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Moth3r

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Join date
26-Oct-2004
Last activity
16-Jul-2017
Posts
4,892

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Post
#510244
Topic
Harmy's STAR WARS Despecialized Edition HD - V2.7 - MKV (Released)
Time

Harmy - as I mentioned in the 70mm thread, I got a chance to watch this at the weekend and thought I'd post my comments. Sorry I didn't post earlier.

Before I start picking nits and getting Rob all distressed, I'd just reiterate how important this project is. It really does seem like, for the foreseeable future at least, it's the fans who will save Star Wars. Hairy Hen's fan made 70mm 6-track recreation is wonderful, and Harmy's video is just as impressive.

When I watched this (with my son) I didn't notice any "new" or SE elements. The 2 hours flew by; even though I knew it was a reconstruction and not authentic 1977 it felt like I was watching the film I love, but for the first time since seeing it in the cinema I could see detail that gets lost in laserdisc transfers and the GOUT DVD. Finer details in faces and the SFX modelwork really stood out for me. I didn't notice the DS battle glitch, and normally I have a good eye for spotting single frames of corruption!

(Disclaimer: the remainder of this post should be considered as positive ideas for improvement and not nit-picking.)

The crushed blacks are still an issue, but it's more than just that - the image to me feels like it has lost some of its cinematographic characteristics. An example would be the red lights in the corridor battle that cut though the smoky atmosphere as if it wasn't there. I noticed the same effect in Ady's ESB reconstruction. Mike Verta discusses the phenomenon about 3/4 of the way down this page.

There were a couple of shots that did stand out as being lower in quality - the infamous vas-o-cam shot in Mos Eisley, and the Tatooine sky colour reversion (this shot).

Unfortuately, as the above are both down to the sources available, I don't think there's much that can be done about them.

I also noticed occasional compression artefacts in the form of mosquito noise, particularly in dark backgrounds. I don't know if this is down to brightening up the image bringing out artefacts in the source, or compressing the video down for a DVD9, but I was pleased to read that you will be doing a new version using the BD video. I look forward to it!

Post
#510236
Topic
Star Wars coming to Blu Ray (UPDATE: August 30 2011, No! NOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!)
Time

zombie84 said:

... even a good mono source played through the centre channel will sound poor. The centre channel not only gives you bad audio spread, but it's a very weak speaker. Ideally you should be playing it back through at least one left and one right tower/bookshelf speaker. So, it's more that your equipment setting sucks balls. I don't know why they put the default to be centre-channel though, that's probably a consequence of compromsing for 5.1 defaults or something.

Centre channel speakers should be matched to the other speakers, and not be weaker.

You can listen to mono soundtracks through the left and right speakers (effectively creating a "phantom" centre) but this is not ideal - you need to be sat dead centre between the speakers. It's better to use a "real" centre if you have one.

1.0 tracks default to the centre speaker because that is the ideal way to hear them.

Post
#509978
Topic
Star Wars 1977 70mm sound mix recreation [stereo and 5.1 versions now available] (Released)
Time

I listened to the Star Wars 70mm 6-track recreation for the first time over the weekend (on Harmy's de-specialized AVCHD). I don't have a high-end separates 5.1 system, just a "home cinema in a box" type thing.

My review in one word - flawless.

I couldn't hear any joins where the '93 mix had been patched with bits of the '77 mix, and it's nice that the added Alderaan debris and detention block glass smashing sounds have gone. I think you've got the overall dynamics and bass volume spot on.

I will always have a soft spot for the mono mix; it's the one I grew up with and in terms of content is the most complete sounding. But for the overall sonic experience this is the mix I'd listen to again and again.

Post
#509963
Topic
Playing AVCHD from USB stick on PS3
Time

I used TSMuxer to create the folder structure with split m2ts files. I also used AVCHDMe to rename non-compatible filenames to 8.3 format.

On copying the folder across to the memory stick (actually an 8GB SD card with a USB adapter) I discovered that it wouldn't fit - 8GB was actually about 7.45GiB, whereas a DVD9 is 7.95GiB. (I thought memory always used "binary" prefixes, unlike hard drives, but what the hell.)

I might have been able to make it fit if I'd taken out some audio tracks when remuxing. However, on checking the files that I had copied over last week I found a complete m2ts file, as well as two corrupted files and what appeared to be a transcode. The m2ts file on the PS3 hard drive was complete and (I think) untouched, so I watched that.

For the future, sharing the virtual drive root in PS3 Media Server was probably the wrong thing to do, and I should have just shared the stream folder or even the m2ts file itself.

Post
#509941
Topic
Info Wanted: Moth3r's PAL trilogy vs. anamorphically enhanced GOUT's
Time

It has since been discovered that the Region 2/4 PAL disc of Jedi is slightly more detailed than the Region 1 NTSC. So the best would be:
ANH - Region 1 NTSC
ESB - Region 1 NTSC
ROTJ - Region 2/4 PAL

But I must stress that the quality differences are very, very small.

As for your suggestion, resizing up, filtering, then resizing back down to target res is a common trick - some filters work better if they have more pixels to play with. Upscaling with one of the new EDI filters may give better results.

Post
#508754
Topic
Complete Comparison of Special Edition Visual Changes
Time

none said:

^ nice and this leads to an interesting development about all the theater performance recordings.  Turns out the MeBeJedi/Starkiller is not from 77 but most likely 81.  So mthr's is the true only 77 recording!

And Puggo Grande.

I can understand the GOUT having the 1977 crawl with the 1981 credits, but why would the MBJ/Starkiller version be the same?

Post
#508397
Topic
Laserdisc players - screenshot comparison
Time

Moth3r said:

[...]

With this [LG] recorder [...]

The main disadvantage is the weird interlaced chroma problem at the top and bottom of the colour bars. Might be due to a sub-sampling error in the MPEG-2 encoding/decoding.

Looking at this again, the issue is obvious. DVD recorders encode to MPEG-2, which uses 4:2:0 YUV (YV12) colour subsampling. The recorder has no way of knowing whether the material you are recording is interlaced or progressive; this particular model assumes it is interlaced and flags each frame as such.

When upconverting from YV12 to RGB24 for a screenshot, DGIndex looks at this flag to decide how it should upsample the chroma, the error seen on those screenshots above are due to incorrect assumptions used for the upconversion. If you force progressive type upsampling, the problem is fixed.

Post
#508099
Topic
Preserving the "German" Original Trilogy (Released)
Time

Another comment on pitch correction:

http://www.michaeldvd.com.au/Articles/Interviews/ShrekTech.html

AK: Is the transfer pitch corrected?

MA: We typically try not to do that only because pitch correction can add some digital stepping. So unless a director specifically asks us to do it we avoid it, as do most studios.

Post
#508078
Topic
Laserdisc players - screenshot comparison
Time

grisan said:

The BT878 is a pretty dated chip, do you have another capture card? Years ago I replaced my BT878 card with an SAA7134 based card and the difference in picture quality was pretty big.

Yes I have a newer card, based on the SAA7231 chip. I'm going to do some tests with my other LD player first (an analogue-only V4100) then swap the cards over and test again.

Post
#508077
Topic
Laserdisc players - screenshot comparison
Time

4(b). D925 - s-video - BT878 (after AviSynth processing)

This shows the result of a simple levels tweak in AviSynth with a 5-capture average (compare to the original No. 4).

The black level was originally too high, the levels tweak has brought it down to where it should be.

Multiple capture averaging is a technique for reducing noise that can, in theory, be totally non-destructive. All other denoising methods can lead to a loss of detail, either spatial (smoothed textures) or temporal (blurred motion). Even though the latest motion compensated algorithms can help, such denoisers can never be completely non-destructive.

Yes noise levels are reduced (notably in the chroma) and there is no loss of detail, but what impressed me about using this method is the virtual elimination of dot crawl artefacts at colour boundaries. You could argue that you don't actually need a 3D comb filter as this method produces results that are just as good.

Post
#508052
Topic
Laserdisc players - screenshot comparison
Time

Anyone still following this? ;-)

4(a). D925 - s-video - BT878 (using btwincap drivers with sharpness maxed out)

I've included this shot because the setup is similar to what I used back in 2004 when I did my first LD capture. Increasing the sharpness setting produces an image that initially looks more detailed. However, if you look closely (and compare with picture No. 4 above) you will see that the added detail is an illusion caused by the addition of false halos that are not part of the real image. It also has the effect of increasing the overall noise level; I really dislike this oversharpened look now.

Post
#508029
Topic
Preserving the "German" Original Trilogy (Released)
Time

grisan said:

AFAIK the vast majority of PAL movies are not pitch-corrected. Especially in the VHS/LD era this was really uncommon. I guess I need to gather more information about this and make a sound comparison first.

It is true that the vast majority of films released in PAL format have audio that is simply sped up. However, the 1995 UK VHS releases were pitch corrected (ie the film runs 4% faster, but the audio retains the original pitch).

These are the tapes I'm talking about:

(Wow, coincidence - second result from a Google Image Search was from a site called http://www.haku.co.uk - turns out this belongs to Citizen (see this thread) who hasn't been here since 2006...)