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Pushing Air- the art of acoustic design

Acoustics is usually regarded (or often disregarded) as a black art that is practiced with no discernable science involved, with a great reliance on ears for measurement and blind faith as a method statement. Nothing could be further from the truth in the professional study of sound, with many practitioners furnished with several degrees and a weal...

Submitted by Dennis Lennie

Published 01 January 2010

Eye to Eye: Lighting and lighting control

In 1985 I visited the Paris HQ of France Regions 3 with Arthur Garratt, a freelance science broadcaster who worked mainly for BBC World Service. FR3 was one of the first European television networks to make full use of high-efficiency ENG and EFP. We learnt a lot and were able to offer one recommendation in return. Watching a news presentation by t...

Submitted by Dennis Lennie

Published 01 December 2009

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

Throughout this article series we have seen that IPTV network operators face many challenges and explained that effective test and measurement is key to overcoming these challenges. The majority of IPTV networks are still in the early stages of development and operators are therefore primarily concerned with optimising QoS parameters in order to ge...

Submitted by Dennis Lennie

Published 01 December 2009

SATIS in a day

Aware that several French distributors had pulled out of this year's SIEL & SATIS, I chunnelled to Paris on day two of the October 20-22 show with minimal expectations. The small size of the Guide de Visite (20 pages A5) added to my misgivings but the event itself proved respectably large, crowded and buzzing. Nearly 280 companies occupied stands i...

Submitted by Dennis Lennie

Published 01 December 2009

Lighting the X Factor

It’s Friday morning at a television studio in the shadow of Wembley Stadium’s iconic arch and already there are fans and paparazzi outside waiting to catch a glimpse of their favourite contestants and judges arriving for rehearsals. Now three weeks into the live final shows, nine contestants have reached ‘Rock Week’, once again singing for their li...

Submitted by Dennis Lennie

Published 01 December 2009

3D Movie Making: Stereoscopic Digital Cinema from Script...

Having indulged for several years in stereo photography of the hand-held cross-your-eyes variety, I was interested to watch the broadcast industry respond to the availability of increasingly affordable flat-panel 3D displays. A critical point in the price threshold has finally been crossed: fast-refresh-rate 22 inch 3D computer monitors using circu...

Submitted by Dennis Lennie

Published 01 November 2009

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

Testing IPTV NetworksThe Technology LifecycleThe deployment of new technologies tends to follow a similar lifecycle that begins with early research, development and standardisation and ends with full deployment and service management. The lifecycle diagram illustrated in Figure 5 shows a number of different technologies moving through the design an...

Submitted by Dennis Lennie

Published 01 November 2009

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

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

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

The filming of Lands End to John OGroats

I’ve been here for several minutes now. Standing in the pouring rain with a camera pointing at the road sign for Somerset, the drops of rain tapping on the camera rain cover add a certain atmosphere to the wild track. I stood trying to work out who was the madder, the two cyclists I was waiting for, or me. Here they come, 10 seconds on the tape, ba...

Submitted by Dennis Lennie

Published 01 August 2009

Polecam on Safari

Safaricam"No, you can’t get out of the car", the voice replied. "Why not?’ I asked. "Because you might get eaten by a lion."I put the phone down and contemplated what it was I had just agreed to do. The Kenya project started with a call from a French production company expressing an interest in hiring my Polecam system for three weeks. The series,...

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

SRW-5800 Training

“Hi Dave, how was the course?” This is the sort of greeting you come to expect from fellow engineers when you have recently attended a training course. Engineers are notorious for having no “small talk”, probably because our minds are usually concerned with things like volts, amps and ohms… and why that VTR always works on the bench, but fails as s...

Submitted by Dennis Lennie

Published 01 July 2009