Voice out of sync with picture

I have intermittent problems with the sound being out of sync with the picture on one or more channel. This happens occasionally (once or twice a month) and will affect two or three channels at the same time but not all channels. The sound can be anything from a second or two to 30 seconds before or after the picture. This affects both tuners I have (Panasonic hard disk recorder or Samsung TV). I have tried turning off either or both devices right back to turning power off at the wall) and this does not make any difference. This will last for some hours but will eventually resolve itself.

Any ideas on what causes this or how I can avoid it?

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Permalink Reply by BJ Pike on August 12, 2013 at 8:57

Just using regular TVs with no ability to do firmware updates.

For terrestrial we use Kaukau.

I am not using Samsung TV. There are no options for audio.

nzdtv.com said:

are you using audio via HDMI cable

are you using an amp or processor or the internal speakers?

have you checked for firmware updates for your tv?

which broadcast site are you getting your terrestrial signal from?

you mention a samsung tv, are you using spdif for audio? there are many options.

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Permalink Reply by BJ Pike on August 12, 2013 at 8:58

Mike G said:

Thanks for the info BJ. Is it worse on some channels than others or are they all wrong? My Panasonic tv looks ok, but maybe I just haven't noticed.

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Permalink Reply by BJ Pike on August 12, 2013 at 9:00

BJ Pike said:

All channels show some out of synch. Some more than others, but not consistently any in particular.

Mike G said:

Thanks for the info BJ. Is it worse on some channels than others or are they all wrong? My Panasonic tv looks ok, but maybe I just haven't noticed.

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Permalink Reply by nzdtv.com on August 12, 2013 at 9:29

What brand and model number is the TV.

and pretty much all tv's with usb ports on them have the ability to do a firmware update.

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Permalink Reply by BJ Pike on August 12, 2013 at 9:37

Older Sharp, Phillips, Sony. None have USB or anything as fancy as that.

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Permalink Reply by nzdtv.com on August 12, 2013 at 10:49

Which settop box are you using?

brand and model number

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Permalink Reply by BJ Pike on August 12, 2013 at 11:14

TEAC - model unsure, on terrestrial. A couple of other brands on satellite.

Does it matter? I have never seen a Freeview set-up that doesn't have out of synch problems.

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Permalink Reply by nzdtv.com on August 12, 2013 at 11:52

yes it does matter if you are using 3rd party equipment in particular satellite equipment can often have issues with lipsync.

can't say I've ever had the problem on Freeview.

you would get more help with it if you listed specific models/ brands of equipment? Are you using Freeview approved gear?

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Permalink Reply by BJ Pike on August 15, 2013 at 13:47

I found the model number for the terrrestrial set top box: TEAC HC-B6T - will that fix the issue?

nzdtv.com said:

yes it does matter if you are using 3rd party equipment in particular satellite equipment can often have issues with lipsync.

can't say I've ever had the problem on Freeview.

you would get more help with it if you listed specific models/ brands of equipment? Are you using Freeview approved gear?