【ProAV Lab】introAVoIP#01 - What is AV over IP?

By Gary Zheng & Kieron Seth, Lumens

June 07, 2022 20962


▶ Introduction

AV over IP means "Audio-Visual over Internet Protocol". In principle, it transmits audio-visual data and control signals over a network such as a LAN, WAN, or the Internet. Unlike traditional AV environments that use HDMI or a dedicated AV cable, AV over IP is designed to use standard network connections and equipment to transmit and switch video and audio.


▶ Why AV over IP is trending? 

According to a survey conducted by System Integrator Magazine, 84% of system integrators are embracing AV-over-IP as an AV distribution system for customers.


Are you ready to fully embrace AV-over-IP as an AV distribution for your customers?

Source:  8 AV over IP Market Trends Installers Need to Know

The major reasons are:

1. Reduce installation and ongoing maintenance costs
2. Remote management of AV streams over the Internet 
3. Long distance cabling: overcomes the transmission limitation of HDMI 
4. Easy installation: a single CAT5e or CAT6 cable can carry AV and control signals and send power to connected devices



▶ What are the AV over IP building blocks?

First, the video and audio signals are encoded and converted into a compressed, IP-friendly format. The data is packetized into TCP or UDP format for transmission over Ethernet networks. The hardware required is as follows:

Encoder: capture, digitize, compress and packetize the HDMI signal for streaming 

• Decoder: receive the stream, de-packetize, decompress and convert back to HDMI 

• IP switch: routes the encoded AV IP streams to decoders for display

• Controller: configures and manages the AV distribution network, and monitors the status of connected devices


Typical HAV/IP Setup


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