I often had out of sync problems with some commercial dvd , the sound had a little delay with the picture and sometimes on the same dvd one part is o.k. and another part is out. What can I do to resolve this ?
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When viewing on Digital TV:- Sometimes Audio and Video signal can not be transmitted simultaneously due to additional process time for the video signal compared to that of the audio signal. Often video signal takes more time than the audio signal to convert from analogue signal to digital signal in the Digital TV. It may result in mismatch of the picture and sound. In the TH-G30/40's HD AV Sync menu, you can adjust the audio signal delay for simultaneous AV signal transmission
1. Delay time can be varied in 10msec steps.(0 to 300ms) 2. Delay time is different between TV Brands.
So you need to adjust the delay time for correct lip-sync. The adjustment is listed in the instruction book page12
Ha ha ha I see well I can confirm the television set can not delay the sound without it being none teresstial transmission .. in other words if the transmission is out of sync then his set will be and so Will 19 million others receiving the same channel so it would not be a set fault but a transmission one . And any delay from a DVD or video would be the fault of the DVD or video Not the TV ... it is Impossible that'swhy I said In 23 years never heard of it .lol Regards Vortash . I know lakenheath you mean the American base yeah ..
Are the movies you're watching store purchased DVDs? Sometimes with downloaded movies, the audio and video are just out of sync.
If they're store bought, it's possible that you've got a delay set in your receiver. Consult your receiver's operating manual to see if there's a "delay" option.
It's also possible that you're hearing that delay in the TV speakers.
If you've got the audio coming through the receiver AND the tv, you'll hear a slight delay when the audio's traveling from the DVD player to the television itself. This could happen "sometimes", if the tv volume is on, and not happen when the tv volume is off.
This may be the broadcast, or the service provider's equipment. We have seen this before. Most people are not too sensitive to lip-sync problems unless they are very severe. With digital TV distributions and the many conversions and signal processes along the way it is possible to have many types of delay problems. On my own TV set which is on a digital cable service I see this on a number of stations.
Up front, i copied this from another site, so kudos to the OP there if this works for anyone...
This same problem had been bugging me when I bought my LE37B650,
everyone suggested adjusting the delay time on my AV amp but
unfortunately mine does not have this function.
Anyway I finally fixed the problem using the following steps
Before you start make a note of your menu settings as you will have to reset them after this procedure
Turn off the TV then press Info -> Menu -> Mute in sequence then
turn the TV back on again. This will get you into the secret Service
Menu. Go straight to the AUDIO page of the menu. Don't be tempted to fiddle with things in service menu cos you can end up in a right old pickle!
In the AUDIO page you willl notice that there is a time delay set for
the internal speakers of 100ms but for some reason this is not set for
the external output so all you need do is dial in a 100ms delay there
and that should sort the problem. Well it fixed it for me.
Note that as soon as you enter the service menu, all your other
standard menu settings are lost and the screen will be set to dynamic
for some reason so you have to go through and change everything back
after you have done this.
Hope this Helps
Original link: http://www.hometheaterforum.com/forum/thread/280579/audio-delay-on-samsung-650-lcd-tv
This would suggest that you CAN fix the problem with an analog amp.
Also interested to see if a 2 year old thread is alive!
I received an e-mail from Samsung which reads
"What you have described in your e-mail was an issue that was logged and has been investigated we have released a firmware update to resolve the issue"
"In order for the firmware to be updated on the unit please call our product support team on 0870 726 7864 for assistance"
Lip-sync error is a widespread problem caused when video is delayed and audio arrives too soon. Widespread enough that three different manufacturers make dedicated products to address it, in fact (see review link below for those three).
It is present to some extent in essentially all broadcasts and DVD?s. If you have a recently acquired DLP, LCD or plasma display it may have added enough additional video delay to make it noticeable but lip-sync error comes from MANY sources starting at image capture and continuing through post production and broadcast or DVD encoding and it is cumulative. There is usually enough lip-sync error in broadcasts and DVD's to cause a negative impact on viewer perception (Research done at Stanford showed this.)
Many people don't consciously notice it until it gets very large because it's such an unnatural phenomenon ( audio can't come before the action causing the sound in the real world) we apparently subconsciously avoid looking at the faces and seeing the lips move "after" the sound from them is heard. A study at Stanford proved this causes negative viewer perception even for those who don't notice it so this is something we all need to notice as you already have.
For those reading this who haven't noticed it, take a close look at the LIPS - force yourself to overcome your natural avoidance mechanism that keeps you from looking at the lips - and you will see lip-sync error you never noticed before. I think you will be amazed that you could possibly not have noticed it before. You will be seeing what JC is seeing. I even see it now on CRT TV's
and am amazed I never noticed it so it's very obvious some avoidance mechanism is at work.
And back to JC?s solution: I'd recommend one of these digital audio delay units. That way you can correct for ALL cumulative lip-sync error no matter what its source might be. Any one of these units reviewed will correct it ALL.
With any one of these units you can adjust for perfect lip-sync at the start of each DVD or broadcast and not disturb the image you are watching during that fine adjustment. I have had a Felston DD340 since 2004 (three generations earlier than the DD740 covered in the review) but it still has the most important feature of all these units from these three different manufacturers which is their "plus and minus" buttons on their remotes that allow you to tweak the delay while watching your material without upsetting the video your are watching.
My av receiver has a built in delay of 80 ms which isn't even enough audio delay to offset the video delay my plasma display adds but even if it were it isn't practical to adjust it for the changes in lip-sync error from program to program and DVD to DVD since it overlays the screen with menus when making the delay adjustment. With my DD340 (and any of the units reviewed) all you have to do is press the plus or minus button until you get perfect sync.
Here is the review I mentioned: