Amateur, computer-based video editing and production

Archive for February, 2012

My rules for digital video

Hi:

Here are my rules for digital video:

1. Whether compressed or not, the video must have a sample-rate of at
least 148.50 mhz, and a progressive-scan image format of at least 1920
X 1080 pixels.

2. The only compression allowed is *real* WMV. No other compression
format is permitted.

3. In its uncompressed form, the video must have a color-depth of at
least 32-bit

4. If compression is used, then the sample-rate and the image-format of
the compressed and the uncompressed version of the video must be the
same.

5. If compression is used, the only thing that should be decreased is
the color-depth. The sample-rate and image format must remain unchanged

Regards,

Radium

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Shifting pixellation artifact with TMPGEnc

I’ve got some segments of various beach scenes that I took. I find that
when converted to mpeg, there’s this rhythmic "shifting" artifact
obvious on the beach areas, sort of makes me think of the alternating
lights at a railroad crossing.

I’ve changed the bit rate from the default 1150 to 8000, different rate
control setting, various motion search precision levels, it’s still
there. The original source avi is DV. The original avi files look fine.
Using TEMPGEnc Plus 2.5

All input is appreciated.

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joining 2 mpegs with different framerates

Hi.
I have these 2 mpeg files with different framerates: 23.976 and 29.970.
How can I merge them in one mpeg?
I have tried changing the framerate with virtualdub but the audio gets
shorter and out of sync.
Any idea?
Thanks,

Robbie.

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Refilming Old 8mm Home Movies with Recommended Camcorder

I have a large box full of  old, 8mm reel home movies–the kind that
plays on old-style 8mm projectors.

I want to somehow transfer all these onto DVDs and/or into my PC.

It is expensive to have this done through a professional video company,
so I probably would be better off trying to buy my own camcorder and
refilm all the 8mm reels and then upload via USB to my PC.

I have read reviews for a lot of different camcorders, and it seems
that
the majority of them do not film very well in low-light conditions, so
I am not sure my idea will work all that great because I would be
filming the
8mm reels in low-light conditions in a darkened room.

My questions are the following:

What does everyone think about this idea?

Has anyone tried this before and what were the results?

Are there any recommendations for camcorders that film well in
low-light
conditions and would be suitable for what I am trying to do?

Thank you.

Jay in San Diego

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Software advice please

I am backuping up my camcorder tapes to my PC with a view to making a few
DVDs. I have ULead DVD movie factory 5 to produce the DVDs, but I would like
a piece of software that can compress the raw files coming from the
camcorder. Importantly, I want to keep their quality. I am using firewire
and WinDV.exe and getting raw 720×576 files. Each 1 hour tape is taking up
about 12GB on my 100GB hard disk (laptop) and produces between 20 and 40
files. Is there any software (free?) that will compress the files using a
high quality (generally available) codec that DVD Movie factory 5 will then
be able to read. I have quite a few tapes and at 40 files per tape, that is
going to be a lot of files, so I would like to be able to do this in batch
mode?

What software is freely available to compress/convert AVI files in batch
mode?
What codec would everyone recommend – I need high quality as a priority as
size is bound to be much smaller than the raw AVI files I have now!?
I’m new to all this, so there another newsgroup I should ask this question
in?

Thanks for any advice.

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Comcast and Firewire – not HDTV?

Do most HDTV cable boxes have Firewire, so people can capture the video
pretty easily?
What about digital NON-HDTV?  SDTV?
Can I asl the cable company for a cable box with a firewire port so I
can turn my PC into a "ghetto tivo?"

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Progressive scan DVD players and 72Hz HDTVs (PureCinema, 3:3 Pulldown)

Hi folks,

I hope the two-group crosspost is appropriate.  I know there are some
video whizzes on R.V.D, but my question is more along the lines of home
theater.

Anyway, I recently discovered what appears to be a great feature in some
HDTVs, which is 72Hz support.  With this, DVDs can be played without the
judder that 3:2 pulldown introduces.  (which I find terribly annoying in
NTSC DVDs).    I’ve got some questions about this sort of thing, and
progressive scan DVD players.

1) A few spot checks of my DVDs seem to indicate that film-derived NTSC
DVDs are generally "hard telecined".  In other words, the MPEG is
encoded as 29.97fps, pre-telecined.  And an interlaced output DVD player
will just do a "dumb" playback of the video and it’ll already be in NTSC
compatible format.   With progressive-scan DVD players, do they just do
an inverse telecine to revert the video back to progressive frames?
(which I guess should be lossless, since it’s occurring in the digital
domain)

2) If a DVD source is indeed full frames and not telecined, will a
progressive scan DVD player just send the full frames as-is to the TV?
(duplicating frames in the 3-2 pattern to get the required 29.97 frame rate)

3) What kind of connection is required for progressive scan output to
the TV?  Composite and S-Video are out because of lacking bandwidth,
right?   I’ve read that Component Video can support progressive, but
what about DVI or HDMI?

4) Some Pioneer TVs support 72Hz display refresh rates to eliminate DVD
judder.  A.k.a Advanced PureCinema or 3:3 pulldown.   Does this feature
actually work as well as advertised?  (some Cnet review I read implies
"no").  Do any TVs other than Pioneer support this?   To me, it seems
like a must-have feature!

5) Is a special DVD player and/or connection required to pull off 72Hz
playback?   Or is just a standard progressive scan player with the
standard connection required for progressive video good enough?   I
guess I’m not clear as to how the feature is actually pulled off.
Either the video signal is sent to the TV at 24Hz (which would make me
think that special DVD playback hardware is required).   Or the video is
sent to the TV at 29.97Hz, and the TV duplicates frames as appropriate
to achieve 72Hz.    (Now that I’ve typed that out, I’d assume it’s the
latter)

I’d appreciate any sort of feedback on any or all of the above items.

Thanks!
-WD

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Please Help Us

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Is "Go Video" A good Brand?

I’m looking for a DVD-recorder/VHS VCR that can read from PAL DVDs…
and display the image on my NTSC TV.
I do not want to play PAL VHS tapes.
right now I’m looking at the LG DRY-517.
I see other cheaper ones from Go Video and Lite-on, but I don’t want to
end up with a lousy unit.  Firewire input is also a must.
iIs there anything from Sony?

Thanks!

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amazing footage

wow amazing footage! Cant wait to see more like that

New place for websurfers:
http://www.surfloaders.com

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