Audio Video Bridging (AVB) is a networking technology that enables the transmission and synchronization of high-quality audio and video streams over Ethernet networks. AVB is an industry-standard protocol that ensures reliable and low-latency delivery of multimedia data, making it particularly useful in professional audio and video production, as well as in automotive, industrial, and home entertainment applications.
AVB utilizes a set of IEEE standards, including IEEE 802.1Qat for stream reservation, IEEE 802.1AS for precise time synchronization, and IEEE 802.1BA for general AVB functionality. These standards work together to ensure that AVB devices can communicate seamlessly, maintaining synchronized playback across different media streams and minimizing jitter and latency issues.
One of the key features of AVB is its ability to prioritize different traffic streams, making sure that time-critical audio and video data are given higher priority than other types of network traffic. This prioritization is facilitated by the IEEE 802.1Qav standard, which allows AVB devices to reserve bandwidth and establish guaranteed network paths for their streams.
Additionally, AVB supports network-wide clock synchronization using IEEE 802.1AS, which ensures that all devices on the AVB network share the same accurate clock reference. This synchronization is crucial for maintaining lip-sync in audio-video systems and for enabling precise time-based operations in real-time applications.
Overall, AVB provides a robust and standardized solution for transmitting and synchronizing multimedia data over Ethernet networks, offering high performance, low latency, and exceptional quality-of-service for a wide range of audio and video applications.
