Korg Switch KF4 User Manual

EasyStart  
krossfour Main Features  
4 channel video mixer with DJ mixer feel and control  
4 composite inputs and 1 S-Video input, all with Time Based Correction to ensure the highest  
quality picture  
1 composite and 1 S-Video Main output  
1 composite Monitor output allows the performer to “cue up” video sources before mixing  
Hold button allows freezing of the video for either of the 2 channels  
DJ style cross-fader with 4 adjustable fader curves  
Fade to Black and Fade to White modes  
Chroma key function rejects blue and allows the other channel to pass through in place of it  
Luma key function rejects black, gray or white, and allows the other channel to pass through in  
place of it  
Clearly laid out and illuminated front panel makes it perfect for low light and club environments  
EasyStart CONTENTS  
Connections and Setup  
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2
3
3
3
3
3
4
4
5
Selecting an Input for a Channel  
Selecting a Source to Monitor  
Holding or Freezing a Source  
Adjusting and Using the Cross-fader Curves  
Fading to Black or White  
Using the Chroma Key Function  
Using the Luma Key Function  
Combining Features and Functions  
Suggested setup for krossfour and entrancer  
 
krossfour EasyStart  
Adjusting and Using the Cross-fader Curves  
The krossfour is the first video mixer to incorporate a DJ mixer style cross-fader. This cross-  
fader features four different fader curves that can be adjusted by a switch located in the left  
area of the front panel…  
From the left…  
Curve 1 – Allows for smooth transitions between channels, and begins blending sources  
from the instant you move the cross-fader.  
Curve 2 – Mix fades to black at the center position of the cross-fader, and then fades the  
second channel in.  
Curve 3 – Allows for smooth transition between channels 1 and 2, but doesn’t begin the  
blend until the cross-fader has reached the center position.  
Curve 4 – This curve can be used for abrupt switching and transform-type effects between  
the channels without fade-ins or fade-outs.  
Fading to Black or White  
The krossfour allows you to fade a source to a black or white screen…  
Fade to Black:  
1. Move the mode switch located on the front panel to position 1, labeled B.  
2. Select your video source for channel 2, and move the cross-fader to the far-right position.  
3. For channel 1, press any of the input select buttons twice so that the red light blinks.  
4. Move the cross-fader to the left, and the video source on channel 2 will fade to a black screen.  
Fade to White:  
1. Move the mode switch located on the front panel to position 2, labeled W.  
2. Select your video source for channel 2, and move the cross-fader to the far-right position.  
3. For channel 1, press any of the input select buttons twice so that the red light blinks.  
4. Move the cross-fader to the left, and the video source on channel 2 will fade to a white screen.  
Using the Chroma Key Function  
The Chroma key function allows the krossfour to ignore blue in a video source, and allows  
the second channel to pass through in the blue areas…  
1. Select two different input sources for channels 1 and 2 - make sure that the channel 2 source has blue in it.  
2. Move the cross-fader to the far-right position.  
3. Move the mode switch located on the front panel, to position 3, labeled C-K.  
4. Using the fine-tune knob located on the front panel, eliminate or key out blue from the channel two source.  
You will see the image from channel 1 passing through, but only where blue used to be.  
3
 
krossfour EasyStart  
Using the Luma Key Function  
The Luma key function allows the krossfour to ignore black, white, or grays in a video  
source, and allows the second channel to pass through in the black, white or gray areas…  
1. Select two different input sources for channels 1 and 2 - make sure that channel 2 source has black, white or  
gray in it.  
2. Move the cross-fader to the far-right position.  
3. Move the mode switch located on the front panel, to position 4, labeled L-K.  
4. Using the fine-tune knob located on the front panel, eliminate or key out black, white, or grays from the  
channel two source. You will see the image from channel 1 passing through, but only where black, white, or  
grays used to be.  
Combining Features and Functions  
The krossfour contains many unique features and functions. The real magic for a visual  
performance begins when these features and functions are combined. Here are some  
examples:  
1. Stutter Effect  
a. Assign same video source to both channels  
b. Put cross-fade curve to 4th position  
c. Set the mode switch to Black (B).  
d. Apply HOLD to channel B  
e. Move cross-fader back and forth over the cut off point creating a stutter effect.  
f. Release HOLD and repeat process (steps d-g) as video advances.  
g. Experiment using different fader curves.  
2. Background Effects using the Luma Key  
a. Select an empty input on channel A resulting in a blue background  
b. Select video source on channel B  
c. Set mode to Luma-Key (L-K)  
d. Move Fader all the way to channel B  
e. Rotate fine tune knob to key out light and dark info on channel B  
f. Blue background on channel A is revealed  
Variation 1 on this effect:  
a. Select empty input on channel A  
b. Set the mode switch to White (W).  
c. Press input button twice on channel A so that it begins blinking  
d. You should now see a white background  
e. Press HOLD on channel A  
f. Set the mode switch to Luma-Key (L-K)  
g. Move Fader all the way to channel B  
h. Rotate the fine tune knob to key out black, white, or grays on channel B  
i. White background on channel A is revealed  
Variation 2 on this effect:  
a. Follow above steps for either blue or white background  
b. Set cross-fade curve to position 2 (fade to background)  
c. Move cross-fader to middle  
d. Adjust fine tune knob change value of keyed out colors  
4
 
krossfour EasyStart  
Suggested setup using the krossfour and entrancer:  
¾
¾
Connect the krossfour  
S-Video output to the  
entrancer S-Video  
input.  
Connect the entrancer  
S-Video or composite  
output to an external  
monitor or projector  
S-Video or composite  
input (use S-Video  
connection if  
available)  
¾
¾
Connect a DVD player  
to the krossfour  
composite input 2  
Connect a Video  
camera to the  
krossfour S-Video or  
composite input 1  
¾
Connect a laptop  
computer VGA output  
to a scan convertor  
and then to the  
krossfour composite  
input 3  
¾
Connect a video  
game’s composite  
output to the  
krossfour composite  
input 4  
5
 

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