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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.
DVE Keys

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, what keyers are on-air for the ME, and what order the keys are in.
- 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. 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 2 Chroma Key
  - DVE Keys
    - 2D DVE
      The 2D DVE keys support size, aspect, X/Y position, and crop along with the effects like advanced borders and lighting/shadow.
    - 3D DVE
      The 3D DVE keys support size, aspect, X/Y/Z position, crop, and rotation along with the addition of effects like simple borders.
  - DVE Key Combiner
    Combine two channels from the same 2D or 3D DVE keyer to make independent keys that can be layered or intersected.
  - Show Alpha
  - Masks
  - 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™, or scenes. Up to 100 memory registers per ME, MiniME™, or scene can be stored and recalled on the switcher. Each of these memory registers can store as little as the information of one ME, or as much as the current state of the entire switcher, including all ME, MiniME™, scenes, Aux Buses, and DVE settings.
- 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. Each ME, MiniME™, and MaxScene have their own Media-Store channels.
- Clip Player
  The clip player offers a single playout channel for clips in the ITU-T H.264 (MPEG-4 AVC) codec in specific HD formats that can be assigned as a source on any bus in the switcher. Basic transport controls can be performed manually from the Clip Player page, using custom controls, or through AMP commands.
- 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.
- Sequencer
  The Sequencer allows you to create a playlist of custom control events.
- MaxScene
  MaxScene provides a simplified interface for creating a show with multiple key layers and basic transitions.

DVE Keys

A DVE key allows you to apply digital video effects, such as scale, crop, aspect ratio, position, rotation and border to a video image or another key type in either 2D or 3D space. When a DVE is applied to another key type, it is said to be flying (Fly Key).

Tip: You can see where 2D and 3D DVE channels are allocated from the Status page.

Table 1. Feature Supported by DVE Mode (2D/3D)
Feature	2D	3D
Size	0-500%	0-500%
Aspect Ratio	0-96%	0-96%
Position	X/Y	X/Y/Z
Crop	Left/Right/Top/Bottom	Left/Right/Top/Bottom
Freeze	Yes	No
Anti-Aliasing	No	Yes
Rotation	No	X/Y/Z
Border	Advanced	Simple
Border Color	Yes	Yes
Border Type	Flat/Bevel	No
Border Perspective	Yes	No
Lighting	Yes	No
Shadow	Yes	No
Mask	Box/Pattern	Box/Pattern
Split DVE	2 Channels	2 Channels

Keep the following in mind:

Keep the following in mind when working with a Fly Key:

The Fly Key feature consumes a single DVE channel for self keys, but two DVE channels for an auto select and chroma keys.
The Fly Key feature cannot be applied to a DVE key.
The Key Invert feature is not available for a Fly Key.
A chroma key should be initialized and adjusted before the DVE (Fly Key) is applied to it.
A DVE key will unfreeze when it is copied or swapped.