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MagerValp
Registered: Dec 2001 Posts: 1081 |
HDMI upscaling on a budget
I love my CRT to death, but sometimes a more compact option is needed. Does anyone know of an HDMI upscaler that doesn't cost $400, outputs 50 Hz without artifacts or dropping frames, and shows aspect correct 4:3 with black bars on a 16:9 display? The $30 converters on eBay are crap. Specifically, has anyone tried these KanexPro converters? http://www.kanexpro.com/converters/composite/ |
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Oswald
Registered: Apr 2002 Posts: 5109 |
yep |
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Mr. SID
Registered: Jan 2003 Posts: 425 |
I'd see if somebody who's into designing/manufacturing hardware could do a simpler solution. There's a lot of money in a cheap Framemeister clone.
The fact that there doesn't exist one yet, makes me think that it's actually not feasible... |
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chatGPZ
Registered: Dec 2001 Posts: 11443 |
thing is that it wont get much "simpler". and if you cant just take an off the shelf IC (which those $30 solutions do that work like crap) it wont get cheaper either :) |
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Deev
Registered: Feb 2002 Posts: 206 |
Quote: Framemeister is the thing that does it? 50HZ and all that? No flaws?
It gives by far the best picture I've seen from a C64 on a modern display, with smooth 50hz motion.
It can be *slightly* buggy on PAL sources. Once it's set up, you're fine, but every now and again I've found changing some of the options on a PAL source can lock up the unit.
I got one because I have a number of old consoles/computers that I wanted to hook up to my TV and I think it's been a good purchase. In particular, it handles 240P RGB extremely well. |
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Krill
Registered: Apr 2002 Posts: 3003 |
One would think that affordable ADC+FPGA/CPLD circuits for this purpose might be around the corner... |
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MagerValp
Registered: Dec 2001 Posts: 1081 |
Oh it's quite doable, and indeed the components are out there. It's above the level of most hobbyist engineers though (myself included), and commercially it's unlikely to be profitable, so... here we are. |
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chatGPZ
Registered: Dec 2001 Posts: 11443 |
krill: sure, and R&D usually comes for free :) |
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JackAsser
Registered: Jun 2002 Posts: 2036 |
Quote: Oh it's quite doable, and indeed the components are out there. It's above the level of most hobbyist engineers though (myself included), and commercially it's unlikely to be profitable, so... here we are.
LFT will rescue us, no worries. Right Linus? :D |
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Deev
Registered: Feb 2002 Posts: 206 |
There's the OSSC which is an open source alternative (https://github.com/marqs85/ossc), but at the minute, it doesn't have s-video input. So, perhaps all we need is a good s-video to RGB transcoder? :)
Pre-assembled units are still fairly costly, though anyone with the skills could build their own for the price of the components. |
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MagerValp
Registered: Dec 2001 Posts: 1081 |
Since the OSSC does everything right and is open source, it'd be the perfect project to build upon. Converting from S-video to RGB is unfortunately one of those things that seems like they should be simple, but turn out to be complex. The old analog chips that do it are hard to source and hard to use. This converter can be found for about $80, but I don't know if it's any good.
The OSSC has everything you need to do it though, and they have already solved most of the important problems like generating proper HDMI and getting the hardware built. Integrating something like the TVP5150AM1 seems plausible. |
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