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Analog audio inputs: 1-4
Analog audio outputs: A, B, and *Phones jack
SDI Video Inputs 1-4 and Genlock input.
SDI Video Outputs 1-4 and Tally connector
Note: The Phones output signal follows Aux, the active control channel delegate – A or B.
As desired, connect any local SDI video sources to one of the BNC connectors in the SDI IN section. We
will discuss NDI® (Network Device Interface) a/v source connections later.
Note that SDI video sources with embedded audio do not necessarily require separate audio connections.
3.3.2
GENLOCK CONNECTION
The Genlock input on 3Play’s backplate is for connection of a ‘house sync’ or reference signal (often a
‘black burst’ signal intended specifically for this purpose). Many studios use this method to synchronize
equipment in the video chain. Genlocking is commonplace in higher-end production environments, and
genlock connections are usually found on professional gear.
If your equipment allows you to do so, you should genlock 3Play and all cameras you configure as sources
for it (see your camera manual for details). To do so, supply the reference signal from the ‘house sync
generator’ to 3Play’s Genlock input connector.
3.3.3
TIMECODE CONNECTION
3Play supports external linear timecode (LTC). Connect the cable from your timecode generator to analog
Audio In 3 or one of the motherboard audio input connectors. External timecode is enabled and
configured in the Replay Desktop (see Section 7.3).
3.4
OUTPUT CONNECTIONS
Next we’ll discuss the audio and video output connectors along with relevant settings. We’ll start with
video output, not only so you can view your results, but because some aspects are best considered before
even beginning a 3Play session.
3.4.1
A/V OUTPUT
3Play provides multiple video and audio output connection options, and very flexible ways to display of
your live and recorded video streams. In addition, the A and B channel outputs, ‘clean’ versions of these
(i.e., without overlays), and all connected video sources are available on your network as NDI outputs.
Beyond this, the graphics card outputs supports Multiview options in addition to the connection displaying
the user interface (the number of ports provided for this purpose varies by model).
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