Tips T0008
Difference between software encoding
and hardware encoding
Software codecs:
Software FireWire cards are really just an interface
for bringing the DV video in and out of your computer.
They rely on software compression and the speed
and power of your computer to digitize and edit
the footage. The biggest advantage of software based
FireWire cards are how affordable they are. Another
advantage is that with computers getting more and
more powerful every day, software based systems
become faster and faster.
Hardware codecs:
These cards use the same DV chips used in your DV
cam to handle the DV data. They have both analog
and DV inputs and outputs. Your analog footage is
captured and compressed directly into DV in real-time.
You can create a timeline that includes both analog
and DV footage. Because these cards have analog
output (usually through a break out box) you can
view your video on a video monitor while you edit.
This makes the actual editing process much easier
and faster.
Which is better, hardware or software codec?
One thing to keep in mind is that "hard"
vs. "soft" doesn't matter when it comes
to video quality, both give excellent result when
working properly.
Speaking of speed, in early 1998, various vendors
claimed a 25% or 30% speed advantage of hard codecs
over soft codecs. Too much depends on other factors,
like the speed of the computer's CPU, bus and bus
interface chipset, to decisively say that one codec
will be faster than the other in effects rendering.
As CPUs and buses speed up over time, the soft codecs
have taken the lead in speed for rendering operations.
However, hardware codes do have some advantages
sometimes depending on your requirements. Hardware
codec systems usually come with breakout boxes that
include analog (composite, Y/C, or even component)
connections as well as 1394 connections. You can
connect up any VTR format with analog I/O to the
box and capture it in real-time or output to it
in real-time.
One of the very cool features that many hardware
based DV cards now have is real-time features such
as transitions, FX, filters, titling and more. Real-Time
means you do not have to render, these effects play
directly from the timeline. Not everything is in
real-time with these cards. Each real-time card
comes with its own special selection of real-time
features.
Most of the hardware based DV cards also support
MPEG2. MPEG2, like DV, is 720 x 480 for NTSC, 720
x 576 for PAL. The big advantage of MPEG2 is that
you can lower the data rate and still maintain close
to DV quality. MPEG2 compression is what is used
by DVD. So these cards usually include DVD authoring
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Tips T0007
How's the quality of DV?
The DV (MiniDV) spec is a 720x480 image size,
at roughly a 5:1 compression. More accurately,
it is compressed at a constant throughput of 3600
kilobytes per second which averages out to 5:1
compression
The images are crisp, bright and have excellent
depth and contrast. In general, it's acceptable
even in TV stations.
Best of all, the information is stored on the
video tape in digital form, so it can be copied
over and over without any loss.
DV in = DV out
This is what makes DV so great. When you capture
DV footage to your hard drive via FireWire, the
DV video on your hard drive is an exact digital
copy of the original footage. There is no loss.
When choosing a FireWire card, there is no video
quality debate regardless of what codec is used.
EDIT YOUR VIDEO THROUGH
SNAZZI!!!!!
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Tips T0006
Set up your PC to edit video
| Not long ago, editing
videos on a PC meant splurging more than $1000 on
video capture cards, not to mention buying high-end
SCSI hard drives and the fastest
PC you could afford. But now, for
$150 to $400 you can buy video capture hardware
that works with nearly any Pentium PC. Even better,
most capture systems these days plug right into
your PC's parallel port.
You then plug your camcorder's video
output cable into the capture device, connect
a few other cables, install the video editing
software that comes with the device, and you're
ready to create your own video spectacular.
Video capture devices come in various
flavors. The right one for you depends on what
you want to do with the video after you capture
it.
They're perfect for e-mailing photos
over the Net or incorporating video into presentations.
They use sophisticated technology to sharpen and
improve the quality of the images. Higher-end
products capture high-quality video for use on
Web pages or in more elaborate presentations.
But most people use video
capture devices to edit video, add titles and
fancy transitions, and record the finished product
onto videotape.
On the PC side, you'll need
at least a Pentium-133 machine and 16MB of memory
(32MB is preferable). You'll also need lots of
free hard disk space, since compressed, captured
video consumes about 2MB of storage space per
minute.
For best results, read all equipment
instructions carefully and spend plenty of time
experimenting and honing your editing skills.
1. Set up your parallel port
Video capture devices that hook
up to your printer port require maximum port performance.
Restart your PC, launch the BIOS setup utility
(details vary by PC maker), and find the setting
for the printer port; it's usually listed in the
BIOS setup menu under "Integrated Peripherals"
or some similar heading. Make sure that it's set
for Extended Capabilities Port or ECP.
Next, set up the video capture software.
Most video capture boxes require you to install
the software before you hook up the hardware.
Read your manual and follow the directions.
2. Identify the connections
You need to connect four devices:
PC, camcorder, video capture device and VCR. All
camcorders carry a standard video-out connector
-- a single RCA jack, usually yellow, that works
with a standard composite video cable. In most
instances, they include a pair of RCA jacks (one
red, one white), too, for audio out. Hi-8 camcorders
come
with an S-Video-out connector and cable, as well.
3. Hook up the hardware
Read your video capture box manual
carefully, or run the video tutorial on the software
installation CD-ROM (if one is included there).
You'll need fair amount of room to set everything
up. Here's a typical approach:
Turn off your PC, and connect the
video capture device to your PC's printer port
and the AC adapter to the box. Connect one end
of the main cable bundle that came with the box
to your PC's serial port, and plug the other end
into your camcorder's remote control jack. If
you're using your camcorder's IR control, position
the camera and the VCR next to each other, and
make sure that the IR transceiver on the cable
points toward both of them.
4. Calibrate your setup
Make sure that everything is hooked
up correctly. Most video capture packages use
a setup wizard to lead you through the necessary
steps.
5. Start producing video
Procedures for capturing,
editing, and writing the finished product to tape
vary by maker but are usually easy. Editing can
be a simple matter of dragging and dropping the
thumbnails into the order you want. When you're
done, the software sends the finished video to
a tape in the VCR.
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Tips T0005
Digital Video Editing
Number-1
Every cut must provide new information. Don't
make an edit unless something in the content compels
you to. And the new shot should reveal something
that was not evident in the previous shot.
Number-2
Don't neglect your soundtrack. If seeing believes,
then hearing is feeling. Although sound is literally
invisible, the details of your audio will affect
the impact of your scene in ways far beyond what
the pictures will. Good sound design is usually
the difference between a good film and a great
one.
Give Digital Video That 'Film Look'
Here's an affordable way to give your digital
flicks a Hollywood finish.
EDIT YOUR VIDEO THROUGH
SNAZZI!!!!!
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Tips T0004
Shooting Hints- Making A Movie
| Whenever you shoot,
try to tell a story. Think about shots that create
a beginning, middle, and end. Capture scenes that
say something, showing actions and reactions. If
you shoot with a story in mind, then at editing
time, you'll have plenty of material.
Most people tape lots of the
main subject, but then ignore the little incidentals
that help give the story richness and context.
Capture the audience's reactions. Cut to the audience
shots, rather than panning.
Set the stage by mixing wide shots that show the
location with tighter shots that show the action.
Change the point of view between shots -- shoot
from different angles. Change your shooting height,
too: Most camcorder shots are made from an adult's
eye level, but shooting from higher or lower elevations
adds interest. When recording children, drop down
to their eye level instead of always filming them
from above. Likewise, when the subject is a seated
adult (at a wedding reception, for instance, lower
the camera for a natural look.
In general, avoid motion while you are shooting
and when you do move, move slowly and in as smooth
a motion as you can. The zoom button is best used
to frame shots while the camcorder is paused:
Zooming as you shoot can make the audience seasick!
Use cuts to change vantage points. EDIT! EDIT!
Composition
When you compose a shot, use the "rule of
thirds." Imagine the frame divided into thirds
vertically and horizontally. Try to position the
main subject along those lines, instead of in
the exact center. Moving objects away from the
center gives the frame a more dynamic feel.
Light:
-
Your most important tool as a videographer is
light and one of the most common mistakes is relying
on existing light. While today's camcorders have
excellent low-light capabilities, the quality
of the image invariably goes down in lower light.
Try to shoot in strong light. Shoot near windows,
turn on all the lights, and consider setting up
your own lights.
A strong single light source creates deep shadows.
A secondary, diffused light or a reflector fills
the shadows.
Native sound.
The built-in microphone is very convenient but
has many inherent liabilities. Because it's far
from the subject, it records background noise
and the camcorder's motor, in addition to the
sound you want. Whenever possible, use an extension
microphone or a wireless mike, positioned near
the subject.
Shoot to edit: -
Whenever you start or stop the camcorder, try
to leave some "air" around the action:
Run the camcorder for a few seconds before the
action begins and for a few seconds after the
action is complete. This gives you room so that
when you edit scenes together, you have a little
extra footage to adjust the pacing of your final
production.
Speaking of pacing, adjust the length of your
shots, varying between long and short shots as
appropriate. A series of fast-paced shots might
be fine for a music video but most productions
would benefit from mixed shot lengths.
And above all: Practice! Editing and shooting
are complementary skills and the more you shoot
and the more you edit, the better your videos
will be!
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Tips T0003
Capturing in DV or in MPEG-1
/ MPEG-2 - Which is better?
When a beginner starts this hobby,
what he normally wants is
(1) to convert his videotapes to VCD and
(2) to do a little bit of simple video editing,
such as cut and paste.
Converting directly with a MPEG-1 and MPEG-2 capture
card will serve both purposes, i.e. you can directly
convert any video source to VCD, SVCD, or DVD
directly. If the video is 1 hour long then it
takes 1 hour to capture and about 8 minutes to
burn.
DV on the other hand require
you to capture as a DV.avi format which then need
to be transcoded to MPEG-1/2 for you to burn to
VCD, SVCD, or DVD. This is an additional step
and normally takes an additional 7 hours (depending
the system).
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Tips T0002
Can I record mini CD-R media on my
regular CD burner?
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To use mini
CD-R media with your CD-R or CD-RW drive, your firmware
and recording software must be compatible with the
smaller size media. Check with your drive's manufacturer
and your burning software provider to confirm that
your equipment is ready to get mini. |
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Tips T0001
For less problem with video capture
and video editing, maintain your computer in good
condition.
Delete unnecessary files from
your Windows/Temp and Internet Temp folders as
well as your recycle bin and also defrag your
hard disk constantly
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