Jared

Coming to a Close

My summer in Michigan is almost over, and there are some things that I need to wrap up before returning to Florida. Since I’m unlikely to fit either of my VCRs in my luggage, much less both, I’m scrambling to get as much use out of them both so I won’t have to wait until next summer.

All of yesterday, I’d used the Domesday-modded VCR to get several RF captures of three tapes – Winds of Change, Pryde of the X-Men, and Panda’s Adventures (Panda no Daiboken). I’d already had a few captures of Winds, but a couple more might might help to further reduce its visible noise. Multiple captures will likely have the same benefit for the other two films.

Panda’s Adventures is an interesting one, because it appears to have been transferred from film to video as-is, meaning its original 2.35:1 aspect ratio is squeezed into a 1.33:1 frame. I can only imagine that the distributor was in such a rush to get tapes on shelves when VHS was a new format, they just decided that kids wouldn’t notice or care. I sure !

Originally I’d only planned to capture the audio, to combine with the Japanese DVD, but I don’t know how well it’ll line up. Audio not lining up is a surprisingly common issue I’ve run into…


My “final” edit of Metamorphoses – the French version of Winds of Change – has been rendered out and made available to my patrons, though it’s far from a perfect edition. Even after having its frame rate changed from 25 fps to 24, it doesn’t quite sync up with the English version. The weirdest part though is that the French audio is even more out of sync by the end of the film, but not because of anything I’d done – it appears to be the same on the original tape. Since I plan on discarding the French audio for the next version, it’s not something I’m going to worry too much about.

What’s fascinated me about Winds/Metamorphoses, is the original version’s status as lost media. After a disastrous premiere, seven minutes were cut from the original film, its segments were rearranged, the soundtrack was replaced, and narration was added. The Japanese version is closer to the original, being only two minutes shorter, and having its segments in the original order, but still uses the replacement soundtrack. Something I’d discovered over a year ago, though, is that the English/French & Japanese versions of the film both have bits that the other lacks. When combined, these bits bring the film closer to its original length. Combining all three versions isn’t something I’m in any rush to do at this time, though.


One last thing I’d thought I’d do with my multi-format VCR, was modify it to also work with the Domesday Duplicator, so that I could RF-capture my Metamorphoses tape. After adding the connector, the VCR doesn’t work. I guess I shouldn’t be surprised – all summer long, practically any time I’ve wanted to use this VCR, it puts up a fight.

At first, the problem was that the motor that drives the tape tray didn’t seem to work. After attempting to address that problem, the unit makes a high-pitched noise when it’s turned on, which can’t be good. I don’t know if the wire I’d added is the problem, or if it might be something else. Maybe one of the components just died and needs to be replaced, which…

I try not to think about how much money I’ve spend on this project, so far. The two French tapes cost me a combined $300, and one of those broke the first time it was rewound. The VCR to play them cost another $300+, and has had one problem after another… but at least I was able to get enough traditional captures to assemble a full, fairly clean copy of the film. If it’s dead now, before I can use it with the Domesday… well at least it served its original purpose.

I’m not even sure if a Domesday capture would be much of an improvement over what I already have. Looking closely at the video, it looks like its resolution was cut in half before it was transferred to tape. Out of 576 vertical lines, the letterboxed portion only uses around 400, but the effective resolution of that area may only be 200 lines. The Domesday Duplicator isn’t going to change that.


All of this film & VHS nonsense aside, I’m looking forward to my return to Florida as a bit of a reset. All summer long, I haven’t really been able to relax. Whether it’s work, or personal favors, I’ve been doing what someone else wanted, not what I’ve wanted. Now I’m started to feel the need to draw or even animate again, but I need to get back home to do so if only so that maybe – MAYBE – I won’t be interrupted.

Stacking the Deck

I’m making some progress on the next phase of my Metamorphoses project – stacking multiple luminance captures to reduce the video noise.

For context, each of the captures goes from being clear to garbage for roughly 3 seconds at a time, due to my forcing the VCR to play back the SECAM-formatted tape as PAL. It can’t decode the color, but it tries, which apparently mangles the signal. It doesn’t do so consistently, though, so I ended up capturing the film – in whole or in parts – over a dozen times to make sure I had the full thing.

Besides replacing the garbage areas, combining multiple captures can help to improve the image quality

…the downside is I have to go through the film frame by frame to do so. At the top of each video I’ve added a number, which identifies when that video ISN’T visible. When I scrub through the film, I watch those numbers (and the brightness) for changes, then pick the swatch on the side that matches the number of visible layers. If there are 4 visible layers, the 4 swatch will divide the image by a super-white RGB value of 4, 4, 4 (normal white is 1, 1, 1)

It’s… at least as tedious a process as it sounds.


As if all of this Metamorphoses nonsense isn’t enough of a distraction, and I may now have another – I’ve successfully modded my friend’s VCR to work with my Doomsday Duplicator. It won’t work with my Metamorphoses tape, as this VCR is NTSC-only, BUT I will be able to get an RF capture of the American version, Winds of Change!

This VCR was bound for the garbage bin, but now it’s worth keeping for a bit longer!

Small Glimpses of What Was

The cropping of this film continues to be all over the place…

The trailer on the Japanese DVD has some 2.35:1 shots squeezed into a 1.33:1 frame, while an English trailer on Youtube appears to be entirely widescreen. That English trailer further reveals how much even the French VHS is cropped, although it does also help me correct the French version’s frame distortion.

Frame Job

Changing gears a bit while my VCR is out of commission, I’ve started matching the Youtube version of the film to my own captures. Both versions were by the same distributor, and yet they are cropped a bit different. In some parts of the film, the frame can be expanded by as much as 20%!

It’s just a shame that the quality of the Youtube version is so low… I’m tempted to reach out the person who’d posted it, to ask if they still have that tape and would be willing to sell it to me.

The Saga Continues

Last night, I managed to get my VCR working again. Cleaning its mode switch with a cotton swab and some rubbing alcohol did the trick, After which I was able to get 3 more captures of Metamorphoses before turning in for the night.

I’d hoped to capture the tape a couple more times this morning, before work, but the tracking error was back. Back apart the VCR went, I bent the copper tabs back up, and cleaned the drum again for good measure. Once it was put back together, the tape’s picture was clear again. For about 3 minutes, anyway.

At this point the best fix might be to solder a wire between those tabs and the chassis.

One Issue After Another

Working on cutting together a full version of the luminance for Metamorphoses… I have 5 captures so far, but will need more. Lining them up with one of the full-color captures, at some points there are small gaps that will need to be filled in.

I’ve also found a lot of dropped frames in at least one of those captures, which complicates things further. Just one dropped frame will cause a capture to lose sync with another, and in some cases whole seconds were lost while recording. It got me wondering about just how complete my full-color captures are.

Fortunately, comparing the color captures didn’t take long, thanks to the “difference” blending mode in After Effects. If two frames are the same, they’ll appear black. Any differences will show in white. Out of 6 full-color captures, three appear to have no dropped frames


My VCR continues to be quite finicky… It seems like every time I go to use it, I have to take it apart to bend the grounding tabs back into place.

I wanted to get another capture of the tape this morning before work, but fixing the grounding would have been too much of a hassle. After work, I adjusted those tabs, but the VCR back together… and now it seems like the motor that tape’s reels isn’t working. This might have to be a weekend problem.

Getting just a bit excessive (and obsessive)

I wanted to do an experiment.. With 6 copies of this film stacked together, I’m running into diminishing returns in terms of noise reduction. The only way I might get better results, is if the color and the luminance can be separated from one another entirely. That would be really easy if this were captured with my Domesday Duplicator, but for now I need to find an alternative approach. And I might just have one, but it’ll take a bit of effort…

If I force my VCR to play back the tape as PAL, I get just the luminance, which looks quite a bit cleaner than the full-color image.

Subtracting the luma version from the full-color version isolates the chroma, so I can get a clearer view of just how noisey each channel is –

Top left – chroma minus luma; Top right – red; Bottom left – green; Bottom right – blue

Blurring the color and then adding it back on top of the luma kind of works. The colors are more muted than before, even without the blurring. Adjusting the levels of the color layer increases the saturation, but nothing gets it quite as rich as the original…

Another example, using the faeries from the other day. One trick I can do once the colors are separated, is shift the individual colors around to try to minimize some of the bleed –

One downside to this whole thing is that I’ll still need to capture the movie multiple times, because in PAL mode the luma goes from clear to useless and back again roughly every 3 seconds. When it’s clear or not doesn’t seem to be tied to specific times on the tape, so I may be able to get the whole thing by capturing it several more times.

Making Lemonade

Last night I captured this tape a 4th time, and tonight I may try to get a couple more. Four captures stacked together improves the image quality somewhat, and my goal is to stack at least 10. Trouble is, apparently SECAM was just not a great color format. Isolating the red channel in particular highlights this.

Stacking multiple captures may only clean it up so much. It’ll be somewhat less noisy, but there will still be a lot of bleed.

I’ve also read that multi-format VCRs like the one I’m using are just not that great in general, but at this point I’ve sunk enough money into this project that I’m not going to look for a SECAM-only VCR. Ten or so captures, stacked, then when I get back to Florida I can look into getting a proper raw RF signal from my other VCR, since that one is much more expendable…

Nothing but Trouble

I swear, EVERY step towards digitizing the French version of Winds/Metamorphoses uncovers more problems.

I’d purchased yet another VCR, this one fully serviced/repaired, and with the ability to play back SECAM tapes. When it arrived, I tested it with a home movie recorded in NTSC… which the VCR detected as PAL. Since the tape was playing at the wrong speed, the audio was slow, and the video was scrambled. The input format can be changed manually, but doing so requires a remote, which was not included.

Testing the VCR with the French tapes went a little easier – they were detected as SECAM, but the tracking kept going in and out. A quick search online turned up a post by someone having a similar issue, with one of the responses claiming it was a grounding issue, and explaining how to fix it. I was nervous about opening up a $300 VCR that I could otherwise return for a refund, but I REALLY wanted to finally be able to capture these tapes.

After following those instructions, I put the VCR back together… and now it wouldn’t accept a tape. After taking it apart and putting it back together a few more times, it finally worked again. I’m not sure what I did to fix it, but at least it IS fixed – the tracking problem is gone, and the NTSC tape is now detected as NTSC. Even the duration counter – another thing that wasn’t working before – was now fixed!

Since VHS is such a lossy format, one of my goals is to capture each of these tapes several times, and then stack those captures to improve the image quality. Capturing the first tape went smoothly, the first time, but when I tried capturing it again, later, the VCR spat the tape out. On closer inspection, the tape had broken when it was rewound all the way to the beginning. I’m certain it can be repaired, but this was perhaps the most unexpected new problem that could pop up.

Fixing that tape may in fact be a non-issue. After capturing the second tape, and comparing the captures from both, the quality of the first tape is considerably lower. Not only that, but the cropping is the same between them.

The broken tape also being useless, quality-wise, and also kind of fitting. I’d purchased both of the tapes I could find specifically in case either one of them ended up being a dud. Now one of them is, twice over. But it also means I’d essentially spent $150 for a tape that is useless. Or $300 for the other tape. I’m probably better off just nothing doing the math on what this project has cost me so far…

Onward

My VCR’s motor didn’t take much effort to fix. A little bit of super glue, some solder to bridge the traces, and by the next day it was working again! Better still, the dab of grease that’d gotten on the one copy of Metamorphoses didn’t have any impact on it, which was a huge relief.

After capturing that one Metamorphoses tape, I ended up with more questions than I’d expected. It seems like every time I look at it, it has more surprises in store for me. A known problem may be due to the fact that I’m capturing it on a VCR that doesn’t support SECAM – periodically, the brightness will shift either up or down, then back again. What was surprising, this time, was that the brightness shift happens roughly every 3.5 seconds. It’s so precise that it has to mean something, but I don’t see much point in figuring it out. The important thing is that it’s not the tape – I’d captured it twice, and in both captures the shifts occur at different times.

The biggest surprise was when I tried to de-interlace the video. That it’s interlaced at all is somewhat infuriating – I thought the standard method of transferring film to video in Europe was to speed it up from 24 frames per second to 25. In this case, though, it appears that the first 24 frames of every second are interwoven with the next frame, while the 25 frame is a whole repeated image. This is a somewhat easy fix – for the first 24 frames of every second, half the image just needs to be time-shifted.

…except that doesn’t actually improve the quality. Instead, what it reveals is that the film was apparently processed digitally, and its vertical resolution was cut in half before it was transferred to tape.

While the halved resolution is disappointing, at the very least it’s still much clearer than the copy I’d found on Youtube. And since my VCR can’t play back the tape in color, that Youtube video could still be useful – I could extract its color, and combine that with either or both of my captures… and that’s where I ran into another surprise – my copy and the one on Youtube are cropped slightly different.

I’d bought two copies of the film, just in case one of the tapes ended up being bad in any way. Now I wonder what I’ll find when I’m able to capture the other tape. Maybe it’ll be cropped like the Youtube version, or different still? Maybe it’ll even be full resolution!

For now, the captures I have may just be something to tinker with when I’ve nothing better to do. The raw signal from my VCR is either too weak or otherwise wrong for capturing with a Domesday Duplicator, and since this film’s resolution was halved, I’m not sure if there would be any benefit to using the Domesday. And even if I do use it, it may be quite a while before VHS-decode can process SECAM. The only other option I can think of is to find another VCR that does support SECAM, but the ones I’ve seen are expensive. And whether they work is another issue…