Question:

How do I stop pixels from vibrating on my LCD television while playing an NES hooked up with composite cables?

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The pixels seem to vibrate during any game I play. I know it's not the NES, so it must be the TV. It's a Polaroid widescreen LCD television and I'm using composite cables (yellow/red for video/audio). Is there an easy way to fix this problem?

Note: When I turn the sharpness down, it seems to stop the vibrating, but then the picture is all blurry. If I can help it, I don't want to settle on a solution I'm not 100% satisfied with.

Thanks!

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4 ANSWERS


  1. Aliasing/noise  

    The data between the console and TV is a analog serial signal. Since your TV is now far superior than the console's output, the slight shifts in timing of the console output (I'm talking microseconds and smaller) due to errors of the console's driver or even noise/impedance of the line is bordering between pixels of the TV.

    Try S-video if possible. But you said NES and as I remember, they didn't have that.


  2. dude use s video for that

  3. What you are seeing isn't vibrating pixels. The pixels don't actually move they just transition between different colors and light levels. What you are seeing is called dot crawl. You are using composite video which carries the Chroma (color) together with the Luma ( Light and Dark). This has to be separated before being displayed. To do this a Comb Filter is used. The better the quality Comb Filter the less dot crawl. Polaroid, being a 3rd tier manufacturer of LCD I'm sure uses a low quality comb filter. Then the picture is probably being scaled to the native resolution of the TV further degrading the image errors you are seeing. If you are using the original NES you probably don't have any option but to use composite. If it is a Wii I think you can use S-Video or component which both bypass the comb filter because they carry the Chroma and Luma separately.

  4. If you have a S.video hook up on the NES and TV try that or even better check if there is componet red/blue/green.  You will still use your red and white cables for audio.  The componet will give you the best display berween these 2 types.  Hope you have one of these options to improve your visual experience.  forgive any spelling - glasses are at work...lol.

    Cheers

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