directly to the screen while the audio is routed through a home theater receiver (or the equivalent), for example. Better HTR's may have audio delay circuitry the user can invoke to try re-sync the two. I have

Re: [CGUYS] Out of sync

2008-09-04 Thread Richard P.
I would bet that viewership will drop off after the transition due to the fact that many houses that are able to receive usable VHF analog transmissions right now will no longer be able to receive a reliable UHF digital signal. Richard P. The problem can be caused/corrected by equipment,

Re: [CGUYS] Out of sync

2008-09-04 Thread Tony B
We believe you! But be aware that reports are surfacing in the wild that with different TVs, everything else being the same, one will show bad audio sync and one won't. Presumably this is the result of a bad component (or firm/software), and not an inherent design flaw with that entire model

Re: [CGUYS] Out of sync

2008-09-04 Thread Steve Rigby
On Sep 4, 2008, at 2:48 PM, Tony B wrote: Anyway, as someone else already pointed out I think, you need to power cycle everything in your chain, not just the TV. Even if it likely won't do any good. Perhaps so, but such maneuvers should not be required in our enlightened times and with

Re: [CGUYS] Out of sync

2008-09-04 Thread Steve Rigby
On Sep 4, 2008, at 2:26 PM, Richard P. wrote: I would bet that viewership will drop off after the transition due to the fact that many houses that are able to receive usable VHF analog transmissions right now will no longer be able to receive a reliable UHF digital signal. As for my

Re: [CGUYS] Out of sync

2008-09-04 Thread Richard P.
FYI, there's a simple piece of commercial equipment in use today to adjust for lip sync errors. All it requires is someone to input the signal into it, adjust it, and then monitor the output. Master control at the final broadcast point could do this if directed to. That would take care the simple

Re: [CGUYS] Out of sync

2008-09-04 Thread Steve Rigby
On Sep 4, 2008, at 5:12 PM, Richard P. wrote: FYI, there's a simple piece of commercial equipment in use today to adjust for lip sync errors. All it requires is someone to input the signal into it, adjust it, and then monitor the output. Master control at the final broadcast point could do this

Re: [CGUYS] Out of sync

2008-09-04 Thread Richard P.
Yes, and it can be had for less than $8,000. Peanuts in the broadcast budget. See product notes below signature. Most stations already have this but use it for other things. Richard P. Leitch Technology has introduced the X75 HD, a versatile up-, down- and cross converter and HD frame

Re: [CGUYS] Out of sync

2008-09-04 Thread Tom Piwowar
Switching to digital frees up the very valuable frequencies that analog TV now uses. They needed the money to finance foreign wars. I wonder if there will be any money leftover. * ** List info, subscription management,

[CGUYS] Out of sync

2008-09-03 Thread Steve Rigby
Is it just me, or are just about all digital TV broadcasts exhibiting poor sync between their audio and their video? Parallel analog broadcasts do not exhibit this problem for the most part. We are all being forced to switch to digital reception which includes spending money. Do we

Re: [CGUYS] Out of sync

2008-09-03 Thread Tony B
It's not just you. It's a big problem today. I complain about it all the time, as do broadcast engineers. Not at all sure why all the new video formats separate audio from video. On Wed, Sep 3, 2008 at 8:58 PM, Steve Rigby [EMAIL PROTECTED] wrote: Is it just me, or are just about all digital TV

Re: [CGUYS] Out of sync

2008-09-03 Thread Richard P.
From what I've seen, it exists just about everywhere, due to the fact that no matter what the broadcast medium, somewhere along the way it has gone through some sort of digital processing. This evening's network news broadcast's had major lip synch problem in several of their packages and live

Re: [CGUYS] Out of sync

2008-09-03 Thread Tom Piwowar
Is it just me, or are just about all digital TV broadcasts exhibiting poor sync between their audio and their video? Could be just your TV that is out. I have fixed this by turning the TV off on. * ** List info,