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Pixelation |
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#1 |
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Forum Member
Join Date: Dec 2006
Posts: 123
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Pixelation
I have a Sony DVD recorder with built-in Freeview tuner. My question is, what is the cause of the pixelation I get when either watching terrestrial channels through the Freeview box, or of a recording I have made of a TV programme. No problems with pre-recorded DVD's or while watching through analogue. I have had a new arial fitted with a booster prior to buying the recorder.
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#2 |
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Forum Member
Join Date: Oct 2005
Posts: 1,106
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Quote:
Originally Posted by aok
I have a Sony DVD recorder with built-in Freeview tuner. My question is, what is the cause of the pixelation I get when either watching terrestrial channels through the Freeview box, or of a recording I have made of a TV programme. No problems with pre-recorded DVD's or while watching through analogue. I have had a new arial fitted with a booster prior to buying the recorder.
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#3 |
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Forum Member
Join Date: Dec 2006
Posts: 123
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Thanks for replying, but to be honest I don't understand what you are saying. Most of the time my picture is fine, but every once in a while I get pixelation, which sometimes will also distort the sound. This only lasts for a few seconds but can spoil the viewing. On average it probably occurs about once every 2 hours of viewing....not a lot I know but still infuriating. I didn't know if it was down to the reception or a fault with the freeviewer combined in my DVD recorder
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#4 |
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Forum Member
Join Date: Jan 2002
Location: Ilkeston
Posts: 18,075
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So you are not talking about an inherent issue with the overall picture quality of the Freeview channels but a sporadic breakup of the signal which can cause video and audio corruption?
If that is the case then it's probably some external interference which some receivers are better than others in handling. It may be in electrical system, boilers switching on for example or radio interence (dect phones, car alarms etc). |
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#5 |
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Forum Member
Join Date: Dec 2006
Posts: 123
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Yes, you have it, it is very sporadic. It doesn't seem associated with any other appliance switching or or off, do you think a better arial might improve it?
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#6 |
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Forum Member
Join Date: Jan 2002
Location: Ilkeston
Posts: 18,075
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Perhaps a question for the Freeview/Terrestrial forum
![]() I took the easy route, had a brand new aerial installed and have pretty much perfect reception and no intereference on both my Freeview boxes, never really needed to delve deeper into the causes of picture problems. It may be that the tuner in the DVD/Freeview box is a little more susceptible to interference than other tuners, early freeview and ondigital boxes could be affected by passing cars or fridge motors ![]() Borrowing a friends Freeview box for the night could be worth while if only to test the quality of your signal on a new tuner. |
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#7 |
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Forum Member
Join Date: Oct 2005
Posts: 1,106
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Quote:
Originally Posted by aok
Thanks for replying, but to be honest I don't understand what you are saying. Most of the time my picture is fine, but every once in a while I get pixelation, which sometimes will also distort the sound. This only lasts for a few seconds but can spoil the viewing. On average it probably occurs about once every 2 hours of viewing....not a lot I know but still infuriating. I didn't know if it was down to the reception or a fault with the freeviewer combined in my DVD recorder
Surpriseingly DVB recievers can get too strong a signal, which can cuase problems like you now describing. Fitters often have to fit attenuators if you live too close to DVB transmitters. You should only amplify a DVB signal if a fitter recommends it. |
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