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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

Top Gear Test Drive Hovercam

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

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

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

Longevity of media archives

The role of the archive has evolved rapidly, delivering not only new revenue opportunities but crucial conservation possibilities for historical and cultural libraries that have lain dormant for many years. The economic downturn means that now more than ever cost saving is a huge issue; facilities need to create new revenue opportunities whilst red...

Submitted by Dennis Lennie

Published 01 August 2009

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

High consumer expectations have put pressure on content producers, network operators and equipment manufacturers to deliver consistently high quality audio and video to their end users. The proliferation of enabling technologies has resulted in a wide variety of formats and standards adding to the complexity of the challenges faced in establishing...

Submitted by Dennis Lennie

Published 01 August 2009

HD Camera Measurements. Getting the most out of your came...

Recap previous Parts:While the first parts covered the theory and actual measurements of white shading, setting up colorimetry, exposure, greyscale adjustments, alignment and matching of cameras using a waveform monitor, this final part is devoted to providing a better understanding of the displays used. Interpreting a waveform monitor displayA Wav...

Submitted by Dennis Lennie

Published 01 July 2009

Common Questions on the Topic of Distribution and Deliver...

As the Broadcast and Post industries continue to adopt file-based workflows, there has been an ever-increasing need for the implementation of technologies for the distribution of digital media. Being tapeless also means being aware of how to send and receive files over IP networks, but there are many common questions that arise. Here is a sampling...

Submitted by Dennis Lennie

Published 01 June 2009

Delivering Superior Quality of Service in IPTV Networks

To maintain differentiation in a competitive triple play market, the key operational challenge for telecommunications operators is how to efficiently deliver superior quality of service (QoS) levels. Intuitive use and simplified presentation of video quality and telecom transmission information are essential to win and keep customers. The video and...

Submitted by Dennis Lennie

Published 01 June 2009

PHABRIX storming ahead at NAB with eye and jitter

It is not often that a product is released that encapsulates so distinctly the essence of British ingenuity but the new SxE hand held test and measurement instrument with eye and jitter functionality from PHABRIX may just have set itself in that mould. Having successfully launched the PHABRIX SxA, a three in one portable testing device at IBC2008,...

Submitted by Dennis Lennie

Published 01 June 2009

Eye to Eye. Whats new in test and measurement 2009

The transition from analogue to digital programme production, storage and delivery lulled some innocent folk into anticipating a world without need for test equipment. If required at all, so the thinking went, all signal analysis would be performed in software. Maybe someday. For now, the T&M sector remains alive and well. The following summary out...

Submitted by Dennis Lennie

Published 01 May 2009

Mobile communications Eye to Eye

Point to point communication via satellite is one of the most useful tools available to television and radio reporters in a world of fast news distribution. This short summary looks first at some of the newest SNG link kit and then at broadcast-related telecoms. Advent Communications has introduced an enhanced version of its 1.5m and 1.8m NewSwift...

Submitted by Dennis Lennie

Published 01 March 2009

Camera rigs and lighting

The biggest single story at IBC this year, apart from the usual company-eats-company rumours, was the continuing progress of stereoscopy or '3D' as it is currently undersold. A stereoscopic snapshot may well be 3D (displaying length, width and height) but a stereoscopic movie is in fact 4D as it includes a timeline. John Logie Baird set the stereos...

Submitted by Dennis Lennie

Published 01 January 2009

Getting the best out of your LCD

Getting the best out of your LCDs?Many people who use CRT picture monitors have found the introduction of LCD displays disappointing. Getting the best out of your LCD may not be as simple as it may seem. With a wide choice of vendors and models all proclaiming broadcast quality, it can be difficult to determine which product is most suitable for yo...

Submitted by Dennis Lennie

Published 01 November 2008

Virtual Studios

Traditionally virtual studios have been extremely expensive to equip due to the amount of technology required just to make the studio work. Besides the standard studio cameras and lighting, sophisticated additional technology is required to provide feedback from lenses, pan and tilt heads and dollies, to seamlessly synchronise foreground and backgr...

Submitted by Dennis Lennie

Published 01 November 2008