Video editing involves both artistic and technical processes to compile and alter video footage into a new version. The artistic process decides what elements to retain, delete, or combine to create an organized and visually pleasing end result. The technical process involves copying the various elements onto a single medium for viewing or distribution. There are two main types of video editing: linear editing which uses equipment like VCRs and edit controllers in a mechanical step-by-step process, and non-linear editing which utilizes computer software for a digital cut-and-paste approach. Both techniques can be combined in a video production process.

2. Video editing is both an Artistic and Technical process in which a
collection of video material (footage) is compiled and altered from its
original form to create a new version.
The artistic process of video editing consists of deciding what elements
to retain, delete, or combine from various sources so that they come
together in an organized, logical, and visually pleasing manner.
The technical process of video editing consists of copying the various
elements onto a single video tape (or CD Rom, or other media) for final
viewing or distribution.

3. Linear Editing - This process is basically mechanical in nature, in that
it employs the use of Camcorders, VCR's, Edit Controllers, Titlers, and
Mixers to perform the edit functions. This editing technique is performed
in linear steps, one cut at a time (or a series of programmed cuts) to its
conclusion.
Non-Linear Editing - Gaining in popularity quickly due to advances in
technology, pricing, and product availability, this method of video
editing utilizes the computer environment to aid in the editing process.
This process is almost entirely digital and employs no mechanical
functions except for the input of the video sources and its final output to
Tape or CD. Editing in this environment is essentially is a visual Cut-
and-Paste method.
NOTE: Linear and Non-Linear video editing techniques be
combined, and often are, within the same video production and will be
discussed later.

4. Linear Editing consists of three main categories:
1. In-Camera Editing: Video shots are structured in such a way that they are shot in order and of
correct length. This process does not require any additional equipment other than the Camcorder
itself, but requires good shooting and organizational skills at the time of the shoot.
2. Assemble Editing: Video shots are not structured in a specific order during shooting but are
rearranged and unneeded shots deleted at the time of transferring (copying). This process requires
at the least, a Camcorder and VCR. the original footage remains intact, but the rearranged footage
is transfered to a new tape. Each scene or cut is "assembled" on a blank tape either one-at-a-time
or in a sequence.
There are two types of Assemble Editing:
A Roll--Editing from a single source, with the option of adding an effect, such as titles or
transitioning from a frozen image the start of the next cut or scene.
A/B Roll--Editing from a minimum of two source VCR's or Camcorders and recording to a third
VCR. This technique requires a Video Mixer and/ or Edit Controller to provide smooth transitions
between the sources. Also, the sources must be electronically "Sync'd" together so that the record
signals are stable. The use of a Time Base Corrector or Digital Frame Synchronizer is necessary for
the success of this technique.
3. Insert Editing: New material is recorded over existing footage. This technique can be used
during the original shooting process or during a later editing process. Since the inserted footage is
placed over the unwanted footage some of the original footage is erased.

5. Titles on Glass--Painting titles on glass and shooting the scene
through the glass, enabling the titles to appear on the video.
Titles on Cardboard, Paper, or other Opaque Media --Painting
titles on opaque media and recording the pages on videotape and
inserting or assembling the title between scenes, previously
shot, during the editing process.
Electronic or Computer Titling --Creating titles on a Character
Generator or Computer and either superimposing them over the video
(electronically) as in the glass process, or inserting the titles between
scenes. Examples of electronic titlers include products from Videonics -
Focus Enhancements, and Sima.
NOTE: Some Camcorders have a limited ability to generate and
superimpose titles over video during the shooting process.

6. The primary function of a Video Mixer is to enable one to perform
transitions in the A/B Roll editing process. Transitions such as
cuts, wipes, dissolves, chromakey, and other effects can only be
performed using such a device. Video Mixers are available from
Videonics, Sima, and Datavideo.

7. Edit Controllers are devices that control all the mechanical processes
in a Linear Editing configuration. Edit controllers perform their
function by communicating with Camcorders and VCRs via an Edit
Protocol and to the Titlers, Mixers, and other devices via a GPI
Trigger (a simple on/off command switch that can be programmed in
specific sequences).
Some Edit controllers edit only one event (scene) at a time. Other
Edit controllers can be programmed to perform a series of edit
functions, with some able to edit an entire production from
beginning-to-end including executing all Titles and Transitions by
triggering the appropriate equipment. However, the user must still
program each command individually at the beginning, before
executing the process itself. Once again, Videonics, and Datavideo
carry a variety of Edit Controllers.

8. Control L (LANC) -- Two way communication protocol in which the Camcorder(s) are used as the
playback deck and a Sony HI8, SVHS, or MiniDV VCR is used as the Record Deck.
Sony, Canon, Yashica, Nikon, and Ricoh camcorders use this Protocol. Also, several edit controllers also use
this protocol.
Control M (Panasonic 5-Pin) -- Two way communication protocol in which either Camcorders or VCR's
can be used as either the playback or record decks. This Protocol is exclusive to the Panasonic AG product
line.
IR Control -- One way communication protocol in which the controller communicates with either a VCR or
Camcorder via IR remote control. Most controllers of this type can only perform one edit at a time is not
normally usable in an A/B Roll edit setup.
JVC RA Edit--Two way communication protocol in which a controller communicates with either a playback
VCR or Camcorder connected to a record VCR. The controller may be built-in to the camcorder or
VCR, eliminating the need for an external controller. This protocol is exclusive only to certain models of
JVC Camcorders and VCRS, and is not compatible with other brands.
JLIP (Joint Level Interface Protocol) -- A communication protocol developed by JVC. A sort of updated
version of RA Edit, this protocol enables JVC-equipped camcorders and VCR's to be controlled using a PC
(through the Serial Port) as the Edit controller.
GPI Trigger -- One way communication protocol in which the controller tells or "triggers" a Video Mixer or
Title Generator to perform a previously programmed function such as a transition, effect, or title.

9. There are two types of Sound Editing:
Sound Mixing -- This can be done in either the original shooting process or in editing. Two
or more sound sources can be connected to a sound mixer and then inputted into a
camcorder's external mike jack (note: not all camcorders have an external mike jack).
Two or more sound sources can be connected to a sound mixer, then inputted into the record
VCR's audio input jack(s). This enables the sound to be altered or added to during the
editing process.
Audio Dubbing -- This is the technique of adding audio to footage that is already edited
together or previously shot. The audio is added to the video tape without altering the
previously recorded video and, in some cases, without altering the previously recorded
audio.
In order to do either of these processes, the VCR must have an Audio Dub function already
built-in. In addition, in order to audio dub without affecting the previously recorded
audio, the recording VCR must be a HiFi Stereo VCR with a built-in Audio Dub function.
Audio Dubbing is usually activated by placing the VCR in the Play/Pause mode, then pressing
the Audio Dub function, then letting the VCR play the video while it records the audio.
Note: Audio Dubbing on HIFI consumer VCR's only allows for a monoraul Audio Dub - useful
for narration or effects.

10. The Home Computer as Editor:
The home computer as an aid to video editing has pushed the envelope even more in the area of video creativity.
Some of these computer editing tools give results that were attainable only in production houses a few years ago.
The basic concepts and rules of the video editing process are the same, but working in a digital environment allows
the editor more creative freedom at each step in the process, such as being able to preview and correct each edit
decision without having to go to tape or disk first. The video editing process, then becomes similar to putting
together a document or graphics presentation where the user cuts and pastes the segments together adding effects
and titles. Even audio editing is available. Once the video is finished it can be "dumped" back onto video tape and
then viewed or duplicated.
Computer Non-Linear Editing is not foolproof however. You must have the right combination of Ram, Hard Drive
Space, and Operating System. Often times there are hardware and software conflicts with other elements within
the computer, which can result in crashes. Outputting the finished video back to tape can have mixed results, such
as jumpy or skipped frames.
In addition, the home PC also has the ability to perform any one of the functions of the individual components in a
traditional Linear Editing setup. In other words, if you have a PC and don't have all the requirements to perform the
entire editing process, you can still use you computer simply as an edit controller, titler, or sound mixer with the
proper software. In fact, using a computer in a hybrid Linear Editing configuration is fairly standard in many
professional and amateur editing suites.
The three basic ways to connect a video source, such as a Camcorder or VCR to a computer are:
Video Capture Board --
Probably the most common way to integrate video with a computer. Video capture boards are bundled with
software for editing and other functions and are usually inserted into a computer PCI slot. These boards are usually
equipped with S-video or Composite video inputs. Many boards also have video outputs, to allow you to copy your
finished video back out to tape, but not all of them have outputs. If you need this capacity, read the specifications
and connections statement on the box carefully before you buy. Also, make sure you check the system
requirements for the board. Make sure your computer has the recommended requirements, not just the minimum.
By adhering to this, you computer will be less likely to crash during the editing process. Internal video cards can be
obtained from companies such as ATI and Pinnacle Systems.

11. External "Black Box" -- Functioning very much like a Video Capture Board, products such as
Dazzle Digital Video Creator, and Pinnacle Systems Studio MP10 enable the user to take the
video editing process away from external devices and controllers and place the entire creative
process within the computer environment. These are basically external "black boxes" that plug
into a computer's Parallel or USB port (eliminating the need for an internal video capture board)
and allows a camcorder or VCR to be more easily connected the computer.
IEEE-1394 (Firewire) --
With the advent of Digital Camcorders, a new breed of internal video capture/editing board has
arrived on the scene that allow a home PC to be upgraded to accommodate the Digital Video
editing process by adding a new port on the computer referred to as an IEEE-1394 (Firewire/i-
link) connection. This port allows extremely fast download and upload speeds that are required
to do quality video editing within the PC environment. Once again, as with previous computer
video products, your PC must have the suggested requirements for the card to function
smoothly. Companies such as Pinnacle Systems, Datavideo, Digital Origin, Canopus, and many
others have introduced "Firewire Cards" for both PC and MAC computers.
In order to integrate the camcorder and computer more efficiently, Sony has introduced a line of
home computers that are optimized for the Non-Linear editing process. Designed to work their
line of miniDV and Digital8 camcorders, these desktops can take the digital video signal straight
in (using IEEE-1394 connection) for editing and dump the completed video digitally back out to
the Camcorder, which then can copy the completed video onto a standard VCR. Other computer
manufacturers are also address this need, such as Compaq and Apple (G4 and I-Mac).

12. Taking computer-based Non-Linear editing a step further, Casablanca by
Draco, Screenplay by Applied Magic and Datavideo, are new Non-Linear
Editing products that look like a typical VCR at first glance, but are
sophisticated computers that are solely dedicated to the video editing
process (no Windows or other program conflicts!). All components (including
inputs and outputs) needed to edit your video are built in; just open the
box, plug in a TV monitor, go through the setup, plug in your VCR or
Camcorder with your footage, and away you go.

13. This has been a brief outline of the basic principles of video editing. There are many
points to consider when setting up you editing environment. Equipment
compatability is paramount. In the professional environment there are many
options, many of which are interchangable. In the consumer realm there are less
choices of equipment as well as compatability between equipment. If you want
smooth, easy edit control (if not using a computer) use all the same brand
equipment (Sony with Sony, JVC with JVC, etc...) Some companies, such as
Videonics, Sima, and Datavideo, do make cross brand editing equipment, but check
first before you buy.
When editing in the computer environment, make sure your PC or MAC always
meets the recommended (not the minimum) requirements for the hardware and
software to be used. Indeed the Non-Linear Computer environment is the future of
Video Editing, but there are still plenty of applications for good-old-fashioned tape-
to-tape editing, especially if you are editing a long-form video project and want to
keep your expenses down. Although larger computer hard drives are getting
cheaper and more plentiful, they still might not be the best way to edit your video.
The real key to being a successful video editor is time, patience, equipment that is
easy for you understand and work with, resourcefulness, and a good imagination.
You will be surprised how much a little imagination and resourcefulness can do --
remember, Video Editing is both a Technical Process and an Art.