V-4: Four-Channel Video Mixer with Effects
The compact video mixer that&0s full of features
The V-4 is a 4-channel Video Mixer made for portable or
fixed installation use. It is ideal to be used in nightclubs, places of
worship, theatres, & 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 Roland SD video mixer line.
For
cutting-edge Multimedia artists, the V-4 offers V-LINK, an exciting
feature from 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 & transitions in
real-time when connected with the 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 & transitions. The V-4 is a part of the
Roland SD video mixer line. See the SD Mixer Comparison. Main 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 & Video
Over 200 Transition Effects
Best Video Product for 2004.
2004 Review
The compact video mixer that&0s full of features
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), & Switching.
The V-4 outputs the same video source to all the three jacks (Composite x
2, S-video x 1), for simultaneous monitoring & displaying, without
resorting to external distribution boxes.
Over 200 Transition Effects
See Listings Here
Hard Edge Types
Luminance Types
Multi Border Types
Sliding Types
Soft Edge Types
Professional Video Quality
The input video sources are processed completely in the digital domain,
& give professional video quality (13.5 M Hz, 8-bit, 4:2:2, DV
quality). ideal to be used on large screens, & 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 & Dissolves, & 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 & 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 & offers
extremely smooth transitions. Its metal body as well as its fader is
strong & durable to be used in your active performance.
Easy Operation
V-4
is designed for its functions & 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 & controlled without resorting to the manual.
On Screen Menu
Preview Function & On-Screen Menu
The preview function is controlled by the source selection button, &
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&0s 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&0s User memory function means that you can memorize & 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.
Synchronization between Audio & 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&0s numerous video clips with the V-4&0s visual effects, all
with realtime transitions & composition.
Configuration Examples
Live Production/ Church
Here
we have 4 inputs
- 2 live cameras, text, still or video input coming
from a laptop & all high quality video playback coming from the PR-80.
By using a luminance key with the text input (e.g., Power Point,
Media Shout, 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 & 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.
Multi-Camera Live Event
In
this example we have 4 live cameras being mixed to 2 house projectors,
bringing image magnification (IMAG) to the room. We are also recording
the event to a VCR as well. In a non-IMAG setting (i.e., school,
courtroom, community TV) you would not send the output to projectors and
simply record the event. At all times you can independently monitor
your inputs & effects via the preview monitor.
Corporate Event
Often
at corporate or church events, the playback material is on different
media (VHS, DVD, mini DV, Betacam, etc.). In this example we have 4
inputs
- 1 live camera & 3 different playback devices. The V-4 makes
it easy to mix between material coming from a variety of sources. Of the
three outputs, only two are being used
- 1 is being sent to a lobby
plasma & 1 is being sent to the house projector.
At all times you can independently monitor your inputs & effects via the preview monitor.
This setup can be greatly simplified by using a
PR-80 to playback all video material as shown in Example 1 above.
VJ/ Club Setup
Having
instant access to video material along with transitions & effects is
the key to any visually stimulating display. In this example the VJ has
material playing on the 2 DVDs, the VCR as well as their PC. The V-4
allows the real-time manipulation & transitioning between all of these
inputs. The outputs are doing to the LCDs or plasma around the room or
in the private boxes as well as to projectors throughout the house. At
all times you can independently monitor your inputs & effects via the
preview monitor.
As in the previous example,
this setup can be greatly simplified by using a PR-80 to playback all
video material as shown in Example 1 above. Note: S-video output or RGB-to-video scan converter is required to connect a computer to the V-4.
Independent Multi-Camera Shoot with IMAG
This
example combines Example 1 & 2 above. It means that you can use & be
recording a 4 camera shoot via the first V-4 but also overlay text or
playback other video material via the second V-4 for room image
magnification (IMAG). This configuration means that you can keep shooting the
event (via your 4 cameras) independently of what is happening on the
house screens. For example, your house screens could go to black or
perhaps playback a clip (via the PR-80)
- but your cameras could still
be capturing audience or stage reaction. Conversely you can decide to
use your multi-camera feed from the first V-4 for IMAG. At the same
time, you can record the IMAG output via the 2nd V-4. At all times you
can independently monitor all inputs & effects via the preview
monitors.
Video Format
NTSC or PAL (ITU601)
Video Sampling Rate
13.5 M Hz, 4:2:2 (Y:B-Y:R-Y), 8-bit, Flame synchronizer x 2
Transition Effects
Hard Edge Wipe, Soft Edge Wipe, Multi-Border Wipe
Video Effects
Strobe, Still, Mirror, Multi, Shake
Compositing Effects
Picture-In-Picture. Chroma Key, Luminance Key
Video Input
S-Video:
4-pin mini DIN type x 2 (inputs 1 or 2) 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
Preview Out
Video (composite): RCA pin type x 1
Control
MIDI (in, out), V-LINK, BPM synch, TAP
Power Supply
Dedicated AC Adaptor
Current Consumption
1500m A
Included Items
AC Adaptor, Transition effect list, T-bar attachment screws x 4 pcs. (spares)
Size & Weight
Width
225 mm
8-7/8 inches
Depth
295 mm
11-5/8 inches
Height
105 mm
4-3/16 inches
Weight
2.3 kg
5 lbs. 2 oz.
* The specifications are subject to change without notice.