MPG compression

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CaTaClYsM
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MPG compression

Postby CaTaClYsM » Sat Jul 27, 2002 3:44 pm

anyone have any good compressin settings for TMPGEC?

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TobinHood
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Postby TobinHood » Sat Jul 27, 2002 11:58 pm

Read ErMaC'sgiude, I think he mentions it somewhere in there. Me I just use the VCD settings.
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Bushido Philosopher
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Postby Bushido Philosopher » Sun Jul 28, 2002 9:17 pm

is that really the best thing though?

i set it to ErMaC's guide and i cant help but feel the video just looks not as good as it should be....

maybe it's just me...? :?
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VegettoEX
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Postby VegettoEX » Mon Jul 29, 2002 1:09 pm

Completely disregarding MPEG encoding for a second, the first thing to keep in mind is that regardless of what you're going to end up doing with your video...

The footage can't get any better that what you're originally providing the encoder with. If your video doesn't look so hot, MPEG-ing it won't help.

As long as your video looks good, the final result can be anywhere from crap to great.

Personally, my final AVI encodes have been 720x480 HuffyUV exports from working with VOBs. Quality can't get any better. Therefore, the MPEG encodes have been just about as good as they're going to get.

Previously, I simply used to make 320x240, 29.7 fps, 192 kbps stereo sound, 1500 kbps constant quality MPEG encodes. They looked decent.

Lately, I've been doing 352x240, 29.7 fps, 192 kbps stereo sound, variable bitrate (3000 max, 300 min, 2000 average) kbps MPEG encodes.

Check out Meri's Utena and Ceres videos, and our Bebop / "The Professional" trailer. That's what our MPEG encodes are coming out like.

Granted, we could do some more with them, more closely following along with ErMaC's guides, but at that point, I guess it's almost irrelevant. Someone's going to be viewing them on a computer, anyway, and at that point, they're pretty darn good looking.

Always be sure to put the motion precision setting thingie at slowest / best quality :D
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Postby alternatefutures » Mon Jul 29, 2002 1:35 pm

Another great way to increase quality is to both edit and encode your footage at 24fps. Most (note: MOST, not ALL) anime series run at 24fps (often dropping down to 12fps) so when you encode at 29.7 fps you're actually wasting space on 5.7 repeated frames (which counts against your bitrate, of course).

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jbone
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Postby jbone » Mon Jul 29, 2002 1:44 pm

NTSC runs at 29.97fps, <I>not</I> 29.7

FILM runs at 23.976fps, <I>not</I> 24

These differences in number may seem small enough to be insignificant, but they're actually very important.

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VegettoEX
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Postby VegettoEX » Mon Jul 29, 2002 2:55 pm

Forgot the 9.. heh.. my bad :P.
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Postby alternatefutures » Mon Jul 29, 2002 3:18 pm

Yes, but you try getting Premiere to drop that extra .004 fps.

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jbone
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Postby jbone » Mon Jul 29, 2002 4:18 pm

Fortunately, the difference between 23.976fps and 23.98fps is not <I>nearly</I> as significant as the difference between 29.97fps and 30fps. :-)

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Postby alternatefutures » Mon Jul 29, 2002 6:14 pm

See, the interesting thing is that I've been editing solely at 24 FPS with 23.973 source and yet have had absolutely no problems. I even find myself with less chop than the majority of AMVs on pan shots (go figure). I just use 24 fps 'cause I don't know what will happen when I encode it in TMPEG with that .004 frame difference. Plus, integers are easier to deal with when doing frame by frame editing, that and Bryce doesn't grasp partial frames.

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Postby AbsoluteDestiny » Tue Jul 30, 2002 3:41 am

Well, the ideal way to do it is to set your footage to 24fps (either in avisynth or with virtualdub or whatever). Then you make a slightly faster version of your audio stream (I have a guide on how to do this if you are interested). You then edit in premiere with everything at 24fps.

When you've finished, you make it run at 23.976 fps in virtualdub and put on your original unchanged audio stream. It will match fine and you'll have proper 23.976fps footage.


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