BACKGROUND - background color generation, supporting 8 colors (B only)
expansion can be used as genlock with the transition effects mentioned above
time base correction function (improve image quality of a video source)
limited video quality when using chroma key on composite video sources
image disturbance when switching signal sources or changing effects, limiting the usefulness in a professional setup
all adjustments, functions, and effects can be performed manually or digitally programmed via the RS232 interface using ARexx commands (additional software required)
freeze frame of channel B can be transferred to Amiga (framegrabber function), this requires additional software and takes approx. 2 minutes per frame
size: 343×200×60 mm
illuminated LCD screen (2×16 characters)
EPROM for retaining all settings
external power supply, device requires 15-18V, 1A
expansion was delivered with a demonstration VHS cassette
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:
external genlock with digital signal processor and RGB splitter for consumers and semi-professional use, connected to the RGB and joystick port of the Amiga
phase-locked chroma subcarrier
integrated RGB splitter to enhance video quality and video digitizer support
allows color correction via controls at the front panel - color, contrast and brightness
supported effects: fading, superimposing, inverse superimposing - controllable via controls at the front panel, effects can be run automatically
input connectors:
1× RCA Composite Video In
1× Mini DIN Y/C (S-VHS) Video In
1× 9 pin RGB Amiga Video Input
1× Joystick Input
connection to Amiga is done via shielded RGB cable with a metal box containing an oscillator board
output connectors:
1× RCA Composite Video Out
1× Mini DIN Y/C (S-VHS) Video Out
1× 9 pin RGB Bypass to attach a monitor
1× RCA Composite Digitizer Video Out (RGB splitter output)
outputs are buffered and can be used simultaneously
digitizer output allows connecting a slow scan video digitizer that digitizes in 3 passes (red, green and blue) - 3 LEDs display the current channel, the channel switching is done automatically by the software via joystick port
switch to disable interlace mode - the image is shown flicker-free with reduced resolution
'Professional' version provides an additional RGB Bypass output for a monitor, a special synchronization circuit on the oscillator board for increased image stability, and two automatic wipe effects
measured composite video bandwidth is 2.5 MHz, measured Y/C bandwidth 4 MHz
for the 'Professional' version, the bandwidth is increased to 3.5 MHz (composite) resp. 4.5 MHz (Y/C)
limitations in video performance: black level does not reach 0.3V, blue and yellow levels are too high
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
larger version of the ColourPic with additional memory, interfaces and software capabilities
digitises video inputs in 64000 colors in 1/50th second per frame resp. 1/25th second for interlace modes (realtime)
supports lo-res, interlace and hi-res resolutions
comes standard with 512kB internal framebuffer
internal memory can be extended up to 1 MB of CMOS SRAM memory (32k×8, ≤120ns) to support hires interlace overscan images and longer animations
outputs files in HAM, EHB, 4 - 32 color or monochrome (16 grayscales)
PAL and NTSC versions available
framestore can be used to display images in 64k colors on external monitors or video equipment by uploading them to the ColourPic Plus (e.g. 24 bit images)
brightness, contrast, saturation and NTSC hue controls - the latter doesn't work in PAL models
video input connectors, selected by rotary knob at the rear
1× composite (BNC) video input
1× Y/C input connector (4 pin mini-DIN)
1× Amiga RGB
output connectors:
RGB monitor pass-through and composite video output
1× RCA connector for UHF TV output
RGB output is used for monitor pass-through, UHF and Composite for TV output of captured frames
connects via parallel port to the Amiga
internal power supply
delivered with standard ColourPic software and with Cabaret Plus software, which provides the following functions:
24 bit capable, support hi-res and interlace modes
overscan support
software control of image parameters (e.g. brightness, color and color balance)
image flip
image filters
extra image filters like Uniform, Kuwahara, Posterize, Median and Gamma
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
provides multiple video functions in one package: genlock, title generator, video mixer and video digitizer
includes the NewTek Digi-View Gold for the digitizing function, an automatic RGB splitter enhances the image quality
brightness, contrast and color saturation controls of video input
Amiga signal can be adjusted in brightness and contrast, no color adaptation possible
provides different keying and effect options
supports "hard" 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
three wipe effect patterns (horizontal, vertical, circular), also in combination, controllable by WIPE slider
effects only apply to Amiga signal
fade-in of Amiga signal possible, controllable by MIX slider
both WIPE and MIX effects can also be time programmed (up to 10s) and started by button press
cost reduced variant of VES One that omits the digitizing function and doesn't include the title generator software Videopage
provides multiple video functions in one package: genlock, video mixer and RGB splitter
brightness, contrast and color saturation controls of video input
Amiga signal can be adjusted in brightness and contrast, no color adaptation possible
provides different keying and effect options
supports "hard" 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
three wipe effect patterns (horizontal, vertical, circular), also in combination, controllable by WIPE slider
effects only apply to Amiga signal
fade-in of Amiga signal possible, controllable by MIX slider
both WIPE and MIX effects can also be time programmed (up to 10s) and started by button press
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
2× 4 pin mini DIN Y/C video (S-VHS), 1 Vpp, 75 ohm
2× RCA composite video, 1 Vpp, 75 ohm
1× 23 pin RGB Amiga signal
1× 9 pin D-SUB RS-232 control interface
output connectors:
1× 4 pin mini DIN Y/C video (S-VHS), 1 Vpp, 75 ohm
1× RCA composite Video, 1 Vpp, 75 ohm
1× 23 pin RGB monitor signal
sampling 4:2:2 compliant with CCIR601, 768 pixels per line
signal encoding: PAL-B/G, 4.43 MHz, 50 Hz, SQP
expansion is equipped with a membrane keyboard
three slide potentiometers to control effects, mix and fade
brightness, contrast, and color can be adjusted separately for the computer and for the video inputs
size: 343×200×60 mm
illuminated LCD screen
EPROM for retaining the genlock settings
effects:
ALPHA channel (transparent graphics)
CHROMA KEY (blue box) on both the computer and video channels
LUMA KEY on either the computer or video channel
ZERO DETECT (placing the video image where the computer background color would be)
INVERT CHROM (negative color)
INVERT LUM (negative luminance)
BLACK (instant fade to black for computer or video)
PREFILTER (filter to enhance details)
VCR (switching the TV/VCR time constant)
CORRECT SWITCH (color correction)
OFFSET (horizontal shift of the computer image relative to the video)
standby function, useful with multisync monitors
all adjustments, functions, and effects can be performed manually or digitally programmed via the RS232 interface using ARexx commands (additional software required)
on/off button at the back side to enable the composite video connectors and genlock function - when off, the Amiga video signal still is passed-through to the monitor port
1 Vpp composite video signal on 75 ohms for both input and output
bandwidth of 6 MHz +/- 3 db
three-way switch at the front plate selects the Genlock function: only computer signal, only the composite input video signal, or both signals mixed together at the output
fader knob at the front panel to control the level of Amiga signal
power is supplied by Amiga
sturdy metal box, size: 18 × 4 × 15 cm
Videogenlock MK2+
the updated 'Plus' version was only changed slightly in comparison to MK II
changes:
changes in the circuit for superimposing the computer signal onto the video signal
addition of a filter
the signal has been boosted to allow the use of longer cables
the functions on the 3-way switch have been changed to Super Impose function (controlled by fader), only the composite input video signal, and overlay of video signal and Amiga graphics