User's Manual
Table Of Contents
- Introduction and Features
 - Getting Started
 - Presets
 - Video Controls
 - Fullscreen
 - Transitions
 - Production Clocks
 - Categories
 - Fade Bar
 - Pause Inputs
 - Overlays
 - Right Click Menus
 - Settings
 - Inputs
 - Input Settings
 - Audio
 - Recording
 - Live Streaming
 - External Output
 - Keyboard, MIDI and Controller Shortcuts
 - Activators - MIDI Lights and Faders
 - vMix Control Surface
 - Web Controller
 - Instant Replay
 - PTZ - Pan Tilt Zoom
 - NDI - Network Device Interface
 - SRT - Secure Reliable Transport
 - Data Sources
 - vMix Call
 - GT Title Designer
 - vMix Title Designer (Legacy)
 - PlayList
 - MultiCorder
 - Tally Lights
 - Interlaced Support
 - Statistics
 - Snapshot
 - Padlock
 - Scripting and Automation
 - Developer Information
 - Shortcut Function Reference
 - Safe Areas
 - Undo Button
 - Waveform and Vectorscope Monitor
 
vMix User Guide
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When using the Decklink Duo 2 or the Decklink Quad 2, port 1 will need to be configured in the Blackmagic
Desktop Video Utility
to group together SDI ports 1 and 2 as shown below:
External Output Configuration
When selecting a supported device in External Output settings in vMix, an Alpha Channel dropdown box will
appear as shown below:
None: No alpha channel, send the video output to the device as normal.
Straight: Output two channels over the device, Key + Fill on separate SDI ports. (This is also known as
Linear)
Premultiplied: Same as Straight except the Fill channel will be "Premultiplied" check with the receiving
device documentation to determine which of these options should be selected.










