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Digital Vision case study


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


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

Lighting series


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...


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

Converting for displays


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


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

Ancillary Data Monitoring in Multiviewers


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

How to choose a broadcast display


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

Guide to Testing IPTV Technologies and Challenges Part 2


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

Modern multiviewers


The monitoring of multiple video sources has been simplified and costs greatly reduced by the use of multiviewers. These make use of two principle technologies: large high-resolution video screens and the real-time resizing of video. The market is now well developed and provides a wide choice of specifications such as the number of inputs and their...

Submitted by Dennis Lennie
Published 01 September 2009

OLED vs LCD


There was a rapid change in image display technology within the last few years. Nowadays CRTs are history, flatpanels substitute them everywhere. Even in the broadcast industry. Different technologies dominate the market;Plasma - a self-lighting principle - mostly used for large screens;TFT-LCDs - a concept that always needs a backlight - most comm...

Submitted by Dennis Lennie
Published 01 September 2009

Filming for the army on Salisbury Plain


The ApproachIt’s no secret. Soldiers are trained to feel invincible, They develop a whole persona around focussed “toughness” and the ability to take care of themselves. But nobody is tough enough to withstand being crushed between a 70 tonne Warrior and a Land Rover. The problem is how to explain this to men who as a day job, get shot at. That was...

Submitted by Dennis Lennie
Published 01 September 2009

Why choose a broadcast or professional monitor


Just as it’s unlikely that anyone would purchase a family vehicle to set trailblazing records around a race track and a sports car is not going to be the best choice for off-road use, the same principle is true of monitors – the key is to match the product to the demands of the task. So what are the differences between the major monitor families?Co...

Submitted by Dennis Lennie
Published 01 September 2009

Beating the Blu-ray coding blues


Tommy Simonsson runs SitoCad in Stockholm, Sweden, a professional video production company specialising in industrial work, conferences and weddings. He shoots in high definition on a Sony PMW-EX3 camcorder, and finishes his projects using the Grass Valley EDIUS nonlinear editor. “When I show them what HD looks like, most of my customers choose Blu...

Submitted by Dennis Lennie
Published 01 August 2009

Ask the Experts on the Topic of Distribution and Delivery


NAB 2009 was fascinating with respect to how many customers were looking for solutions and insisting that manufacturers work together to provide solutions, as opposed to just supplying products. File-based workflows were the talk of the town (well, at least the talk of NAB) and there certainly continues to be significant discussion and implementati...

Submitted by Dennis Lennie
Published 01 August 2009