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The joy of field editing


In the world of remote working, cloud storage and instant news, the ability to edit on location at a shoot has become a pre-requisite. Only a few years ago, field editing used to be merely about the quick rough cut, the assembly of proxy files or simply the ingest of media in an edit-friendly format. These days, however, energy efficient, high perf...

Submitted by Kieron Seth#
Published 01 February 2013

Metering in the age of loudness: Keeping things on the le...


By Martin DysterThe new age of production and post production for HD broadcast has gotten more complicated with the advent of legislation and guidelines concerning the relative loudness between different programs, channels and, especially, commercials. With ATSC A85 in place in the U.S., EBU R128 covering the members of the European Broadcasting Un...

Submitted by Martin Dyster
Published 01 February 2013

3D for Cinema, ProAV and Events


Over more than a century of motion picture presentations there have been periods when 3D has emerged, and each time interest has faded away. The latest 3D wave goes back to the advent of digital technology for cinemas. Digital Cinema Initiatives (DCI) was formed in 2002 and delivered its first DCI Specification in 2005, when Doremi was well ahead w...

Submitted by Bob Pank#
Published 01 January 2013

Issues in surround audio and new technologies to address...


Issues in surround audio and new technologies to address them. Surround audio and the encoding technologies, such as Dolbys AC-3 used to transmit it, have introduced new issues in maintaining audio quality. At a time when skilled audio personnel are getting scarce and budgets are shrinking new technologies hold the key to delivering top quality aud...

Submitted by Bob Pank#
Published 01 December 2012

The highs and lows of histograms


Histogram displays for video analysis probably followed those found in common computer graphics programs such as Adobe Photoshop. This can be very useful in finding video signal problems that would be difficult or impossible to see with a conventional waveform display. The histogram is a way of showing statistical results as a bar-chart. The range...

Submitted by Kieron Seth#
Published 01 December 2012

Wibbly Wobbly Waveforms


The very first analytical electronic instrument, developed in the late 1890s, was the oscilloscope. This used a cathode ray tube (CRT) to paint a graph of voltage on the Y axis versus time on the X axis. Once television became a practical reality in the 1930s, the same instrument was applied to the video output from the camera and became the very u...

Submitted by Bob Pank#
Published 01 November 2012

Pointing out the right colours


In the old days of PAL and NTSC analogue television, a vectorscope was an essential tool for examining chroma at every part for the programme production and transmission chain. This was because the colour information was carried as a phase and amplitude modulation which could be sensitive to a variety of transmission or recording non-linearities an...

Submitted by Bob Pank#
Published 01 October 2012

Watch out for dead pixels


A dead pixel in a camera imaging sensor can manifest itself in a number of ways. Implying black, 'dead' is not necessarily the correct term for a pixel failure. This is because imager defects include hot pixels, sparkles, noisy or lazy pixels. These problems usually arise during the chip manufacturing process. Defective pixels can appear as unusual...

Submitted by Bob Pank#
Published 01 September 2012

Tally systems and Confidence Audio Monitoring for Sports...


Q: Because sports broadcast tends to originate from OB vehicles, having the capability to connect a tally system between trucks is vital. How do you connect your TallyMan controllers together to create an integrated, seamless tally system?A: When two OB trucks are engaged in the live broadcast of a major sports event, one truck will act as the main...

Submitted by Bob Pank#
Published 01 September 2012

Testing times of a 4K world


The term '4K' applies to some five slightly different picture formats with around 4,000 pixel horizontal resolution: all much bigger than HD. In fact roughly four times the total pixels required for 1920 x 1080 pixel high definition. 4K has been around for some years but was until recently only affordable by producers with mega budgets. Advances in...

Submitted by Will Strauss#
Published 01 August 2012

Handheld T and M the broadcast emergency service


“Test and Measurement”. Shudder. Like “Health and Safety”, “Bus” and “Replacement Service” or “Keith and Orville” it’s a collocation of words that fills me with dread. Seriously, who wants to read about “Test and Measurement”? Well, as it turns out, the answer is: quite a lot of people. Because, despite its lack of glamour, it is hugely important....

Submitted by Will Strauss#
Published 01 August 2012

Ask the Experts with Dolby


Q: Dolby has recently been making waves in imaging with its PRM-4200 Professional Reference Monitor, but isn’t Dolby an audio company?Dolby has been involved with imaging technology for years, beginning with Dolby® Digital Cinema in 2005, then launching Dolby 3D for the cinema in 2007, and then in 2010 we introduced the Dolby PRM-4200 Professional...

Submitted by Bob Pank#
Published 01 June 2012

Planning communications for a large sports outside broadc...


By Adrian Richmond and Nico LewisCommunications for the broadcast of live events are becoming more complicated and important than ever. On site, broadcasters only have one chance to grab the perfect image for the viewer– with time being a crucial factor. The larger the event the more viewers it reaches and the higher the risk that something could g...

Submitted by Bob Pank#
Published 01 June 2012

Testing mixed signals


It is fitting that a lot of the avid readers of this article are broadcast manufacturers flying over the Atlantic to NAB in Las Vegas so I have a captive audience to influence with an open invitation to come and visit us in the North Hall N5015. Whereas the new product range has been designed for applications in traditional settings such as enginee...

Submitted by Will Strauss#
Published 01 May 2012

2011: 3D Make or break?


Last year was predicted to be the year when 3D would leap forward or flop. History is littered with short periods of interest and development only for 3D to drop off the scene again. 3D Diaries has maintained that this time it’s different as now nearly all the right technologies are available – the only missing link being a practical autostereoscop...

Submitted by Bob Pank#
Published 01 February 2012