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This is the third installment in a series of articles about the newly-published SMPTE standard covering elementary media flows over managed IP networks.
Figuring out the amount of bandwidth a video signal requires on an IP network isn’t terribly hard, but it does require some familiarity with the underlying technologies and packet formats.
As previously covered in this column, IEEE 1588 Precision Time Protocol (PTP) is an essential part of a modern all-IP media production system.
This recommendation was developed specifically to address the need within modern media production facilities to have an efficient, flexible method to transport uncompressed signals of various types.
As broadcasters increasingly move toward IP-based systems within their facilities and for wide area network connections, the ability to prioritize some packets over others is becoming more desirable.
The IEEE 1588 Precision Timing Protocol defines a set of techniques for synchronizing various devices across packet-based networks, including Ethernet switches and IP routers.
The latest iteration of Google’s video codec for Internet streaming applications is called VP9, and it is starting to gain traction in the turbulent market for video codecs.
Audio Video Bridging technology is being considered for use in high-performance Ethernet networks as a potential replacement for SDI video infrastructure in the studio.
Many useful types of signals are synchronous, meaning that they use bit patterns that are transmitted using a built-in, fixed-frequency clock signal.
Over-the-air DTV transmitters are relatively easy to test, at least with respect to the integrity of the outgoing video stream.
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