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Articles by Dennis Lennie

Digital Vision case study

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The Edit Store, based in London’s W1, is one of the last few independent facilities in the city. Spread across two buildings, the Edit Store provides many of the world’s leading broadcasters with offline, online, grading and audio dubbing facilities primarily for broadcast factual programmes. At the heart of its HD grading suite, introduced in 2008...

Submitted by Dennis Lennie

Published 01 October 2009

Eye to Eye New post-production kit at IBC 2009

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This alphabetical overview of new video and film post-production kit at IBC 2009 was going to start with Apple but the company pulled out of both NAB and IBC in 2008. I begin instead with Avid which has certified its Media Composer, NewsCutter, Symphony and DS software to run on the new HP Z series Workstations – the HP Z800 and HP Z400. Avid custo...

Submitted by Dennis Lennie

Published 01 October 2009

Keep your friends close and your enemies closer

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This month, and largely because I am on holiday at the moment and haven’t looked at an English paper or seen a television – and as the Internet is currently not working (which makes posting this article on time an interesting task) – I thought it would be useful to look at elements of business strategy that will help you work out how to focus your...

Submitted by Dennis Lennie

Published 01 October 2009

Lighting series

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So far in this series, I have stressed some of my own preferences for good portrait lighting; using Fresnel lamps for key lights to enable accurate barn dooring, minimum spill light and an even ‘field’ of light. Open faced lamps, whilst cheaper, do not give the same control of light, they give rise to double shadows and are also prone to bubble fai...

Submitted by Dennis Lennie

Published 01 October 2009

A Guide to Testing IPTV: Technologies and Challenges Par...

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Before we can go on to look at testing IPTV systems, it would be useful to provide an overview of the technologies involved. Network ArchitecturesFigure 3 shows an example of a typical IP network structure. Content is first delivered into the video headend; this can be done in a variety of formats over a number of different delivery mechanisms (e.g...

Submitted by Dennis Lennie

Published 01 October 2009

Automation in Uncertain Times

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In light of the unfavourable economic outlook broadcasters need to protect their investment in technology like never before. There is a high chance that some products designed to make the broadcast environment more efficient will become obsolete and this in turn will have a knock-on and negative effect on workflow in transmission suite. Although br...

Submitted by Dennis Lennie

Published 01 September 2009

Converting for displays

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Behind every great display there’s a great converter. Ever since television started to go digital in studios and post production, the number of digital formats has grown. For a while the television standards bodies got a grip and succeeded in pulling nearly everyone along the ‘SDI’ track; now itself expanded to HD-SDI and 3G-SDI – carrying a multit...

Submitted by Dennis Lennie

Published 01 September 2009

Ask the experts. Eye & Jitter

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Why should TV broadcast engineers be interested in adding Eye and Jitter measurement to their T & M facilities?The call for Eye and Jitter as part of overall video test and measurement lies in the widespread adoption of serial digital interface (SDI) standards for broadcast. Unlike analog transmission in which the image quality gradually degrades a...

Submitted by Dennis Lennie

Published 01 September 2009

Eye to eye Picture displays and multiviewers 2009

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The transition from cathode-ray tubes to flat-panel display devices for broadcast picture monitoring was a long time coming but is now almost complete. Grade 1 CRTs from suppliers such as Ikegami and Sony are still purchased in small numbers for monitoring in quality-conscious playout centres and post-production houses. For every other broadcast ap...

Submitted by Dennis Lennie

Published 01 September 2009

Diversify - the key to success

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Most business could survive the recession if they adapt what they do, or how they do it, explains Peter SavageIn the current economic climate, with the market shrinking, every business has to look at ways of growing or developing – if they are to survive. And sometimes you have to think outside the box. There is, as they say, only so much blood you...

Submitted by Dennis Lennie

Published 01 September 2009

Ancillary Data Monitoring in Multiviewers

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The broadcast environment has gone through enormous change over the last decade, creating challenges in the management, storage and broadcast of material. Factors contributing to these challenges include the increase in the number of channels with the move to digital, the introduction of various aspect ratio and video standards with the transition...

Submitted by Dennis Lennie

Published 01 September 2009

Top Gear Test Drive Hovercam

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Hovercam were contacted to work on some new ideas for Top Gear back in January 2009. The production team were keen on trying new ideas to put a different perspective on the cars that are tested for performance around their test track at Dunsfold, Surrey. Typically the program has featured two-dimensional imagery of super cars, so the idea was to br...

Submitted by Dennis Lennie

Published 01 September 2009

How to choose a broadcast display

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How to choose a broadcast display…10 years ago, buying a CRT monitor was simply a case of buying the latest version of your facilities favourite brand in either Grade I or II. The advent of the LCD, HD and the demise of the CRT means we have now to try and decipher all the marketing jargon to work out which display best fits our needs. To help de-m...

Submitted by Dennis Lennie

Published 01 September 2009

Tv-bay Digital Signage Special Report IBC2009

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Sign of the times at IBCDigital signage – the use of video screens or projectors to create dynamic information and advertising displays – has moved on rapidly from technological showcase and niche market to become a mainstream media. Recent research by Multimedia Intelligence predicts a doubling of the market by 2012, with 2.3 million displays in u...

Submitted by Dennis Lennie

Published 01 September 2009

Guide to Testing IPTV Technologies and Challenges Part 2

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In Part 1 of this series we gave a background to IPTV and explained that the two-way nature of IPTV networks offers many advantages over traditional broadcast technologies, but also presents a number of technical challenges. In this part we will begin to examine some of the challenges faced by IPTV service providers, and the importance of Quality o...

Submitted by Dennis Lennie

Published 01 September 2009