External renderer, External 2, Frame rate – vMix Live Production Software Pro User Manual
Page 35: Output size, Device (external only), Port (external only), Audio device (external only), Audio channels (external only)

vMix User Guide
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Select this option to output to the
vMix Video
device when
vMix Video
is a device that appears in 3rd party applications such as
Adobe Flash Media Live Encoder
and
Skype
and is also used for the built in Streaming feature.
Use Streaming Settings:
When ticked this option will match the streaming quality settings and should
remain ticked for the best results when streaming.
See
Streaming
External Renderer
Select this option to send video and audio out to compatible output devices.
Some examples of hardware that support output including most AJA, Blackmagic Design and BlueFish
devices.
Use Display Settings:
When ticked this option will match the Frame Rate and Output Size settings under
the Display tab at all times.
See
External 2
In
vMix 4K and
Pro
a second independent output can be configured for both
vMix Video
and
External
Renderer
.
This vMix Video device is called
vMix Video External 2
in 3rd party applications.
Frame Rate
Select the Frame Rate for the External Output. When using the External Renderer this should be set to the
frame rate required by the device's output.
For vMix Video / Streaming, this should be set to the
Master Frame Rate
set under the
tab for
optimal performance.
Output Size
Resolution for the External Output. This must be set to the output format when using the
External
Renderer
. For example if using the Composite/S-Video output this will usually be 720x576 for PAL and
720x480 for NTSC.
Device (External only)
Select the output device to use. (Such as the AJA Kona 4)
Port (External only)
Select the Port to use on the output device, for example HDMI or SDI.
Audio Device (External only)
Some output devices require selecting an Audio Device as well which can be selected here.
If this option is not visible, then the audio will automatically be included.
Audio Channels (External only)
See