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06-24-2020, 05:29 AM
Nunkin Nunkin is offline
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I also found a "Video-2-PC" device being sold in the UK. It doesn't have a proper name, and could be a cheap knockoff but it claims to have a "genuine 8113 chip" inside (see 2nd picture on Amazon page) - does anyone have any idea if that refers to a chip that is actually well known and good or if it's just marketing jibberish? The printing on the chip shows "Silan SC8113" if that means anything to anyone?

https://www.amazon.co.uk/dp/B0049BE3...language=en_GB

It has a click button on the device but I have yet to figure out what it is for. Presumably some sort of EZCapture click button which hasn't been acknowledged or used in the instructions.
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  #2  
06-24-2020, 08:07 AM
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lordsmurf lordsmurf is offline
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That's just another generic cheap "grabber".

Garbage.

Move along. You can find better. (BTW, I also have a few PAL Pinnacle cards left in the marketplace.)

- Did my advice help you? Then become a Premium Member and support this site.
- For sale in the marketplace: TBCs, workflows, capture cards, VCRs
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06-24-2020, 08:48 AM
hodgey hodgey is offline
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I have not used any card with the Silan 8113 chip, though I have a dongle here with the mentioned GM7113 chip, and it's indeed pretty awful. They are both chips meant to be pin-compatible replacements/alternatives for the Philips/NXP SAA7113 video decoder chip which is a decent chip used in some capture dongles including pinnacle ones and is closely related to the video chips used in the Datavideo and Cypress TBCs. The GM7113 is very bad at handling unstable video in comparison to the Philips original.

The empia USB bridge chip in the picture is the same used in a ton of different USB dongles, the ATI 600 USB also has an empia chip but it's a different one (presumably due to it having antenna connectors as well as analog video).

It's probably a step up from ezcap knockoffs, but how it compares to the more tested dongles from pinnacle/ATI/diamond etc I don't know.
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07-07-2020, 03:55 PM
Nunkin Nunkin is offline
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Thanks guys,

I have tested that usb capture device and the VC500 on DVDs and on VHS - I'm still having trouble figuring out VHS on the VC500 per another thread, but on the DVD side, I can confirm that the VC500 came out with much better image quality in my opinion - less blotchy and contrast seemed to be better. Resolution downscaling of course meant the DVD capture didn't come off as good as the original DVD either way.
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07-07-2020, 05:28 PM
jwillis84 jwillis84 is offline
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My opinion on the VC500 'class' of capture dongles is they should cost not a lot.

They all have a demodulator chip, digitizer chip/bridge chip and optionally an audio capture chip.

They are pretty bare bones and you could just about breadboard something a little better.

The Empia 2800 series of chips started out as a microcontroller for connecting a USB cable to a breadboard of parts, gradually with each new generation they added on more 'features' but generally those are of lesser quality than using an offboard (off chip) specialized chip. Its simply that it was not designed to handle video.. using the video capture on the 2800 series of chips is bare bones.. bottom dollar.

With a clear stable video signal.. you may get good video capture.. I've seen good video capture.. but the 2800 series combination is a bucket of parts that is not very tolerant to flakey or unstable signals.

There is no time base correction, no buffering of the frame in case the next frame is corrupt, no attempt to keep the audio and video capture components in sync.. they are separate streams.. its bare bones.. bare minimum capture with no options.. no insurance to compensate for the slightest defect in the video signal.

Its a great "test bed" of parts for learning how to develop device drivers, or learn how video capture works, or how tweaking a video input signal effects the results.. but

In the end.. its mostly for short clip captures.. from a stable source like a camcorder with a tbc built-in (or) for desperate situations where your budget can't afford anything else (or) where you have very little access or the capture has to be done (now) because you won't get another chance.

Using them for hours long video capture with a VCR is probably overstating what could ever be realistically done with one of these. Its good marketing.. but even if you could tolerate dropping a few frames here and there and (some) audio lip sync drift after 30 minutes or so.. it adds up.. until after 2 hours.. you just can't take it anymore.

Capture cards, and larger dongles with capture boards inside of them, have real ram memory and frame stabilizers, or genlock synchronizers.. or even .. time base correctors on their tiny motherboards. They sold at a premium years ago.. $400 or $1000 and there was a real reason. It wasn't that technology suddenly got cheaper.

Each has its place.. and everyone has a realistic budget.

But if you do this long enough.. you'll move on beyond the VC500 'class' and upgrade sooner or later.

Last edited by jwillis84; 07-07-2020 at 05:38 PM.
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