NewTek TalkShow VS-100 - Manual (Page 21)

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During Skype™ calls, TalkShow™ requires an audio and video Return source to send to
the remote caller:

The audio return lets the caller hear the opposite end of the dialog (it’s
customary to return a ‘mix-minus’ feed, to avoid a nasty echo effect; more
on that topic later).

Although the video return really could be almost anything, it typically
consists of a program feed from the video switcher.
The audio and video Return feeds can be supplied in several ways:
FIGURE 7
SDI
The Return video signal can be connected to the BNC connector marked SDI IN on
TalkShow’s rear panel (shown at left in Figure 7). If this SDI signal contains embedded
audio, you will not need a separate analog audio connection for the Skype Return.
T RI C ASTER ™ N ETWORK O UTPUT
NewTek’s TriCaster™ live production system has both an integrated audio mixer and the
ability to transmit a user-selected a/v program across a standard *network by means of
NewTek’s AirSend™ technology. TalkShow provides native support for this very
convenient alternative. * See note below.
Note: TriCaster 40 models do not support network output.