Information: Part 6 - Loudspeakers September 22^nd 2022 - 09:00 AM

Information theory can also be applied to loudspeakers, which are among the most difficult of transducers to design. Measuring the information capacity of loudspeakers is a useful tool.

Transforms: Part 8 - Aperture Effect September 15^th 2022 - 09:00 AM

Here we look at some practical results of transform theory that show up in a large number of audio and visual applications.

NextGenTV Mid-2022 Progress Report August 9^th 2022 - 09:30 AM

Some call it the Broadcast Core Network, or Broadcast Internet, or One-to-Many Private Datacasting. Others simply call it datacasting.

Information: Part 5 - Moving Images August 3^rd 2022 - 09:00 AM

Signal transducers such as cameras, displays, microphones and loudspeakers handle information, ideally converting it from one form to another, but practically losing some. Information theory can be used to analyze such devices.

Transforms: Part 7 - Standards Conversion July 26^th 2022 - 09:00 AM

The transform is a useful device that has some interesting characteristics. On one side of a transform we might have the spatial domain, for example data describing an image in terms of brightness as a function of position. On the other side we might have coefficients describing the spatial frequencies…

How Open Caching Aims To Support Broadcast Grade Streaming - Part 2 July 22^nd 2022 - 09:00 AM

Open Caching is still relatively young. In fact, it is about 10 years younger than the first major introductions of D2C Broadcaster services like BBC iPlayer.

Electricity: Part 5 - Wind Turbines July 21^st 2022 - 09:30 AM

Wind turbines are increasing in number because they produce electricity with reasonable environmental impact. But how green are they really?

Master Control: Part 1 - The Four Missions Of Master Control July 20^th 2022 - 10:00 AM

We begin this mini series with some history, the basic principles of Master Control and the evolution of centralcasting.

UK Competition For Frequencies Squeezes Out Free To Air Channels July 15^th 2022 - 09:00 AM

The UK’s sole DVB-T service is called Freeview, and it’s by far the most commonly used and widely recognised way to watch television in the country. Upcoming changes to Freeview, though, will affect the availability of certain BBC channels – and highlight future challenges which face anyone who uses radio…

Information: Part 4 - Data Rates July 7^th 2022 - 09:30 AM

In an increasingly digital world, it may be useful to look at the amount of data needed to represent various media. Note that the amount of data is being considered; the amount of information will always be somewhat less than that.