Super Famicom AV2HDMI problem

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theclaw
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Re: Super Famicom AV2HDMI problem

Post by theclaw »

From what I've heard, one cause for artifacts is trying to process 240p as 480i.

There are tons of other converters. I can't speak from experience about them though.
http://retrogaming.hazard-city.de/

In general where the budget allows, start from RGB SCART or similar quality on capable consoles.
Ensures you're working with a good source image.
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Synnae
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Re: Super Famicom AV2HDMI problem

Post by Synnae »

Thank you. I'll see about this stuff eventually, but now I'm saving money to buy my Sky3DS and EZ Flash V :P

So... I'm using my old CRT TV with my SFC and I noticed that I don't see interlaced artifacts on it. But when I used LCD TV's, they were pretty visible.

Is the CRT hiding the interlaced artifacts because of the scanlines? I don't really know as I'm not expert on the subject...
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theclaw
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Re: Super Famicom AV2HDMI problem

Post by theclaw »

Historically, console games used some variant of 240p (with exceptions).
Then Dreamcast in one swoop changed everything for better or worse.

Mega Man 8 is among the easily obtainable games to compare side by side.
PS1 original was non-interlaced, then they interlaced the PS2 port.
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jeffro11
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Re: Super Famicom AV2HDMI problem

Post by jeffro11 »

Your CRT isn't "hiding" anything. Your screen is being drawn on by the guns in the back of the tube LINE by LINE. An interlaced image is half of the image being drawn at any given time on the ODD or EVEN rows. Due to the glow of the phosphorus in the pixel mask, you can't tell that only half the image is being display on every "refresh".

A progressive image (240p, 480p, 720p, 1080p) is the ENTIRE image being displayed at the exact same time of screen refresh. This takes a massive amount of bandwidth to do versus a interlaced image which would take essentially half the bandwidth to do (given that only half the image is shown at any given time).

Hopefully that explains what your CRT is doing a little better and why its such an amazing piece of technology.
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