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KVM enterprise and video matrix switchers in broadcast ap...


KVM enterprise and video matrix switchers in broadcast applicationsEngineers within the professional broadcast world are comfortably familiar with video routers for the control of uncompressed video and audio signals within live studio and editing locations. However there is less familiarity with the use of KVM enterprise and video matrix switchers...

Submitted by Kieron Seth#
Published 01 August 2011

HTML5 and H.264. Friends United....


H.264 - The Success StorySome technologies like DVD, CD, TV and the PC prove themselves over time. They are practical, flexible, reliable - even universal. Is H.264 one of those magic bullet technologies?H.264, also known as MPEG-4 Part 10 or AVC, is the video codec that has taken the broadcast and consumer world by storm. In 2008, Anthony Rose, fo...

Submitted by Kieron Seth#
Published 01 August 2011

So what is Digital Television. Part 2 - Back to Basics


Component digital videoThe designers of early analogue special effects equipment recognized the advantage of keeping the red, green, and blue video channels separate as much as possible during any processing. The PAL and NTSC encoding/decoding process is not transparent and multiple generations of encoding and decoding progressively degrade the sig...

Submitted by Kieron Seth#
Published 01 August 2011

Question and Answer with Trilogy


Question 1: What bandwidth would I need to allow on my network to reliably support IP communications and what other issues would I need to take into consideration?The bandwidth required to support IP based intercom or talkback communications really depends on the quality of audio you want to achieve. Therefore the higher the quality, the greater th...

Submitted by Kieron Seth#
Published 01 August 2011

Easy and accurate testing of low-power transmitters for d...


Using portable TV analyzers for gap filler installation, maintenance, and service measurementsTwenty-five kilograms or more: That is how much the test equipment needed for testing digital television transmitters – a test receiver, spectrum analyzer, and power meter – weigh all together. This weight is not an issue for a transmitter like the one on...

Submitted by Bob Pank#
Published 01 July 2011

Working With Audio Signals


For most of the past century, working with audio signals was a very straightforward process. The audio information was converted to electrical signals in the form of a varying voltage between the two conductors in a pair (balanced) or between a conductor and the ground reference (unbalanced). The bandwidth, frequency response, distortion and noise...

Submitted by Kieron Seth#
Published 01 June 2011

Post Production Ask The Experts


IntroductionIt’s a familiar scenario: A client calls with an urgent transfer request. It may be a movie sourced at 23.98PsF that needs conversion for broadcast, and the client needs an HD version at 1080 50i with Dolby E audio and an SD program at 625 50i with PCM audio, as well. Or perhaps the content was shot at 1080 59.94i, but the client needs...

Submitted by Bob Pank#
Published 01 May 2011

Transforming Post Production With Content Supply Chain Ma...


These are challenging times for post-production companies and operations. Even the most sophisticated post houses are scrambling to evolve their content chains in the face of game-changing trends: the move from tape- to file-based workflows, the growth of new distribution outlets and windows, and the drive towards same-day-and-date release of major...

Submitted by Bob Pank#
Published 01 May 2011

DVB-3DTV: A Milestone


In 1822, George Stephenson set his Standard Gauge for the world’s first steam railway at 4 foot 8 inches (1.44m), to match a nearby wagonway that worked well at Killingworth Colliery. Despite Isambard Kingdom Brunel building the London-to-Bristol line (1838) on what he considered to a better 2.2m ‘Board Gauge’ (he was right!), the Gauge Act of 1846...

Submitted by Bob Pank#
Published 01 April 2011

HD Video on your website


IntroductionVideo has become an affordable way to effectively connect with your customers. Whether you are a content producer or equipment manufacturer there are fewer ways to communicate a message more quickly, concisely and with as much impact. This article looks at how the current state of online video, what the opportunity is, and how to get st...

Submitted by Bob Pank#
Published 01 April 2011

The 4 Golden Rules of Streaming


In November 2009 a Florida-based web design company ran a series of tests on their website. Their bounce rate (the % of visitors to their site that hit their home page but go no further on a site) started at 45% - a barely acceptable rate. Over the course of a month, they added graphic after graphic to their site. The effect was catastrophic with a...

Submitted by Bob Pank#
Published 01 April 2011

Realising the full benefits of hybrid broadcast and broad...


We are all clear that there is a great deal of momentum in pay television at the moment. Alongside that driver, though, there are others which are dramatically changing the way consumers watch television. These include the desire to watch programmes at a time of their choice not that of the broadcaster (and in the room of their choice), and the use...

Submitted by Bob Pank#
Published 01 April 2011

Watching Television


The pictures on this page give you a small insight into my life. The first is a picture of the television in my living room. At the time of taking the picture I was watching the English cricket team losing in high definition. The second picture is of my desk. Again you will see that it is dominated by a large screen (I’m afraid I still have a sneak...

Submitted by Bob Pank#
Published 01 March 2011

Using Multipoint Monitoring to Ensure Reliable Digital Vi...


Because the quality and bandwidth-efficiency advantages of digital over analog methods have made digital transport preferred, the world continues its migration to an all-digital approach to delivering video signals – from the studio through distribution networks to the end-viewer. As with any new technology, adopting and integrating digital video d...

Submitted by Bob Pank#
Published 01 March 2011

Evaluating Video Monitors


Video monitors have always been a critical component in any broadcasting operation — but they have evolved significantly as the industry-wide migration from analog broadcast to digital SD and HD has placed new demands on the monitoring function. Current products include feature sets that mirror the complexity of today’s monitoring operations, with...

Submitted by Bob Pank#
Published 01 March 2011