| |
MagerValp
Registered: Dec 2001
Posts: 1055 |
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/ |
|
... 68 posts hidden. Click here to view all posts....
|
| |
Krill
Registered: Apr 2002
Posts: 2839 |
One would think that affordable ADC+FPGA/CPLD circuits for this purpose might be around the corner... |
| |
MagerValp
Registered: Dec 2001
Posts: 1055 |
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. |
| |
chatGPZ
Registered: Dec 2001
Posts: 11107 |
krill: sure, and R&D usually comes for free :) |
| |
JackAsser
Registered: Jun 2002
Posts: 1989 |
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 |
| |
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. |
| |
MagerValp
Registered: Dec 2001
Posts: 1055 |
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. |
| |
MagerValp
Registered: Dec 2001
Posts: 1055 |
Bought a cheap Extron IN1508 on eBay: https://www.ebay.co.uk/itm/222736297025
Here's hoping it doesn't suck. |
| |
Krill
Registered: Apr 2002
Posts: 2839 |
Quoting Groepazkrill: sure, and R&D usually comes for free :) I was thinking of some hobbyist design, not a commercial device. As in, affordable components + open source. |
| |
chatGPZ
Registered: Dec 2001
Posts: 11107 |
even then it doesnt come for free. time spent on it directly translates into money lost for most people. and most people wouldnt want to solder an FPGA on prototype boards either, so someone needs to be paid for that too. (the cost of the components is almost never the relevant factor for this kind of stuff, btw) |
| |
Krill
Registered: Apr 2002
Posts: 2839 |
Yeah, and DIL/DIP FPGA boards haven't been invented yet. :) |
| Previous - 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 - Next |
