I bought a new samsung Smart TV and have noticed that some times the sound from speech is delayed.

For example when watching a movie, you can see the person's lips moving but the speech is a second or two slow.

Does anyone know how to fix this problem?

If you are watching, for example, an evening of Virgin TV does the delay affect every single programme you watch or is it OK on some programmes and delayed on others?

Similarly if you were watching several DVDs one after the other are they all delayed or only the occasional one?

If either the Virgin box or DVD player had an audio delay facility then that would affect everything you watch on those devices. Similarly if the TV had one that would affect everything as well. However if it only does it sometimes then, barring you turning this delay on and off your self, the delay is likely to be elsewhere.

Not impossible for devices to have an audio delay system. Often called Lip Synch (for obvious reasons ). But normally it is a few 10s of mS (1/1000 second). Usually it's used with external audio systems, eg a surround system, soundbar or stereo system. This is because a TV can take slightly longer to process the images than the external sound system takes to process the sound. So normally the sound leads the pictures. By introducing a short delay in the audio you get it back in synch with the picture.

But as I say that is normally a fraction of a second. Very odd for it to be even as much as a second.

I had this the other evening with my Sky HD+ box on my new LG Plasma. I unplugged the Sky box and when it rebooted, all was ok.

Cheers Chris, I'll have a good look through the options on each device.
Appreciate the detailed reply.

What happens if you change channel and go back again?
Is a lot "worse" on some channels?
What happens if you turn on and change channel - versus turn on an watch the channel it was previously tuned to?

Never tried that but will do when it happens again, including a reboot if needed.

Thanks for the idea

Is this happening solely through the TV or when you are listening via your sound bar?

Sometimes it happens just over the TV, but this is normally a broadcasting issue. It is more an issue when feeding audio to an external sound system. Most current devices theses days have an audio delay feature for when such events like this happen. Check your TV/sound bar instructions to see if one is present.

Whatever you do be systematic about it.

First of all try to identify if there is any pattern to the problem. So don't touch anything at first. Just listen and watch for an evening. Try to see (hear? ) if the delay is affecting everything you watch or just occasional programmes. Also try to identify if it only affects Virgin, or DVD or the TV's built in tuner or everything.

Then try to see if it affects listening only via the soundbar or the TV's built in speakers or both.

The idea is to try and narrow down which device is causing the delay if possible. Then you can try and identify the actual reason for the delay. If you dive in blindly clicking randomly at menu settings on all and sundry then you might stumble across the solution by accident, make it worse or fluke a bodge that works for now but may fall apart some time in the future.

On my YouView box, there is an adjustable setting to ensure that it's in synch.

On my Samsung Smart TV it's called Audio Delay and it's in the Sound menu in Additional Settings, SPDIF Output sub-menu.

I agree with chrisjr about being systematic and although I don't get any delay with DVD/Blu-ray, I have twice had a delay with the BBC News on HD Freeview when they played a VT interview recorded in SD. I had it once with a pre-race interview on F1 as well. Each time I flicked to another channel and back and that cured it.

If you are seeing this on freeview using the TV's own speakers and you haven't done anything to cause the problem, take it back. That's what warranties are for.