Quality of MPEG material used in a video presentation...

Hi all,
This is my first time working on a video that will be displayed via laptop to projector to screen. Some of the material provided to me was in MPEG format. The MPEGs look fine on my computer monitor... but my question is, will they look blurry or pixelated when they are projected to a larger size?
(FYI, I used MPEG Streamclip to convert them to Quicktime movies so that they could be manipulated in FCE2).
Thanks,
Karen

Hi Karen.
They should be OK.
You are looking at your monitor from about 2 feet or less.
I don't know how big a screen you will use. Let's say it is 6 feet across. That will make it about 4 times the size of your monitor.
The audience will not be viewing it at under 2 feet. They will have to be 6 - 8 feet away, in which case the effect will be the same as you viewing your monitor.
The only loss of quality will come from the projector itself - but you can't do anything about that.
Ian.

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You want to use the "I have a license..." option, since clearly the music is not yours, but Apple has granted you a license.
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Another option for external video is a USB video capture
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I have now tested iMovie 11 with a Canon HF100 PAL version. Shooting in progressive.
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I just posted this for another user with the same problem.
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As long as you have only one video you want to play in the window, you should have no problem.
Preview may not display correctly.
The easiest way to do what you want can be done in Premiere just as well as After Effects. All you are creating is the background video and audio. Any titles, buttons, and highlights can be done in Encore or Photoshop. I prefer PS.
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JSS1138 wrote:
Re: Using You Tube video clips question:
The short answer here is, don't. (Assuming that if it was yours in the first place, you'd have the original and not have to use the upload.)
And Bill, you should know better than to help someone violate copyright law.
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Yes be smart by mentioning that you seal music via p2p software. But also realize that the only format that you can use to sync videos to the ipod is specified on the technical specs of the 5g ipod here:
"H.264 video: up to 768 Kbps, 320 x 240, 30 frames per sec., Baseline Profile up to Level 1.3 with AAC-LC up to 160 Kbps, 48 Khz, stereo audio in .m4v, .mp4 and .mov file formats
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I am going to guess you are using windows operatong system so to convert video you will need this software:
http://www.videora.com/en-us/Converter/
get support for this software here
http://www.pspvideo9.com/forums/index.php?c=8
this is not apple software so dont ask questions here for this software.
Well to get other video you could always BUY THEM if you can do that. Hope your smarts get better!
GFF

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That's a bizarre question... you're going to have to explain yourself better.
A "motion vector"... what's that ?
I'm guessing that you automatically want to compute the directions of one or more arbitrary objects in a video clip ????
Are you expecting it to be 2D or 3D ?
Any video clip, or a pre-defined scene like a table top experiment ?
regards,
Owen

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Hi everybody
Someone can help me with the following problem?
I made a good receipt for order with a movement type 101. We are using the QM module, then with the movement type 101 an inspection lot is generated, consequently the amount entered is place in quality inspection. For any reason the inspection lot was not generated or this was canceled. My problem is that, now the amount entered is in quality inspection and there is not a lot inspection to move the amount from quality inspection to unrestricted use.
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hi carlos
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Trimming changes quality of H.264 1080/60p mov video

Trimming changes quality of H.264 1080/60p mov video
Hi,
I have the following 25 s video (according to QT X inspector):
Format: H.264, 1920 x 1080, Millions
Linear PCM, 24 bit little-endian signed Integer, 2 channels, 48000 Hz
FPS: 59.94
Data Size: 84.7 MB [= file size]
Data Rate: 27.08 Mbit/s
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Data Size: 17.9 MB [= file size]
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Some weeks ago under Lion (and also still now on another Mac under Snow Leopard)
I didn't have this problem.
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I would call this a bug (or at least a threat), when - after trimming a video - characteristics are modified without confirmation!
I would consider it a "bug" IFF (if and only if) the results were unintentional. Unfortunately, it is likely the engineers/designers knew exactly what they were doing and did so solely in an effort to remove what might be considered confusing options for the novice but which you and I consider options essential to our desired project work flow.
What if I would have trimmed my footage, deleted the originals, and later (in my editing software) noticed the problem?
My assumption here (and it is only an assumption), is that they gave no thought to the possibility that your preliminary "rough" edits might be a prelude to further editing in a multi-step/multi-app work flow. It seems they consider the QT X app edits to be both the alpha and omega in your editing process and only desire to provide the novice with a finished "distribution" product which does not require the novice to make any export decisions.
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I would probably compare the QT v10.0 output against the QT v10.1 output using an app like "Dumpster" which will give you the exact frame count for both (i.e., does the latter actually have exactly half the number ± 1, as well as, check the distribution of data for Key/I-frames, etc. For very long clip it should be obvious if the data is being recompressed or merely copied to a new file container by the amount of time this write action takes. Also the file container itself is usually indicative with MOV file containers being used for the "copying" all data tracks and M4V file containers used when data is recompressed, track limited by data type, and finally remuxed to the M4V container.
Last question: Is there a way to determine if the frames had been re-compressed too, or if only every second frame had been ignored? (But in this case shouldn't FPS be 29.27...?)
It would depend on the algorithm used to drop the frames. For instance, the algorithm could simply drop every other frame but maintain the same timing reference or change the reference to provide a preprogrammed maximum 30 fps to maintain compatibility with devices having the 30 fps limitation. Other algorithms might look for "duplicate" frames (i.e., those displaying little or no change) for dropping and apply VFR time referencing to still achieve a 30 (or 29.94) fps target "average."

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What I need to know if it is a dramatic different in quality that I should use DVD Pro instead of iDVD.
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Quality of MPEG material used in a video presentation...

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