Matrox

The way that bit errors occur in the creation or transmission of packets and how they affect the transport of media is a broadly misunderstood concept related to IP...

This will be our final newsletter to focus on Secure Reliable Protocol (SRT). We’ll investigate how it compares to QUIC (Quick UDP Internet Connections). You will recall that in...

In this second newsletter about Secure Reliable Transport (SRT), we’ll examine its impact on an IP network. Then, we’ll compare that to the behavior to the activity of adaptive...

The next few newsletters will focus on the new transport protocol Secure, Reliable Transport (SRT). Introduced to the market by Wowza and Haivision, SRT has dozens of companies supporting...

Recently, I was meeting with the AV staff of a local university. The objective of the conference was to introduce them to a new Ethernet based technology that is...

We often hear discussions about users’ quality of experience (QOE) relative to video. The term usually refers to subjective judgements about videos and audios that are played on a...

Few of us would argue IP is relatively new to the AV industry. There are many lessons we can learn from the experiences that telecom encountered when IP was...

In this newsletter, my objective is to focus on security of AV devices. However, I’m going to use an indirect approach to this topic. First, I’ll discuss an internet...

To avoid problems when installing an AV device into an IP network, it is prudent to carefully consider the procedure the device uses when it connects to that network....

Buffers in the network are critical for the delivery of audio and video. We often don’t think about the role they play. If they are properly sized and managed,...

In this newsletter, we will consider three modes of transmitting packets in IP networks: unicasting, multicasting and broadcasting. Most messages are unicast. That is, a single sender sends a...

Customers who are implementing IP video systems often ponder the role wireless might play. It seems to offer some significant advantages. Two of the most promising are mobility and...

Network errors can occur at many levels during transmission of data and files.   They can happen at the physical level due to interference, reflections, defective transmitters, faulty receivers, or...

As the audio-video industry rushes to embrace IP, a secondary movement developed to change cabling from traditional coax, twinax, and proprietary cables to “category” cables. Most notably the favorite...

IT network managers often indicate that video should be on its own VLAN. Some AV vendors say that the traffic created by their devices should be on a single...

In this fourth of our newsletters that have focused on the types of IP video, we will investigate surveillance video. Cameras that send and receive IIP packets and are...

The video type we examine in this newsletter is distinct from the others we have studied. Adaptive bit rate (ABR) video is usually transported using TCP as the transport...

How videoconferencing content performs on an IP network and how to monitor and troubleshoot it

In previous newsletters, we talked about the effect that packet loss and network latency would have on IP video. In both cases, we found that any deterioration of the...

In our last newsletter, we investigated the effect of network latency on IP video. We found that if latency was high, video transported with TCP might pause but would...

In our last newsletter, we discussed the important differences that result from using TCP (Transmission Control Protocol) rather than UDP (User Datagram Protocol) as the transport protocol for IP...

One of the more challenging issues related to transporting video over IP networks is understanding the difference between the two transport protocols:  TCP (Transmission Control Protocol) and UDP (User...