Teradek User Guide

ART Protocol


ART (Adaptive Reliable Transport) is a UDP video streaming protocol that delivers ultra low latency (ULL) audio and video with mission-critical resilience over public and private networks. ART evaluates both video content and network characteristics simultaneously, optimizing the compression for both in one step. The protocol is adaptive and utilizes joint source channel coding, which offers robust FEC to the most significant video information, reduces re-transmission delays, and constrains the peak bit rate. Low latency streaming protocols introduce delays that are noticeable by the user, particularly so when video is required for remote control: cloud gaming, remote machinery, and remote driving. Despite increasing Packet Error Rates (PER) and Round Trip Time (RTT), ART’s streaming latency does not significantly increase as it does with others, like SRT (see graph below). 

ART is designed for use in point-to-point video workflows (P2P) as well as multipoint distribution. Typical applications for the protocol include: remote and interactive live productions, robotic / vehicular teleoperation, and real-time monitoring and collaboration.

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