Infoseite // Cut Loss of DV source material



Frage von Kernfusion:


Hello,
I'm still pretty new to the field of video editing and would like to clarify 2 basic things before I get started (in the forum I have not found it, incidentally).

How do you deal professionally for when processing the finished home video?

1. If it is sent to cut out until all the usable scene from a film source 1h, erstmal so lossless uncompressed cache (avi) then put the whole in the desired order with missing effects and save them all as mpeg?
Or I'd better have time to compress the individual scenes in order to arrange it in the desired number and sequence ....
Wait I thought actually that it is advantageous to compress with as long as possible in order to obtain the best possible quality. Now the question arises, however, is the avi file which I capture from the camcorder (already compressed, so I think even at times 3.65 Mb / s movie!)?

2. I've noticed if I make a film from the camcorder to the hard drive load it in my Win Explorer, additional data such as movie length, format, ... displays. The odd thing is when I go into a scene Premiere Download (Export Movie Settings Microsoft DV AVI), this information is lost! What I can do better

Thanks for your support
Kerni

Space


Antwort von Ephraim:

Hello,
s.Anfang should be no compression is possible, which always goes hand in hand with a loss s.Qualität.
The question of whether all the material to be loaded or only scenes that depends on the quantity and the type of ball.
Most is used to the camera. Then I would bring all the material uncompressed to disk. Then you can do it, without burdening the drive to the camera, using suitable Programs (there are quite a lot), divided into scenes.
At least, I do it and it gives me no preference whether it is professional or not. Results count.
Good editing programs I know work with AVI files. The conversion to MPEG is therefore only useful when a finished movie, when the DVD or CD is to be averted. However, the only lossless archiving of the finished film is still the AVI format, so the finished film was to be played back on the camera, which requires, however, is dv-in enabled (which you can do afterwards, depending on the Year of the camera, ). Well ...

Space


Antwort von PowerMac:

Sorry, but since the term AVI is incorrectly used again and again:
The camera is a DV stream from AVI and no!
AVI is a container format for Windows, not more.

Space


Antwort von Tom2:

Hello,

So it makes no sense in the film of ner DV Camera in an uncompressed AVI bring. It is nunmal been compressed in the camera. So just capture via firewire and start cutting.
For home video DV always enough ... You do not want keyen yes or so ...
Regards
Tom

Space


Antwort von Kernfusion:

Thanks for your responses.

@ ephraim: I think you have been correctly identified. I have a 60min Holiday film, where I will then make a 20-minute cut highlights from it. To this end, I'm with a capture program, the individual scenes on the hard drive (brought Szeneanalyser - avi).
You write "I would bring all the material uncompressed to disk," I'm assuming that what I did with S-analyzer uncompressed on the hard drive, in the sense of "not next compressed as it has taken the camcorder "is, right?

@ tom2: Which ending for then please have a DV-format scene, if not avi?

Question: Are there different compressed avi format? In my case corresponds to a sec about 3.6 Mb

How is it in Premiere, when I reinlade a scene and readjusting the colors and would then save this scene again s.besten lossless (uncompressed).
Is that with Premiere or do I have to purchase an a special plugin / program to make it possible loss but wait to meet my needs (color, contrast, adjust ..) can save again?

Regards
Kerni

Space


Antwort von Nightfly!:

Hello Fusion!

Only a short addition:
"PowerMac" wrote: Sorry, but since the term AVI is incorrectly used again and again:
The camera is a DV stream from AVI and no!
AVI is a container format for Windows, not more.


http://de.wikipedia.org/wiki/Containerformat

Generally about codecs:
http://forum.slashcam.de/re-welcher-codec-ist-der-beste-kompromiss-vp116667.html?highlight = # 116,667

Specifically DV codecs:
http://www.slashcam.de/artikel/Basics/Umrechnungsfehler_bei_DV-Codecs.html

That means less depending on your material many times you are modifying the better your quality. With good DV codec that limit is size 5 conversions, (VISIBLE to detect a difference even with the statues of Mainconcept and Canopus and is scarcely a difference will appear as and when the moving images do not.)

For DV editing frame-based compression are favorable (see "General Information about codecs").

The choice of the best codecs s.of therefore depends not 100% accurate representation rather than of sense (= perceptual) quality
and the intended use.

Greeting
Nightfly!

Space


Antwort von mdb:

"Nightfly" wrote: For DV editing frame-based compression are favorable (see "General Information about codecs").

This is the most important point, I think. If only I-frame is compressed, you can cut s.jeder hard body has no additional losses. Then there is no synonymous generational problem. The whole course only as long as you do not bildbeeinflußend (ie, working diaphragms, filters or something)

Space


Antwort von Kernfusion:

Hello mdb and nightfly,

Now I am a little confused. But if I understand correctly, you have been thinking a step too far - namely, the compression s.end when ready to burn the full movie "on DVD is".
Or I am wrong here?

What I fundamentally do not understand is what format is it really that what I spend avi Scenanalyser. Because it looks like is, avi) avi indeed not the same (see container format.
How can I now get the optimal data-stream from the camcorder when we say hard disk space and computer speed, do not play a role?

And if I have done that, how do I do it again in the 2nd step, the individual scenes cut losses and in the specific color corrections with Premiere had made, of Premiere back to the optimum hardware drive? Lord I have of that time (the editing program) loaded with losses rangehen s.The whole thing?

Thanks

Space


Antwort von Ephraim:

[quote = "fusion"] Thanks for your responses.

@ ephraim: I think you have been correctly identified. I have a 60min Holiday film, where I will then make a 20-minute cut highlights from it. To this end, I'm with a capture program, the individual scenes on the hard drive (brought Szeneanalyser - avi).
You write "I would bring all the material uncompressed to disk," I'm assuming that what I did with S-analyzer uncompressed on the hard drive, in the sense of "not next compressed as it has taken the camcorder "is, right?

So it is.

Space



Space


Antwort von MiXMaster:

"Fusion" wrote: Or I am wrong here?
Yes. The material coming from the camcorder is already compressed. Raw Real-Mbit video with 240 / s would probably overwhelm our resources. The important thing is that that material should not change, except for the final output.

Quote: How can I now get the optimal data-stream from the camcorder when we say hard disk space and computer speed, do not play a role?
DV is DV. If you are the receiver via Firewire, you have the optimum. Since you can not do anything next turn.

Quote: And if I've done it, how do I do it again in the 2nd step loss cut the scenes
Hart is cut losses

Quote: And in the specific color correction was done with Premiere
At this point you will inevitably lose quality because the premiere mpg must unpack compressed images, edit and repack. At what point (s.wieviel generations) that comes into play, I can not tell you. Next synonymous Otherwise you can not do anything, you give DV purely to the editor and should rausbekommen DV. The only moment where you can influence is the transformation into a DVD compliant format. As you can influence the quality.

Space


Antwort von mdb:

"Anonymous" wrote: ... A lot of stuff I wrote and forgot my login

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Antwort von Kernfusion:

Thanks for your help now I know from me.

Regards
Kerni

Space





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