Challenges and Solutions for Audio/Video Distribution

After visiting various projects around the UAE, we came across many project that have faced a serious issue of wiring video extenders and proper video Matrix. All of this is to avoid using the appropriate devices that would cost the same on the long run. In this article, we will explain the various options and the way to overcome it.

Big meeting rooms and conference halls have extend in dimensions above 5m x 5m. To wire media from one end of the room to the other, the system must have the appropriate cable to transmit the required content. While an good quality HDMI cable can extend 4K60 4:4:4 (TMDS bandwidth of 18 Gbps) upto 6.1m (depending on manufacturer) and 1080p content up to 12m (depending on manufacturer), Digital Media and HDBaseT is a solution that helps extend 4K60 video signals for up to 100M. Extender is a simple solution for transferring the signal from one location to another.

On the other hand, a video matrix is used as a middle man to handle many inputs to many outputs. So imagine you have 10 screens to display your presentations, the matrix will help put every content at the display screen selected. A usual matrix comes with HDMI Inputs and HDMI outputs.

 

The New Challenge:

With the introduction of 4K, we are limited with the distances between the source and the display to play this type of video and we will for sure require extenders. So the number of extenders with a video distribution solution increased and so a dangerous way to install these extenders is to stack them close to each other. Especially when they are 2 cm apart, the heat is accumulating and the power cables and HDBaseT cables are overlapping.

One of the projects with overload of transmitters and receiver. Imagine the wires behind and the heat released.

 

Traditional Solutions For Large Facilities:

At Crestron, Digital Media (DM) Modular Matrix can handle the switching in the displays between the sources. The switcher comes in various sizes depending on the amount of video input and output (upto 128 video input and 128 video output. So instead of distributing only HDMI connections, the DM Modular Matrix has slots for installing special cards that cover media such as RCA, VGA, BNC, SDI, HDMI, network stream, DM Copper connection or DM Fiber connection, covering various video and audio formats.  While DM copper can extend media up to 100m, DM fiber can extend the media signal up to 12 km.

A 32 input by 32 output modular DM Switcher

From the AV rack side, the DM Modular Matrix replaces the receivers and the transmitters and the opposing transmitters and receiver are placed at the source and the display respectively.  

Sample of Digital Media 8G or HDBaseT traditional connection

 

The New Solution for Large Facilities:

Multicast is the newest technology and delivering media using network is the latest. Unlike the usual streaming options available in the market, Crestron was successful in delivering 4K60 4:4:4 which require 18Gbps in a single Gigabit network connection. Competitors were successful in delivering network audio and video however they had to sacrifice the following:

  • Latency
  • Image quality (lower resolution)
  • Less bandwidth ( 10G network connection)

With Creston NVX, the best part is that the system encodes, decodes and scales at no latency. The media is transported in the network through a device that can be an encoder or decoder and the system can be expanded to many devices with the limitation being the network switch capability. Security is another factor with NVX

The All New NVX Method for transporting Audio and Video around the network