CMVS Component vs S-video

Finch said:

Does anyone have comparison shots for a CMVS?

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For Component vs. S-Video? Shoot, I just shipped a CMVS out yesterday so I only S-video right now.

I had an old thread about composite vs s-video vs component vs RGB using a Sony PGM-200R1U with the scan converter (BKM201SC) added. Keep in mind that there are NO pots added to any of the lines. You can judge for yourself.

http://www.neo-geo.com/forums/showthread.php?t=132195

I actually find the component to look over saturated and not as sharp in your shots compared to S-video and RGB, the latter of course being the best.

thanks for the shots!

300wins said:

I had an old thread about composite vs s-video vs component vs RGB using a Sony PGM-200R1U with the scan converter (BKM201SC) added. Keep in mind that there are NO pots added to any of the lines. You can judge for yourself.

http://www.neo-geo.com/forums/showthread.php?t=132195

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For the sake of conversation I took two pictures of my MVS. One is RGB, and the other is Component (converted using a FC-14). Can any of you correctly guess which one is which?

#2 is RGB, thats my guess.

Can you get a shot of S-video too? That's what I really need to see in comparison.

Also, what screen is this on?

Finch said:

#2 is RGB, thats my guess.

Can you get a shot of S-video too? That's what I really need to see in comparison.

Also, what screen is this on?

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I'll hold off from saying which is which so that the result isn't spoiled...

The screen is a KDL-55XBR8 using a XRGB-3 in B0 mode @ 1920x1080. The camera is a PoS DSi... The component conversion is being decoded with an Extron CVC200 before being fed into the XRGB-3 (to eliminate any variations as to the XRGB-3's ability to decode). I tried using my PVM-2030, and while the setup works just fine as well, the DSi takes better pictures of the XBR8.

For S-Video, I can use a XAV-2s, or my AD725 Eval Board, or both?

#1 is RGB. It has more detail. Close though.

could you just hook it straight up to the TV, either the KDL or PVM? I don't have any fancy upscan converters nor do I intend to buy any, as cool as they may be.

Just trying to get the difference between component and S-video, going straight into the TV, with nothing fancy in there.

RGB32e said:

I'll hold off from saying which is which so that the result isn't spoiled...

The screen is a KDL-55XBR8 using a XRGB-3 in B0 mode @ 1920x1080. The camera is a PoS DSi... The component conversion is being decoded with an Extron CVC200 before being fed into the XRGB-3 (to eliminate any variations as to the XRGB-3's ability to decode). I tried using my PVM-2030, and while the setup works just fine as well, the DSi takes better pictures of the XBR8.

For S-Video, I can use a XAV-2s, or my AD725 Eval Board, or both?

Click to expand...

Finch said:

could you just hook it straight up to the TV, either the KDL or PVM? I don't have any fancy upscan converters nor do I intend to buy any, as cool as they may be.

Just trying to get the difference between component and S-video, going straight into the TV, with nothing fancy in there.

Click to expand...

I didn't intend for the XBR8/XRGB3 combo to be misleading. It's the best setup I have for performing a comparison that removes as many variables as possible. I will post pictures of S-Video tomorrow. Without a real camera, the pictures taken on the PVM are worthless for comparison, and is what I started out with for this task.

Finally, the first picture is RGB and the second is component. Looks like Xian Xi is the winner!

The point I'm trying to make is that when RGB (from the MVS or any other console/source) is properly transcoded and decoded on a TV, the difference in picture quality between the two should be nearly indistinguishable. The difference between RGB and S-Video is fairly dramatic, since when the two chroma signals of component video get combined to make C (U+V==C) too much color information is lost in the process. Not to say that S-Video looks horrible on the right display, or generated inside a console with syncronus subcarrier (unlike external encoders).

From the experiences people have had using the NB and JR RGB to Component converters, it looks like they do a really poor job of converting RGB to component. It looks like people would get much better component output from a MVS by using CSY-2100 or CVS287 with 150 ohm resistors on the red, green, and blue video lines. The PCBs of the CSY-2100 or CVS287 are small enough that they can be used for consolization if S-Video/Composite isn't needed. Pots are something I personally avoid if possible. They wear out over time and can add noise to video signals. When consolizing an MVS, fixed resistors of the correct value are all that is needed to get proper video output levels. Just my $0.02...

I can finally post now..... please delete

RGB32e said:

From the experiences people have had using the NB and JR RGB to Component converters, it looks like they do a really poor job of converting RGB to component. It looks like people would get much better component output from a MVS by using CSY-2100 or CVS287 with 150 ohm resistors on the red, green, and blue video lines. The PCBs of the CSY-2100 or CVS287 are small enough that they can be used for consolization if S-Video/Composite isn't needed. Pots are something I personally avoid if possible. They wear out over time and can add noise to video signals. When consolizing an MVS, fixed resistors of the correct value are all that is needed to get proper video output levels. Just my $0.02...

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I would also like to recommend the CSY-2100, I use it with a variety of old computers and consoles and it works brilliantly. Very good picture quality.

Disappointing it doesn't have sound outputs though.

I had posted this a while back as well, however this is an AES using a SCART -> HDMI convertor comparing RGB to Composite. Maybe I can take some pictures of my CMVS tomorrow night for you.



RGB


COMPOSITE

My CMVS is S-video, and I've wondered about adding component, but after reading this thread, I'm thinking it wouldn't be worth the effort to have someone mod it?

NotoriousReignz said:

My CMVS is S-video, and I've wondered about adding component, but after reading this thread, I'm thinking it wouldn't be worth the effort to have someone mod it?

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I would say not, the display is still clean with s-video, so keep it.

What a difference.

Since I originally made this post I acquired a Sony-PVM and ordered SCART cables for my genesis and one for AES to use on my new CMVS. I'm skipping component on the CMVS to go with a Neobitz-S for Composite and S-video while also wiring up an AES style Din-8 that's hooked up to raw RGB straight off the board for use with SCART on the PVM.

S-video looks pretty good on my current CMVS except for being a bit bright, so I'm ok with it for hooking it up to my main TV. I figure if I want to get really fancy I'll grab a SCART->component/HDMI.

Speaking of which, what SCART-> HMDI box do you use?

Zerrminator said:

I had posted this a while back as well, however this is an AES using a SCART -> HDMI convertor comparing RGB to Composite. Maybe I can take some pictures of my CMVS tomorrow night for you.

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Wtf??

Theres a massive difference between S-Video and Component. Anyone who says otherwise obviously has a shit TV.

Think of it this way: S-Video is basically compressing 3 colour signals into one. Component isn't doing any compression of colour information.

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I don't have s-video on my Neo, but I have compared s-video to component on my PS2- the component is way better than s-video. S-video compresses 3 signals into 2.
Component does compress the color information- it removes some of the R, G, B color ranges. (in other words, you don't get the full range of Red, Green and Blue colors that RGB has). In theory it's only supposed to be the part of the ranges that the human eye can't detect.

For the sake of conversation I took two pictures of my MVS. One is RGB, and the other is Component (converted using a FC-14). Can any of you correctly guess which one is which?

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I was guessing the first one was RGB (the top one of the two photos). The colors look slightly better (the component colors looks a little more washed out). But some people on here claim that RGB is way better than component (?).

I have component running on my ps2 also, and yes, it is alot better then running s-video.

I also have a Neo Aes modded with component and s-video and honestly, the difference is nothing major. S-video really does get the job done. I'm not going to go as far as saying that S-Video looks better then the component, but the difference is minor.