A simple Colorizing effect can be handy and can add to your live show. This tutorial will show you how to do this on a Ross Carbonite switcher, however, if you apply the basic principals you should be able to achieve this on any switcher.
Select the key you want to use for your effect, This will be a 2 key effect
Select the first keyer, select self key and route it to black, then turn the clip and gain settings so that it doesn’t allow video from the background to come through
Select the second key
Make sure the key is selected to be either a Self or Auto key
Turn the key on or select key the key you are working on in your transition area to preview
Route BG (Background matte generator) to the key
Select the color you want to colorize your video using the hue, Saturation, and luminance knobs
Ex: For Black and White, make luminatece 100% and Saturation 0%
Now we will want to do a split key, that is give the key a different Alpha channel,
To do a split key,
Press and hold the Auto Select or Self Key, depending on the key type you are splitting, then press a camera as the source you want to be your alpha channel, or use the Alpha knob to select a camera source to be your Alpha
Press the Alpha knob to accept the new alpha (if you use the menu).
Now, let’s say you want to be able to mix between sources and keep them black and white. You can do this 1 of 2 ways.
First: If you are using a 2 MLE switcher, use a Key on Program/ Preview to do the effect and assign the alpha to MLE 1
Second: If you are only using a 1 MLE you may have to do some wiring. Route your clean feed out using an aux and either wire it back into an input of the switcher or use a router to do this depending on your system design. Make sure your clean feed is set to before key 1 (Menu>System>Clean). Map your alpha channel to the input of your clean feed input re-entering the switcher.
For quick access, store this as a memory to go to quickly during a show.
Here is an example of how B&W can add to the feel of a song