Timothy Anderson
Forum Replies Created
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Hey Michael –
Illustrator file is 57MB and I actually don’t have the Motion files – just the resultant HD QT’s for each title card which is around 100MB. Motion was only needed to create sequence matching QT from transparent ILL file – no animation, effects, etc…
Quick note: The pulsing problem DOES NOT occur in VBR One pass enconding in compressor – only in TWO PASS – What is your theory on this? Initially I thought due to the static and long take nature of the scene compressor was looking at that scene as a spot to save space and was likely using a low bit rate for it under VBR (especially since the CBR encoding at 7 solved the problem). However, my theory is shot now that the encoding at VBR one pass results in NO pulsing. Ultimately I would prefer CBR, but what kind of quality loss would a one pass VBR best result in versus a 2 PASS best? Your thoughts are appreciated.
Tim
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I already did spend money to fix this when I bought the new FCP studio. I am running Compressor 3.5.1 on a Mac yes.
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The pulse problem occurs on both my external ASUS HD monitor as well as my 16:9 SD television with a standard SD DVD deck. The pulsing seems to be caused by the 2pass VBR encoding of the MPEG-2, when the scene is encoded by itself with a CBR encode of 7ish, the pulse disappears – my problem is obviously I cannot encode the whole film (89 mins.) with a CBR and fit it on a DVD.
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Hi –
The title source files are Illustrator stills created at the film 1080×1280 setting, then individually brought into Motion to position and bounce as QT with sequence matching codec/settings – each QT was then laid into the sequence like a clip.
You want the Illustrator file of one of the title cards?
Tim
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Michael –
I have discovered the problem of the pulsing problem – the VBR 2 pass seems to be the cause. I just trailed several scenes on the own and it seems while the VBR yields a better result on the whole DVD, the scene having the pulsing is strictly due to the VBR. When just that scene alone is encoded both with a CBR of 7.5 and a 2 pass VBR of 6.4/7.7, the pulsing is eliminated with the CBR, but persists at the VBR. (Sigh). I cannot encode the entire show (TRT 89 mins.) on DVD at a CBR, however. Thoughts?
Still no solution on the HD titles looking like absolute hell on the SD DVD. Completely befuddled – what’s the point of vector film docs in Illustrator if they are downsized like bitmaps? Want to yell!
Tim
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The ProRes anamorphic SD nesting is an interesting idea – I will give it a go – my only concern is I did try a sample export of the problematic title sequence at 720:480 ProRes 422HQ to see if FCP may scale the HD titles down better than compressor, but NOPE! Same problems – I am just wondering why the downscaling is a problem since the titles were originally vector graphics in Illustrator before becoming motion QTs…just stumped. Surely there is a way to get HD titles to look proper scaled on SD DVDs…
As for the QT HD into compressor option – I have already tried that to the same results once compressed into the MPEG-2 – bad titles and pulsing…
I am viewing the encodes initially on DVDs on both a 16:9 flatscreen TV with an SD DVD player and an external ASUS monitor, both showed the problems nearly identically. Now, as I trial and error, I have learned I can simply import into compressor and simulate the DVD to see if the problems are still present, which the simulations show thus far that they do in fact still persist.
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Hi Dave,
Yeah, the 1280×1080 is actually a native codec for DVCproHD and mostly Panasonic. The 23.98 fps – this is an HD feature – is native to the footage, not of my creation in FCP.
As for monitoring, I am using both a 16:9 television with standard DVD player and an external HD ASUS monitor – both display the problems with the titles and the pulsing…
Tim
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Hi –
Sure am – Pixel Aspect Ratio is native at 1280×1080 HD – what is so strange about that?
Codec is DVCproHD 1080p
Tim
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Hi Michael,
Thank you for the response. Sorry, here are native sequence settings in FCP 7, please let me know if there’s anything of importance left out:
Codec: DVCproHD 1280X1080
Base/frame rate: 23.98
Aspect Ratio: 16:9
Field Dominance: None
Rendered at High Precision YUVI have already tried exporting as self-contained QT and bringing that into Compressor, the results are the same as direct send to compressor.
In compressor, I am not touching the de-interlace and have also tried a CBR as well as the VBR two pass with the bit rates at what I originally wrote – the VBR actually yielded slightly better overall results for the show as a whole, but the problems with the titles and that pulsing scene persisted in both occasions.
In compressor, I have the field dominance to Progressive. What are your thoughts?
Thank You,
Tim