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Operation
How to perform transitions, using keys and key modifiers, memories and custom controls, as well as Media-Store operation.
Keying
Keying is the term used to describe when you insert (or electronically cut) portions of one scene into another, or place titles over background images. Keys are made up of two basic components, an alpha, that cuts the hole in the background video, and a fill, that fills the hole with different video.
Masks
To Box Mask a Key
Box masks can be adjusted for size, location, rotation, and multiplication.

Operation
How to perform transitions, using keys and key modifiers, memories and custom controls, as well as Media-Store operation.
- Audio and Video Processing
  Video and audio signals are processed and passed through the switcher in different ways, depending on how the switcher is being used or is set up. A better understanding of how the switcher is processing these signals help you to achieve the production you want.
- Video Sources
  The switcher has access to three basic types of video sources, external, internal, and follows.
- Video Layering
  How video is layered in the output of the switcher depends on how an ME is re-entered onto the other, and what keyers are on-air for the ME.
- Video Preview
  Video preview allows you to use an additional monitor to preview what the next shot is going to be.
- Matte Source
  Matte color backgrounds (BG) are color signals that can be applied to backgrounds and keys. Color selection is done either by picking a preset color, or by adjusted hue, saturation, and luminance to create a custom color.
- Copying
  You can copy the content of an ME or keyer to another ME or keyer.
- Transitions
  Transitions are used to change the background video and take keys on and off-air. A transition can include any combinations of background and keyers for an ME, MiniME™, or MultiScreen. The background and each keyer can be transitioned independently.
- Keying
  Keying is the term used to describe when you insert (or electronically cut) portions of one scene into another, or place titles over background images. Keys are made up of two basic components, an alpha, that cuts the hole in the background video, and a fill, that fills the hole with different video.
  - Self Keys
  - Auto Select Keys
  - UltraChrome Chroma Key
  - DVE Keys
  - Show Alpha
  - Masks
    - To Pattern Mask a Key
      Pattern masks can be adjusted for size, location, rotation, and multiplication.
    - To Box Mask a Key
      Box masks can be adjusted for size, location, rotation, and multiplication.
  - Split Keys
- Memory Functions
  A memory register is a snapshot of the current state of the switcher that can include one or multiple ME, MiniME™, MultiScreen, or chroma key outputs.
- Switcher Sets
  The switcher stores configuration and operation data in a number of registers that contain the individual entries for items such as memories or personality settings. These registers can be stored as a single archive file, or as a register set that contains all the individual register of that type; all memories for example. These files are stored into Sets on USB drive. Different Sets can be created for different shows or applications, allowing you to quickly locate and recall the switcher configurations.
- Media-Store
  The MediaManager interface to the Media-Store allows you to load stills, animations, or audio files from the USB drive and make them available across all MEs. Two channels of Media-Store with alpha, or four channels without alpha, are provided.
- Custom Controls
  Once programmed, a custom control (CC) can be played back by pressing a button. The custom control can be as simple as triggering an output GPI pulse, or as complex as recalling a specific memory register on an ME, performing a switcher transition, and selecting a group of keys.

To Box Mask a Key

Box masks can be adjusted for size, location, rotation, and multiplication.

Click Navigation Menu > Live Assist > MEs and select the ME and key that you want to set up.

Tip: You can use the same procedure for a MiniME™ or MultiScreen.
Click Mask > Box.
Click Mask Force to force the area inside the mask region to the foreground.
Click Mask Invert to invert the masked area with the unmasked area.
Set up the mask as required.
- Size — adjust the size of the mask region.
- Left Edge — adjust the position of the left edge of the mask region.
- Right Edge — adjust the position of the right edge of the mask region.
- Top Edge — adjust the position of the top edge of the mask region.
- Bottom Edge — adjust the position of the bottom edge of the mask region.
- X-Position — position the mask on the x-axis. This adjust both the left and right edges at the same time.
- Y-Position — position the mask on the y-axis. This adjusts both the top and bottom edges at the same time.
Tip: You can use the Positioner to adjust the size and position of the box mask.