View Full Version : Converting Composite to RGB
31-05-2004, 12:28 PM
I wonder if someone could give me a bit of advice on where to purchase a composite to RGB converter. I've got a Sky minibox which does not have an RGB enable scart.
I've seen loads of adverts for RGB to Component, or RGB to S-video etc...but none that convert composite to RGB.
Any help would be appreciated.
31-05-2004, 06:06 PM
Why would you want this converter? AFAIK all screens that can receive RGB can also receive a composite signal.
If you do find a converter it will not improve the composite signal, only convert the signal with the same quality.
31-05-2004, 06:32 PM
There are boxes that do this, I have one but why? Every receiver / plasma / projector on the planet has composite inputs already, just use them, you will gain nothing by converting it.
01-06-2004, 10:33 AM
I thought that I would be able to convert the composite signal to RGB prior to sending it to my TV. Isn't this possible then? Although my television does have a composite connection, I would prefer to set the scart to RGB as this provides a much better picture (I used it use the same TV downstairs on a digibox that was RGB enabled).
Is there nothing that can take the composite signal and convert it to an RGB signal prior to sending it to the TV?
01-06-2004, 11:35 AM
As the signal is composite out of the source I doubt you'll get any better picture with the converter.
If you bought a scaler or videoprocessor you would get a better picture, but then we are talking about alot more money.
01-06-2004, 07:01 PM
The composite output on any video device is a very low bandwidth connection. If you convert the composite to RGB the signal going into the converter is still low bandwidth and therefore low quality signal. The RGB converter can not add additional quality that is not being fed into it from the composite source, therefore you would be spending a lot of money on a converter that would give no improvement in the picture quality. If anything the conversion would cause a further loss of quality.
01-06-2004, 07:35 PM
A good comb filter, which would convert Composite into S-Video can be of some use, but I would hope that the composite input on modern TVs use them anyway.
02-06-2004, 08:38 AM
thanks for your guidance everyone...much appreciated.
Serves me right for being out when the sky installer came!
06-06-2004, 10:42 PM
I have had some beers but I think there may be confusion here......
Display devices work by RGB. This means that any source device signals are being converted to RGB. You ask about converting Composite to RGB. That is what all display devices do already, which is probably why you have had the replies you have.
Digital broadcasts are YUV so they are inherently component. Sky boxes etc can output RGB signals themselves. Using RGB in to your display or video processor will probably give you best signal as you are not having to go down to composite and then back up. Composite is lowest of low. Using RGB to s-video or RGBto Component or RGB to VGA adaptors will give you best image you can from this source.
25-06-2004, 06:59 AM
Bit late to this one but are you SURE your sky box doens't output RGB?
It would be first I've ever seen if this is the case. Give us the model number and we can check. You also have to select in in the setup menu, if that's any help.
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