Archiving VHS Tapes

OP here nvm i found it on google

File: 01retard.jpg (72KB, 800x500px) Image search: [Google]

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>>61210030
yeah, you should try googling shit before asking.

>>61210054
OP here (Seriously)
You Think I didn't do that already?

>>61210030
OP. Since you found the solution, mind posting it????

>>61210145
So you think I found the solution? I don't have a solution, that's why I'm here, to see if anyone else has come up on this subject specifically.

There's little to no chance you'll ever find a way to do this. Unless you build / modify a machine that will do it, or find someone that has done it. As far as I can tell, there's no such machine available.

All you can really do is approach video restoration companies with your idea and see if they can find a way to capture the data in such a way.

>>61210761
Thanks Anon

>>61210812
The only way I can imagine you'd begin to do this is to connect a spectrum analyzer to a modified high end VCR head (rotating at like 1/8th standard speed) in a completely radio-isolated environment to find out where the bandwidth is (including the bleed) and record the output to a file, then play it back in a SDR using FM + NTSC. You'd REALLY have to play with the bandwidth to get it right.

You're looking at upwards of $30,000 USD for a good enough spectrum analyzer for this purpose. And then there's the cost of actually isolating it from any outside interference for the playback speed you'll need.

>>61210927
You might even need to go less than 1/16th speed to actually be able to record wide enough. May even need a bit more than 30k for a spec-a that will actually record that many datapoints. That's one complicated operation. LOTS of datapoints to record. LOTS of RAM required also to actually use the monster output file that would result from this. I doubt there's even a SDR written that can use the amount of threads required for getting the playback speed back to normal. The whole file would need to be available in RAM.. We're talking 100+GB file too.

i would not go past basic multi-sampling/averaging
that is, play/record the tape multiple times, then combine the results to make a single, denoised result

>>61211341
ps. this is something that is used, and there are plenty of tools to help you
check out avisynth/vapoursynth and their various plugins and scripts
such as
http://avisynth.nl/index.php/Median
>"Median.dll is a filter plugin for AviSynth which generates a pixel-by-pixel median of several clips. This is particularly useful for filtering out noise and glitches from multiple VHS/SVHS/8mm/Hi8 tape captures, but can be used for other purposes also. "

File: medianblend.jpg (109KB, 1079x575px) Image search: [Google]

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>>61211391