kitty666cats wrote:
Here’s a fascinating scan converter that could also work: it is one of the very few scan converters that accepts 15kHz input signals (so, essentially when it’s fed a 15kHz source it is a interlaced-only transcoder/encoder with lots of image adjustment options)! Only the CorioScan Pro *SG* models do so (and many TVone Scan Converters, who bought out Vine Micros... but those are gonna be ‘spensive). So you can encode your 480i RGBS / RGsB / RGBHV input into some nicely flicker-filtered composite out!
https://www.ebay.com/itm/302874971514That's just their first Corio FPGA design with most of the processing features disabled. The Corio2 replaced that design later on. Even if that machine wasn't limited, it would still be worthless. That particular machine has no practical use. (Maybe it could be a door stop?)
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About the Extron VSC machines:
When it comes to proper scan converters, the Extron VSC machines stand alone. There's nothing even close.
The VSC 500 and 700 are the newest and best, but the VSC 300 and 900 also perform well.
The Extron machines outperform all the competition in almost every way. They have plenty of features to fine tune the output, they are easy to use, and they can be found at very reasonable prices. Extron machines even outperform significantly more expensive ImagePro units from Barco/Folsom. I doubt even the OSSC Pro will get all the features the Extron VSC machines have. They are the pinnacle of scan converters.
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About Corio2 machines and 480i output:
The Corio2 machines can output off spec refresh rates for interlaced signals if your display can handle it. That's the only feature the Extron machines don't have. Unfortunately, the Corio2 doesn't have a real frame lock, so it still won't guarantee perfect scrolling. Image quality isn't great.
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About iScan HD+ and 480i:
The DVDO iScan HD+ outputs 480i that should be frame locked, but it didn't let me fine tune the output much. Should be 6ms of lag. Image quality wasn't very good.
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About 240p and the iScan HD+:
The iScan HD+ gets forgotten in the downscaling discussion. It's the only 240p downscaler with frame lock. I had some compatibility problems with some of my consumer televisions, but the iScan HD+ does output 240p (and a PVM/BVM is probably going to accept the signal just fine). On a compatible display: 480p to 240p, frame locked, and 6ms of latency.