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The V-4 is a 4-channel Video Mixer made for portable or fixed installation use. It is ideal for use in nightclubs, places of worship, theatres, and other live performances. The compact design of the V-4 gives you the freedom to make your video sources come alive. The V-4 is a part of the EDIROL SD video mixer line. See the SD Mixer Comparison.
For cutting-edge Multimedia artists, the V-4 offers V-LINK, an exciting new feature from Edirol and Roland that provides for realtime performance control over digital video, for the ultimate in creative expression. V-LINK allows the user to trigger clips, perform video effects and transitions in real-time when connected with the Edirol PR-80 (sold separately). The V-4 video mixer also has MIDI in/out/through, for real-time or sequenced control of video sources with effects and transitions.
Features
- Video Mixer / Switcher with 4ch input
- Independent 2-channel TBC / Frame Synchronizer
- Independent 2-channel Digital Effects
- Professional quality T-Bar Video Fader
- Easy Operation
- Beat Synchronization between Audio and Video
- Over 200 Transition Effects
Video Mixer / Switcher with 4-ch input
V-4 is
equipped with four composite (RCA Pin) inputs plus two S-video (Y/C)
inputs. V-4 offers scene transition of the four video sources with
Dissolve, Wipes (with a total of about 200 variations), and Switching.
The V-4 outputs the same video source to all the three jacks (Composite
x 2, S-video x 1), for simultaneous monitoring and displaying, without
resorting to external distribution boxes.
| Over 200 Transition Effects | See Listings Here | ||||||||||
|
Professional Video Quality
The input video
sources are processed completely in the digital domain, and give
professional video quality (13.5MHz, 8-bit, 4:2:2, DV quality). Ideal
for use on large screens, and because the V-4 internal processing is
digital there is no quality loss.
Independent 2-channel TBC / Frame Synchronizer
The input sources go through independent 2-channel TBC (Time Base
Correction) circuits to correct the time code, independent 2-channel
Frame Synchronizers are also applied to the two sources at this stage.
These processes enable smooth transitions and Dissolves, and ensuring
stable images all the time.
Independent 2-channel Digital Effects
V-4
features independent 2-channel Video effects that include a rich
selection of digital effects (refer to spec sheet). The V-4 also
features composition effects such as Picture-in-Picture, Chroma-key,
and Luminance-key. The effects are recallable by a single button press.
Professional-use T-Bar Video Fader
Professional-use T-Bar cross fades for quick and intuitive operation. A
V-4 innovation is that you chose to attach the fade however you like,
either, vertically as standard for video mixer, or horizontally as a DJ
mixer fader. The fader resolution has over 100 steps and offers
extremely smooth transitions. Its metal body as well as its fader is
strong and durable to be used in your active performance.
Easy Operation
V-4 is designed for its functions and operations to be clear from
the front panel. Because it is simple to use its easy-to-use operation
will enhance your realtime performance. Most of the V-4 functions can
be selected and controlled without resorting to the manual.

On Screen Menu
Preview Function and On-Screen Menu
The preview
function is controlled by the source selection button, and enables the
user to monitor each of the input sources 1-4 or the output source
before transition, to a single preview monitor, no more multiple
preview monitors! You can control V-4's major functions (Ex. Effect
selection, MIDI input setting, etc.) from the dedicated preview screen
using the convenient On-Screen Menu. This is separate from the output
to the main outs, so you can view it anytime you want.
Convenient User Memory Function
V-4's User
memory function allows you to memorize and conveniently recall the
panel settings, such as effect assignment to each button. The memory is
saved even while the power is off, so you can store the frequently-used
setting. Maximum eight configurations.

Back Panel
Synchronization between Audio and Video/Connection with MIDI Equipment
The V-4 features video transition/effects that can be synchronized with
MIDI. The BPM (beat per minute) of transition/effects can be made to
follow the beat of a music track by hitting the tap button (TAP
function). The functions of V-4 can also be controlled via MIDI
equipment such as a MIDI keyboard controller. If you have the optional
PR-80, various visual performances become even more creative by mixing
the DV-7PR's numerous video clips with the V-4's visual effects, all
with realtime transitions and composition.
Live Production/Church
Here
we have 4 inputs - 2 live cameras, text, still or video input coming
from a laptop and all high quality video playback coming from the PR-80.
By using a luminance key with the text input (e.g., PowerPoint,
MediaShout, etc.) from the computer, you can overlay song lyrics,notes
or messages over any of your other 3 inputs. Of the three outputs, 2
are being sent to the house projectors and the third one is recording
the event to a VCR. At all times you can independently monitor your
inputs and effects via the preview monitor. Note: S-video output or RGB-to-video scan converter is required to connect a computer to the V-4.
| Technical Specifications for Edirol V-4 |
||
| Video Format | NTSC or PAL (ITU601) | |
| Video Sampling Rate | 13.5MHz, 4:2:2(Y:B-Y:R-Y), 8-bit, Flame synchronizer x 2 | |
| Video Input | S-Video: 4-pin mini DIN type Video (composite): RCA pin type x 4 (inputs 1-4; however if S-Video is simultaneously input to 1/2, S-Video takes priority) |
|
| Video Output | S-Video: 4-pin mini DIN type x 1 Video (composite): RCA pin type x 2 |
|
| Output level and Impedance | S-Video: 1Vp-p, 75ohm Video (composite): 1Vp-p, 75ohm Chrominance signal: 0.286mVp-p, 75ohm |
|
| Transition Effects | Mix, Wipe (4 types), Picture-in-Picture (4 types) | |
| Compositing Effects | Superimpose (remove black) |
|
| Control | MIDI (in, out), V-LINK | |
| Power Supply | Dedicated AC Adaptor | |
| Current Consumption | 1500mA | |
| Size and Weight | ||
| Width | 209 mm | 8-1/4 inches |
| Depth | 282 mm | 11-1/8 inches |
| Height | 77 mm | 3-1/16 inches |
| Weight | 1.8 kg | 4 lbs. |
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