Monitor Output - Korg Krossfour KF4 Manuel D'utilisation

Thank you for purchasing the krossfour 4-channel video mixer & switcher. To enjoy long and trouble-free
use of this product, please read this manual carefully and operate this unit only as directed.
Features
Two-channel video mixer with four source inputs
Up to four video sources can be connected to the krossfour, and any of the four sources may be
individually assigned to each of the two mixer channels. Simple, intuitive design makes it easy
to carry out switching and mixing for a wide variety of applications: video jockeying, video per-
formance, video editing, and more.
Backlit Crossfader
The crossfader control lets you dynamically adjust the mix between the two video channels in
realtime. By selecting different fader curves, you can change the characteristics of the fader and
access different types of mixing techniques.

Monitor Output

The Monitor output allows you to preview or "audition" any of the video sources, without af-
fecting the mixer output - sort of like headphones for the eyes.
Chroma-key or "Blue-Screen" effects
Chroma-key is a type of compositing effect that removes (or "keys-out") a specific color from
a video image, allowing a background video source to show through. Spaceships whizzing past
planets, superheroes flying through the air, or the local forecaster standing in front of a chang-
ing weather map are examples of Chroma-key effects.
Luma-key effects
Like Chroma-key, Luminance-key (or "Luma-key") is also a compositing effect that removes
a specific part of a video image, allowing a background video image to show through. Luma-
key uses a brightness value (Black or White) to specify the keyed-out area, instead of a particu-
lar color value. For example, white titles prepared on a black background can be made to float
on top of any video image by using Luma-key to remove the black areas from the title shot.
Internal Time Base Corrector (TBC)
Time Base Correction is needed to provide stable synchronization when working with multiple
video sources. TBC digital processing provides excellent synchronization and ensures stable im-
aging when mixing or switching signals from various DVD players, VCR, video cameras, PCs
with video output capability, and other such devices.
The switching of input and monitor sources is not image synchronized. This type of switching may cause dis-
turbances in the image.
3