a broadcast quality genlock in a 19" rack mount enclosure
composite, Y/C, RGB and Y/Cr/Cb modes
the function of the video input and output connectors (Keyer 1-3, 6× BNC, 2× mini-DIN) depend on the video mode selected on the front panel:
Keyer 1
Keyer 2
Keyer 3
CVBS/YC mode
CVBS
Y
C
RGB mode
G
R
B
Y/Cr/Cb mode
Y
Cr
Cb
composite, Y/C and RGBS outputs of the Amiga signal (5× BNC, 1× mini-DIN) - all are constantly available regardless of the selected video mode
the Y/C keyer BNC terminals are parallel with the 4 pin mini-DIN Y/C multipoles - both outputs should not be used simultaneously
key output (a standard non-composite waveform) for use with a video mixer (1× BNC)
reference input with loop connector (2× BNC)
must be provided with a stable accurate reference - direct videotape signals are not suitable
cross fade with external background signal
crossfade, key and fade to black via sliders on a separate remote control
background mode: colour zero is set to the overlay colour, video is seen through
foreground mode: the colour to be made transparent is controlled by a rotary switch
adjustable key colour, subcarrier and horizontal phase
can be used to encode the RGB output of a genlocked Harlequin graphics card, but it is not possible to obtain a signal mixed or keyed over a background video source using the VC3 internal keyers
software control via the parallel port
separate PAL and NTSC models
internal power supply
optional RGB-Link board
enables an external linear RGB signal to be processed the same way as the Amiga signal
input the RGB-Link board is via a DB25 connector which replaces the Amiga software control port - the Amiga computer control facility is lost
switching between Amiga and external RGB is provided by the manual/computer switch on the front panel
VC3C variant
provides all functions of the VC3 except for the 3 channels of keying
if fitted, the following ports are not available for use:
keyer inputs
Amiga control port
remote control port
VC3B variant
provides RGB, Sync and key outputs only
if fitted, the following ports are not available for use:
keyer inputs and outputs (3 channels)
PAL and Y/C outputs
Amiga control port
remote control port
if fitted, the following front panel controls are not available for use:
Y/C input - selectable by a jumper inside the ChromaKey's box
connects to the RGB port between the Amiga and the genlock or directly to a Video Toaster
disable switch (Genlock / Chroma) - in Genlock position the video signal is passed through unaffected
the Normal / Invert switch selects between blue background or subject-area dropout
the keyed chroma level is adjustable by the slider
gives Video Toaster users the choice between luma and chroma keying and is controlled completely from the Switcher
procedure of operating with the Toaster:
ChromaKey's video output goes into Toaster's Input 1 through a time base corrector
the background video to be keyed over is connected to Input 2
ChromaKey's key output is connected to either Input 3 or 4
the switches and the slider is bypassed, the key effect is controlled by the Switcher
in the Switcher set the Program Bus to Video 1, the Preview Bus to Video 2, and the Overlay Bus to Input 3 or 4 (where ChromaKey's key out is connected)
select the Art Card effect and set the luminance key to white
use the T-Bar to reveal the video background
external power supply
jumper settings
J1 ON OFF
J2 OFF ON
- key color - red (R-Y) - blue (B-Y)
J3 1-2 2-3
- key selection - chrominance part of Y/C - derived from composite
both can be installed internally or externally, to the internal or external DB25 parallel port
the Digi-Gen has to be connected to the Amiga's parallel and joystick ports
when the the digitizer is installed internally, the external DB25 port acts as a parallel passthrough port - the DI/PR switch selects between the digitizer and passthrough
when installed outside, the digitizer is fed with composite video signal through the DI output connector (RCA)
switchable dual composite input - software switching between two separate composite input sources for fast cuts between video - or a single high quality Y/C input
Composite to Y/C transcoder provides simultaneous composite, Y/C, and RGB outputs
the RGB output can be switched to provide YUV output for professional recording equipment
realtime ProcAmp controls allow adjustment of hue, saturation, brightness, contrast, sharpness, filtering, gain, and more
SECAM to PAL conversion in VCR quality
keyer modes include Amiga only, external video only, overlay, inverse overlay, and control of Amiga ECS and AGA special effects
audio processor allows software switching and mixing control of two separate monaural audio sources, with full control over volume, treble, and bass
can operate as an adjustable electronic RGB color splitter for direct use with the NewTek Digi-View or other slow-scan video digitizers
works with the Display Enhancer and FlickerFreeVideo boards for simultaneous genlocked video and deinterlaced Amiga graphics output
complete software control with full ARexx and CLI interfaces
automatic input recognition with priority for the Y/C signal
color, contrast and luminance knobs for the source video signal
independent fading of the computer and video image
fade to black
manual fading - the faders serve to set the degree of blending
automatic fading - the faders serve to set the fading time between 0.2 - 20 seconds
RGB monitor switch: switches the display between genlock and computer picture without affecting the video outputs
keying active switch: allows imposing the computer picture over a static video picture - when inactive the fader can be used to dissolve between full computer and video picture
keying invert switch: when inactive, video is projected onto the computer image where color 0 is - when active, video is shown at positions other than color 0
alpha overlay switch: allows semi-transparent colors or anti-aliasing
built in black burst generator for recording the computer image without receiving a video source
VITC timecode support
all functions can be controlled by software through the serial port
integrated ARexx port
standby mode - when the genlock is not needed it is possible to work on the computer without disconnecting it - all Amiga screen modes are passed through to the RGB monitor
for operation with the A3000's video enhancer, the "A3000" jumper has to be set on the Neptun's circuit board
takes power from the RGB port, but can use an external power supply too
automatic input recognition with priority for the Y/C signal
color, contrast and luminance knobs for the source video signal
RGB monitor switch: switches the display between genlock and computer picture - does not affect the video outputs
keying active switch: allows imposing the computer picture over a static video picture - when inactive the fader can be used to dissolve between full computer and video picture
keying invert switch: when inactive, video is projected onto the computer image where color 0 is - when active, video is shown at positions other than color 0
internal blackburst generator - when no video source is connected, the genlock still can be used to record the computer image
standby mode - when the genlock is not needed it is possible to work on the computer without disconnecting it - all Amiga screen modes are passed through to the RGB monitor
for operation with the A3000's video enhancer, the "A3000" jumper has to be set on the Pluto's circuit board
takes power from the RGB port, but can use an external power supply too
automatic input recognition with priority for the Y/C signal
adjustable color, contrast, luminance and white level (separate red, green, blue) of the source video signal
adjustable black level of the computer image
picture parameters can be stored and recalled
independent fading of the computer and video image
fade to black
manual fading - the faders serve to set the degree of blending
automatic fading - the faders serve to set the fading time between 0.2 - 20 seconds
RGB monitor switch: switches the display between genlock and computer picture without affecting the video outputs
bluebox keying switch: turns on Chroma and Luma keying - finds a specific color with a certain tolerance (to compensate for noise) in the video picture for keying
keying invert switch: when inactive, video is projected onto the computer image where color 0 is - when active, video is shown at positions other than color 0
alpha overlay switch: allows semi-transparent colors or anti-aliasing
built in black burst generator for recording the computer image without receiving a video source
built in test image generator for optimized adjustment of all image parameters
sound mixer
two stereo inputs (4× RCA)
microphone input (1× 3.5 mm jack)
stereo output (2× RCA)
microphone volume adjustment knob
faders control the volume of the two audio channels
during automatic fading the video and audio faders can be synchronized
adjustable treble, bass and gain for all three audio sources independently
notes
LCD display for picture and audio parameters and values
VITC timecode support
all functions can be controlled through the serial port
integrated ARexx port
standby mode - when the genlock is not needed it is possible to work on the computer without disconnecting it - all Amiga screen modes are passed through to the RGB monitor
for operation with the A3000's video enhancer, the "A3000" jumper has to be set on the Sirius' circuit board
a professional video switching system featuring luma-keying, genlocking, local 24 bit colour generation, video fading/wiping and stereo audio mixer
four channels: composite video in with passthrough, externally synchronized RGB in, Amiga RGB in, and the internal colour generator for background color
hue, saturation and contrast control is provided on the front panel
connects to any Amiga (including the A1000) through the RGB port
controlled through the serial port
RGB out port (DB23, for Amiga graphics)
stereo audio out (2× RCA)
two stereo audio input channels (4× RCA)
composite video: 1× in, 2× out, 1× passthrough (BNC)
RGB in (3× BNC)
does not require time-base corrected inputs
available in PAL and NTSC
features
genlocking:
overlay Amiga graphics onto any video source or onto a solid one-colour screen
four genlock modes: foreground, inverted, mixed and encoded
notch filter and fade capability gives a wide range of genlocking options and effects
the Video Blender software does not need to be active during the genlocking process
fading:
fade between any two sources
smooth fading from 0 to 10 seconds in increments as small as 40 ms
supported in all genlock modes, including luma-keying
fully programmable and sequenceable with other events
mixing:
mix any two video sources for ghost, double exposure or tinting effects
mix delay can be set from 0 to 10 seconds in increments as small as 40 ms
switching:
switch between any two of Video Blenders four channels
switching is instantaneous and flicker-free, and is fully programmable and sequenceable with other events
keying:
key between any two of Video Blenders four channels for effects such as weather map, split screen video, any size or shape picture-in-picture, invisible man
all effects have sharp, crisp edges with notch filter option
key on 256 shades of gray from black to white
fully programmable and sequenceable with other events
wiping:
pixel level control of wiping between any two sources
every aspect of each wipe is adjustable: size, direction, speed, repetition, delay, rows, columns and more
with Video Scriptor (wipe sequencer and control tool) any IFF animation can be used as a wipe in addition to the algorithmic wipes
MixMaster custom wipe-paint software for easy creation of spectacular IFF wipes
fully programmable and sequenceable with other events
stereo audio:
Video Blender's two stereo input channels can be switched, mixed or faded
fade times are adjustable from 0 to 10 seconds in increments as small as 40 ms
the mixed audio output may be synchronized to video events
attenuation control knobs on the front panel allow the matching of stereo input levels
programming and sequencing:
every setting and feature may be saved as a Video Blender event
events may consist of a series of wipes, fades, mixes, etc.
in addition titling sequences, external tasks and other software may be part of an event
multiple events may be sequenced and saved in video sessions
24 bit colour generator for background screens and colour transitions
black burst out, synched with composite video in
key in for chroma-keying and other effects
GPI trigger allows the sequencing of Video Blender with other studio equipment
loop through for previewing composite video output without sacrificing a video channel