¶ Broadcasting an Audio or Video Signal via NDI® on the Local Network
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To broadcast an audio or video signal via NDI® on the same local network as the Scenic station, create an « NDI® Output » from the « Network » option in the « Destinations » menu;
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The « NDI® Output » then appears in the destination axis of the Scenic assignment matrix;
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You can then assign an audio and video source to it, whether it is local or from a SIP session partner;
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Click on the NDI® destination label to open the Configuration Panel, rename it, and activate it by clicking the « Process On/Off » switch. The NDI® destination must be active (ON) to make it available as an NDI® source on the local network.
Like SIP destinations, when an NDI® destination is active, the reset, delete, or assignment functions are all locked (padlock icon) to prevent accidental interruption of signal transmission on the local network, especially when making other assignments in the Scenic matrix;
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Additionally, verify that the signals broadcast via NDI® are accessible on the local network from the NDI® source creation window. To do this, see the section Retransmitting an NDI® Audio or Video Signal Broadcast on the Local Network below.
¶ Creating and Retransmitting an NDI® Source to a Local Destination (Hardware Output)
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Once an NDI® stream is broadcast on the local network, add an « NDI® Input » from the « Network » tab in the « Sources » menu;
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From the dropdown menu, select the desired NDI® stream from those available and click the « Add » button;
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The « NDI® Input » then appears in the sources column.
Click on the NDI® source label to open the Configuration Panel, rename it, and activate it by clicking the « Process On/Off » switch so it shows « ON »;
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Once the NDI® source is activated, the video and audio signals it transmits will be visible and assignable to a destination of the same nature in the matrix;
¶ Retransmitting an NDI® Source to a SIP Destination (Wide Area Network)
Like any other video source, a video signal from an NDI® source must first be encoded in H264 format before it can be assigned and then transmitted to a SIP Destination.
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From the « Compression » menu, create an « H264 Encoder » which will appear as a Source/Destination pair in the Scenic assignment matrix;
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Click on the label of the source or destination « H264 Encoder » to open the Configuration Panel, rename the pair according to the video signal to be encoded, and adjust the desired transmission bitrate if necessary (default = 5 Mbps).
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As soon as an « H264 Encoder » is added to the Scenic matrix, you can assign a raw video source to the destination portion of the encoder, and the corresponding source portion will immediately be assignable to a SIP destination.
Additionally, verify that the encoded video signal has the desired bitrate by hovering the mouse cursor over the video playback icon of the encoded signal (e.g., ±5 Mbps).
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Finally, assign the audio and video signals (H264 encoded) from the NDI® source to the desired SIP destination, then start the call to transmit them to your SIP session partner. From then on, the NDI® source, as well as its assignments to the encoder and SIP destination, will be automatically locked until the SIP call is interrupted.
