Archived from groups: rec.video.desktop (
More info?)
"FridgidNDEditing" <blah_blah_blah_crap@hotmail.com> wrote in message
news:4d3eb83.0406030544.5f66b238@posting.google.com...
> I've got constant contract work at a church in my city, and they have
> a VT2. I am getting Vegas 5 and a laptop to work on projects when I'm
> on the road or out of town. My contractor is psycho when it comes to
> quality even though the output is accross more than a 100' of
> component co-ax cable to overhead projector, so why he is so concerned
> about the quality issue is beyond me. However is the quality of Vegas
> 5 output comparable to that of VT2 or VT2 Component Cable (component
> is a single Co-ax right?)?
>
> Any help would be appreciated.
>
Co-ax is short for coaxial In this context means that there is a
single conductor, surrounded by an insulator (typically foam
or air) with a shield that is concentric to the center conductor.
Component video typically requires 3 coaxial cables.
For video component is most often a Black and white or
luminance channel, with 2 color channels, based on a matrix.
They call this YUV component, as well as several other
designations. Betacam (analog and digital), DV, DVDs all
use slight variations of YUV component. Much of the
available professional equipment has this connection, as do
the better DVD players and TVs. This format is pretty
good over long cable runs.
There is also RGB component as used for computer displays,
but is not used much for video. In practice, it was difficult
to work with in a video system, and recording it took too
much bandwidth to be practical. Prototype recorders were
made, but they had to move the tape too fast to be practical.
RGB means that the three signals (Red, Blue, Green) are
carried as separate, but equal, signals.
S-video or Y/C is a 2 wire system the luminance channel is
the same as used in YUV component, but the chroma is
phase and amplitude modulated onto a subcarrier. When it
first came out it was sometimes referred to as component,
but that is not considered correct today. It was first
implemented for S-VHS allowing for a more a picture with
more detail and clarity (in the luminance channel) than
standard VHS, but the color detail is only a little better
than standard VHS. This format is available on most
good consumer and prosumer equipment these days.
S-video can be used for long runs, but you may need
a device to readjust the timing of the color component
on long runs (the color can become out of position).
Composite is much like S-video, except that the color
information is mixed with the luminance so they can
both run on the same wire. It has to be bandwidth
limited to keep the luminance form interfering with
the color information, so the picture is softer than
any of the above formats. It's simplicity of a single
wire to run has kept it popular for the entire history
of video. It is often used for long runs, but it often
loses some of the color and detail over long cable runs
and may need some boosting of the higher frequencies
(as do all formats if the run is long enough).
The Video Toaster 2 can deal with all of these formats.
It is more of a switcher and effects box than it is an editor.
I think Vegas is a better editing program, and the quality
is fine. It is only software though, so it can't be directly
compared to the toaster.
David
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