Using Avid Artist | DNxIV for UltraHD/4K
21
Using Avid Artist | DNxIV for UltraHD/4K
4K/UltraHD Transport Modes
The 4K and UltraHD SDI formats can use different transport modes, associated with the number of
links used to transport the signal, the data rates involved, and the way the image data is organized.
Avid Artist | DNxIV supports both Quadrant and Two Sample Interleave (2SI) transport standards.
Many different combinations of modes and data organization exist.
In 4K mode, single link transport is available as either 12G or 6G (which are both 2SI). Whether the
video is auto-sensed as 12G vs. 6G is dependent on the data rate of the incoming or outgoing signal.
For example, 4K p30 at 8bit 4:2:0 requires 6G only.
Besides single link transport, Avid Artist | DNxIV also supports the following multiple link transport
modes for UltraHD and 4K:
•
Quadrant 4-wire (transported on four links)
•
Quadrant 2-wire (transported on two links)
•
2SI (two or four links automatically selected)
The amount of data in the signal affects the number of links and data rates necessary to carry that
signal.
Quadrant Mode
In Quadrant Mode you can use four HD or 2K signals (1.5G) to input / output UltraHD or 4K at
30fps or below, or four 3G signals to enable HFR and / or deep color. Whether using four 1.5G or
four 3G wires, each represents individual quadrants of the higher definition UltraHD 3840x2160 or
4K 4096x2160 4K formats. Physical connections of the quadrants will be mapped to the SDI
connectors as shown. Monitoring one of these HD signals on a standard SDI monitor will display one
quadrant of the picture.
DS Keyer
Setup and control the insertion of keyed video from
the frame buffer or graphics files with alpha channel.
LUT
Load a lookup table (LUT) file to adjust the
calibration of color for any source.
Timecode
Monitors SMPTE 12M-2 timecode and configure
timecode window burn output.
Presets
Add or delete saved preset configurations (handy for
quick and easy recall of different Avid Artist | DNxIV
settings for varied workflows).
Firmware
Install firmware from your currently installed AJA
software package.
Info
Display status information and the firmware version
number. This information is generally intended for
troubleshooting/support.
Screen
Functions
