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S-Video problem

poutipouticat posted 2008 Aug 17 02:36
Hello, I am currently recording directly from my Nintendo 64 to my DVD recorder but I'm having some issues. I'm trying to get better quality by using a s-video cable.

Composite :

http://files.filefront.com/compositemp4/;11228531;/fileinfo.html

S-Video :

http://files.filefront.com/svideomp4/;11228619;/fileinfo.html

If you watch these videos in full screen, you'll notice that the second one (svideo.mp4) is far more pixelated. Apparently, this kind of artifacting is known as "dot crawling", and can be solved by using component or s-video instead of composite. The thing is... the problem only occurs when I'm using a s-video cable, everything is fine with composite. I'd like to know what I can do to solve this problem. And no, the s-video cable and video game system aren't defective, the problem is coming from my DVD recorder. Thanks in advance



jagabo posted 2008 Aug 17 08:31
Your DVD recorder isn't using a 3D comb filter on the s-video input, only on the composite input. Which makes sense since the s-video input shouldn't need it. But some devices create their s-video output from composite with a simple luma/chroma splitter that gives this type of dot crawl artifacts.

It's possible to remove dot crawl artifacts with software filters. VirtualDub's "DotCrawl Comb Filter", for example. You need to use the filter before resizing the frame.



DeXeSs posted 2008 Aug 30 18:04
Holy! That blows my mind and fills me with rage.

S-Video is WORSE on the N64? Makes me feel dumb for picking up a couple Monster S-Video Cables for Nintendo system (I haven't hooked them up yet). However, they were only $9.99 a piece :-/



jagabo posted 2008 Aug 30 18:45
I'm only going on what the OP said and the samples he posted. I don't now for a fact that the N64 converts composite to s-video with a cheap splitter. You should verify for yourself.


DeXeSs posted 2008 Aug 30 22:00
Holy beans I just watched those vids. The S-Vid looks like rear! This is a catastrophe. My confidence is compromised.

Must research...



DeXeSs posted 2008 Aug 30 23:03
Same Problem here:
http://www.atariage.com/forums/index.php?showtopic=123551
and
http://www.gamespot.com/pages/forums/show_msgs.php?topic_id=25948649

Evidence to the Contrary Here:
http://www.digitpress.com/forum/archive/index.php/t-91740.html
and
http://www.n-europe.com/forum/showpost.php?p=247063&postcount=8

I guess based on very few facts is this only affects US N64 which sucks because I'm in North America. Heh

Um...All opinions exist here:
http://assemblergames.com/forums/archive/index.php/t-12169.html

I'll just have to try it I guess.

THIS SUCKS!



edDV posted 2008 Aug 30 23:14
This needs to be confirmed on another Nintendo 64. Jagabo is probably right. Best way to know is to test.
http://en.wikipedia.org/wiki/Nintendo_64#Video

Keep in mind that at that time (~1996) it was common for native composite Laserdisc players to construct S-Video from composite and the results were worse than composite tied to a premium comb filter (e.g. Sony XBR). Ideally, S-Video would be constructed from an RGB -> YUV -> Y/C transcode.



DeXeSs posted 2008 Aug 30 23:44
Thanks edDV. As soon as I'm back in Ontario, I'm head to my local Princess Auto to pick up a set of Monster Nintendo Composite Cables.

More RAGE!
http://techforums.nintendo.com/nins/board/message?board.id=other_ ... ad.id=1151
and
http://www.amazon.com/review/product/B00005S8C8/ref=cm_cr_pr_hist ... addOneStar

Potential that it has to do with the cable?:
http://www.digitpress.com/forum/showthread.php?p=1416819

Now, I'm really impatient to get back to try this :shock:



edDV posted 2008 Aug 30 23:46
DeXeSs :
Thanks edDV. As soon as I'm back in Ontario, I'm head to my local Princess Auto to pick up a set of Monster Nintendo Composite Cables.

More RAGE!
http://techforums.nintendo.com/nins/board/message?board.id=other_ ... ad.id=1151
and
http://www.amazon.com/review/product/B00005S8C8/ref=cm_cr_pr_hist ... addOneStar

Potential that it has to do with the cable?:
http://www.digitpress.com/forum/showthread.php?p=1416819

Now, I'm really impatient to get back to try this :shock:


Use cheap cables for test. Monster cables won't help. The critical components are your HDTV comb filter and upscaler.



vhelp posted 2008 Aug 30 23:57
I have the same problem with my old Nintendo -- dot crawl hell. I gave up on trying. Some things just weren't ment to be captured. These games were low resolutions to begin with. And, interlace makes it really bad.. it was in my experience. I was testing my Mario game back then.

-vhelp 4871



DeXeSs posted 2008 Aug 30 23:58
More speak of the cable being the factor!
http://www.hdtvarcade.com/hdtvforum/index.php?showtopic=4048& ... mp;start=0



edDV posted 2008 Aug 31 00:21
Comb filter is more likely for dot crawl, then deinterlacer, then scaler.
http://members.aol.com/ajaynejr/vidcomb.htm



jagabo posted 2008 Sep 01 09:07
Play N64 games on your computer with an emulator like Project64. Much better graphics.




DeXeSs posted 2008 Sep 01 11:19
I hope I don't get nailed for saying this but the shuttle PC I have hooked up to my folks 42" Aquos has every single cartridge ROM (except N64) installed onto it. (Connected with DVI) The quality is perfect.

I have an adapter that allows me to use a Playstation 2 Controller connected to USB wtih basicly 0 response time or at least it's unnoticeable.

It's the sweetest thing ever. I guess I could get the GoodN64 pack but I'd like to use the N64 controller. There must be some N64 to USB adapters though so maybe that is worth investing in.

Here's a puzzler:
NES Resolution 320 x 240i - Composite
SNES Resolution 320 x 240i - S-Video
N64 Resolution 320 x 240p - S-Video

Correct?



jagabo posted 2008 Sep 01 11:37
Many years ago I bought a USB adapter that lets me hook an N64 or PS2 controller to the computer.

Any video signal that goes through a composite or s-video cable is interlaced. Both fields can be from the same frame though. So a game can generate 320x240 60 fields per second, or 320x240 30 frames per second. In the first case you will see 60 different pictures every second, in the second you will see only 30 different pictures per second (you see each frame twice).



DeXeSs posted 2008 Sep 01 12:54
Right I should have been more explicit with what I was trying to convey.

I understand about interlaced/progressive.

I'm just interested in knowing what is the source on the cartridge. I guess cartidge is all progressive but the system is only capable of outputting interlaced whether by composite only or s-video.

I mean the NES had the RCA standard on the side. Why didn't every system just adopt that damnit.



DeXeSs posted 2008 Sep 01 12:56
What the hell!?

http://cgi.ebay.com/Official-Adaptoid-N64-to-USB-adaptor_W0QQitem ... dZViewItem



jagabo posted 2008 Sep 01 13:09
Here's the one I have:

http://cgi.ebay.com/USB-adapter-for-N64-controller-Nintendo-64-to ... dZViewItem



Bix posted 2008 Sep 01 13:29
DeXeSs :
What the hell!?

http://cgi.ebay.com/Official-Adaptoid-N64-to-USB-adaptor_W0QQitem ... dZViewItem

They're no longer made.



DeXeSs posted 2008 Sep 01 13:44
Jag, does your device work very well?

Response time is good?



jagabo posted 2008 Sep 01 16:49
It's been quite a while since I used it but I don't remember any lag.


DeXeSs posted 2008 Sep 01 19:03
Sweet. I'll pick one up. Thanks.


DeXeSs posted 2008 Sep 02 07:14
SPAM!

There is nothing on that website about Nintendo 64. I will never buy from your crap site.

EDIT: Some doofus was advertising in the post inbetween my above post and this one but now it is gone.



Jeroen1000 posted 2009 Apr 06 08:57
Sorry for kicking this one up but...
I've got the netting/pixelation/masking/dot crawl issue using S-video also. Using composite the image is just blurry but without pixelation.

According to my VP the N64 was outputting 720 x 288 :?. As far as I know the N64 normally does not do that res...
Are there any confirmed cables to work? They sell one on store.nintendo.com for $15,00




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