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Calibrating monitors for HLG-1.2 High Dynamic Range working

We’ve now done a couple of Sony BVM-X300 (4k/HDR OLED panel) monitors for HDR-TV deliverables to the BBC. The Beeb are behind the Hybrid Log Gamma standard, currently at 1.2 for broadcast. It’s benefits over Dolby’s 10-bit version of their Vision HDR system (also called DolbyPQ) are many and rather splendidly the DVB as well [...]

By | 2017-04-13T08:29:42+00:00 March 14th, 2017|Categories: Broadcast Engineering, tips|Tags: , , |0 Comments

Is now the time to move your machine room out of your facility?

Heading to here? We’ve done it. Let root6 help you to remote your machine room Is now the time to move your machine room out of your facility? While the New Year ushers in an era of largely unforeseen political uncertainty, in our industry, change is, as always, inevitable. The consumption of legacy linear broadcast [...]

Pro Tools | MTRX – AVID Announce New Audio Interface

      Avid announce Pro Tools | MTRX a new audio interface for Pro Tools | HDX and HD Native systems completing the range of their existing HD IOs. Developed for Avid by Digital Audio Denmark, the Pro Tools | MTRX is a powerful multi-format I/O for Pro Tools with the same sonic qualities of DAD’s AX32 [...]

IBC in the rear view mirror

IBC has lived up to its usual annual billing with lots of announcements, acquisitions and activities. We are going to try and grab a outline or collection of the things that we think you shouldn’t have missed from both the big and small players. Acquisition headlines:  Black Magic Design (BMD) announced that they had hoovered [...]

By | 2016-10-29T08:54:35+00:00 September 21st, 2016|Categories: Broadcast Engineering, Events, IBC, News, Opinion|Tags: |0 Comments

LTO7 arrives with the SXL

Data tape backup used to be the preserve of IT and database admins, seeking to manage a so called ‘tier3’ backup and offsite repository for their material. In those days data tape systems were expensive, complicated, and generally uncommon outside of large corporates and government organisations. Fast forward to the modern world of file based [...]

By | 2016-10-29T08:54:37+00:00 June 9th, 2016|Categories: Broadcast Engineering, Products, root6|Tags: , , , , , , , |0 Comments

An excellent little monitor

It seems to be a thing for small on-set/camera monitors that they should have a hi-bright mode when being used in non-edit environments. The Boland BVB7a is an excellent little monitor and can be powered from the camera's 12v battery feed as well as coming with a DC PSU. It can take SDi (single or [...]

By | 2016-06-08T17:54:13+00:00 May 27th, 2016|Categories: Broadcast Engineering, Products|Tags: |0 Comments

Phil Crawley to speak at 2016 HPA Tech Retreat

root6's Chief Engineer Phil Crawley has been invited to speak at the Hollywood Professional Association's (HPA) 2016 Tech Retreat to be held at Oxfordshire's Heythrop Park Resort in July. The HPA Tech Retreat, sponsored by SMPTE, is an informal gathering for those engaged in the many disciplines supporting the creation, management and dissemination of content [...]

By | 2016-10-29T08:54:38+00:00 May 24th, 2016|Categories: Broadcast Engineering, News|Tags: |0 Comments

BM UHD/4k converters – some gotchas

https://www.blackmagicdesign.com/products/miniconverters/techspecs/W-CONM-17 I've used a few of these guys recently - Blackmagic's quad HD/SDi input to HDMI 2.0 output for taking the UHD / 4k (either tile or 2SI standard) and making something that will display on a 4k domestic TV. They seem to work quite well, but here are a few things that I had [...]

By | 2016-10-29T08:54:39+00:00 May 12th, 2016|Categories: Broadcast Engineering, Products, tips|Tags: , , |0 Comments

On the eve of NAB 2016

Despite the fact that our industry trade shows are big business brands in their own right, they are also annual technological milestones that herald shifts in trends and approaches in our industry. These gatherings are good indicators of technology trends that are potentially in decline (tape decks anyone?) and equally are stages where the excitement [...]

By | 2016-10-29T08:54:40+00:00 April 15th, 2016|Categories: Broadcast Engineering, NAB, NAB2016, News, Opinion, root6|Tags: , , |0 Comments

Ultra High Definition with High Dynamic Range (UHD + HDR)

Ultra high definition (UHD) is poised to be the next big industry change as we move away from our existing high definition (HD) broadcast chain. From the outset it was easy to see UHD has more longevity than stereoscopic (3D) ever did. That said, it's going to take sometime and is more complex than any of the past picture [...]

A review of Colour Reproduction in Electronic Imaging Systems: Photography, Television, Cinematography by Michael S. Tooms

All of my colourimetry comes from doing it; my theoretical knowledge isn't that great as I didn't study it at university and the colour training at the Beeb, although entirely appropriate to what a TV engineer needs was just that; TV-centric. Over the last ten years I would credit the following industry colleagues for widening [...]

By | 2016-10-29T08:54:41+00:00 April 5th, 2016|Categories: Broadcast Engineering, tips, Training|Tags: |0 Comments

Tech Breakfast – “Encryption” Seminar Recording

Starting with the fundamentals of cryptography (difference between symmetric & public-key etc), Phil goes over the encryption techniques used in the Enigma machine (with a genuine, working example) through to HDCP and the other forms of content protection used in our industry: Symmetric vs Public-key crypto Examples – DES, AES/Rijndael etc HDCP, Blueray and the [...]

By | 2016-04-13T08:42:55+00:00 March 24th, 2016|Categories: Broadcast Engineering, Podcasts, Training|Tags: , |0 Comments

Shooting and editing HDR via Avid using CLog gamma

We've got BVE2016 coming up and one of the things root6 will be showing is an HDR workflow via Media Composer using Canon monitors. HDR is still a bit of a crap-shoot as far as standardisation is concerned with the BBC/NHK system, Dolby Vision, Sony's SLog3 and Canon's camera-native CLog. The principle of using an [...]

By | 2016-10-29T08:54:42+00:00 February 12th, 2016|Categories: Broadcast Engineering, Products, tips|Tags: , , , |0 Comments

Audio over cat6a cable?

My podcast-partner in crime, the mighty Hugh Waters asked me how often I run audio signals over twisted-pair data cable in media facility builds. Has has a customer who is eager to do it this way. I’ve done it a few times and it’s fine with a few considerations. Earthing is still important and since [...]

By | 2016-10-29T08:54:42+00:00 February 8th, 2016|Categories: Broadcast Engineering, tips|Tags: |0 Comments

Barnfind integration with third party control panels

Barnfind are one of the products I'm responsible for at Root6 and I love them for their forward looking attitude and the fact they embrace open standards; if you see an SFP hole or a BNC connector you know that it will work with any other manufacturers (unlike Evertz who re-define the standard and put [...]

By | 2016-10-29T08:54:42+00:00 February 8th, 2016|Categories: Broadcast Engineering, Products, Support|Tags: , , |0 Comments

Gotchas with updating firmware over RS232

I've recently been upgrading Boland BVB25 OLED monitors over their RS232 serial ports; aside from needing a USB/serial adaptor (I use the Keyspan which mimics an old PC serial UART) you also need a null-modem cable (i.e. where Tx and Rx are swapped over). You can tell if a null-modem cable is required by the [...]

By | 2016-10-29T08:54:42+00:00 January 11th, 2016|Categories: Broadcast Engineering, Podcasts, tips|Tags: , , |0 Comments

4k and UHD cabling and signal standards

I’ve had to dig into signal transport for 4k/UHD over the last week or so. Essentially I have a test-signal generator (SRI Visualizer TG100) running at a maximum raster of 4096×2160 at a maximum of 25 progressive frames/sec (and only 4:2:2 colour sampling; Y, Cr, Cb) with a 6G single-link output (so really 4 x [...]

By | 2016-10-29T08:54:43+00:00 December 14th, 2015|Categories: Broadcast Engineering|Tags: , , , |0 Comments

Canon’s 4k Native IPS television monitors

I had an excellent half day with Canon’s UK imaging display guys to look at their DP-V series 4k native displays. To my shame I had assumed that they would be like the HP Dreamcolor or Eizo ColorEdge series monitors which are advertised as being suitable for film and TV work but as I’ve often [...]

By | 2016-10-29T08:54:43+00:00 December 4th, 2015|Categories: Broadcast Engineering, Products|Tags: , , , , , |0 Comments

Fibre infrastructure and CWDM developments

The most interesting things I saw at IBC last week were not software updates or new 4k workflow tools (save us from "workflow tools"!) but some developments from our good friends at Barnfind. Their current CWDM products top-out at 18-wavelengths on a single fibre, and if you need to pack more signals (synchronous broadcast; HD/SDi, [...]

By | 2016-10-29T08:54:44+00:00 October 8th, 2015|Categories: Broadcast Engineering, Products|Tags: , , |0 Comments

Typical edit suite monitor calibration; some traps for young players

I spent the morning in a very typical Soho edit room with a JVC DT-V24-series LED-backlit LCD as the "front of house" monitor and an LG LED-backlit LCD as the client display. It's quite easy to get the JVC looking right - BBC style 6504k for Rec.709; I've waffled on about this a lot in [...]

By | 2016-10-29T08:54:45+00:00 August 7th, 2015|Categories: Broadcast Engineering, Support, tips|Tags: , |0 Comments

Colourimetry and Boland broadcast monitors

This morning I did a presentation for the root6 Tech Breakfast series entitled “Colourimetry, Calibration and Monitoring” - You can grab my notes here This is all to promote the new US manufacturer we've taken on; for my money their BVB25-OL ED monitor is the best TV display for under £10k.

By | 2016-10-29T08:54:47+00:00 July 20th, 2015|Categories: Broadcast Engineering, Events, Products|Tags: , , |0 Comments

Tech Breakfast: “Colourimetry, Calibration & Monitoring”

Wed 15th July, 8:30 for 9am, Soho Screening Rooms This month, our Broadcast Engineering guru, Phil Crawley, shares some of the knowledge he’s gained from calibrating monitors over the last 25 years, explores some of the latest tools and demonstrates Boland’s OLED grading monitor. As always the breakfast is free to attend but spaces are limited, [...]

By | 2016-10-29T08:54:48+00:00 June 16th, 2015|Categories: Broadcast Engineering, Events, News|Tags: , , , , , |2 Comments

Earth Leakage – in water!

I recently bought an Agilent U1191A clamp-meter. This is a piece of test equipment that can measure current flowing in a conductor without having to break the circuit (how you would if all you had was a digital multimeter). The jaws physically couple around the conductor in question and by induction you can measure the [...]

By | 2016-10-29T08:54:53+00:00 January 12th, 2015|Categories: Broadcast Engineering, Support|Tags: , |0 Comments

Why do manufactuers over-specify power requirements for broadcast equipment?

It's actually a rhetorical question and I'm glad they do. Most of the time I have to tell a customers' electrician and air-con contractor how much power (and hence how much heat) the machine room will be pulling/genarating. Most customers refuse to believe that 99.9% of the electrical power entering a server room/TV MCR leaves [...]

By | 2016-10-29T08:54:53+00:00 January 12th, 2015|Categories: Broadcast Engineering, tips|Tags: , |0 Comments

Near synchronous video over UDP/IP with Sony's NXL-IP55

Just about the only things that caught my eye at the recent Beyond HD Masters day at Bafta was Sony's IP Live system. This is a single product called the NXL-IP55 which puts four 1080i 4:2:2 signals over a gigabit connection - so modest 6:1 compression with a well-defined single field of latency. The camera [...]

By | 2016-10-29T08:54:54+00:00 November 19th, 2014|Categories: Broadcast Engineering, Products|Tags: , , , |0 Comments

What’s the best setting for Gamma with Rec.709 video?

 I've been calibrating TV displays for around twenty-five years and have always leaned on the BBC practice of setting peak white at 80Cd/m2 and the white point at 6504k. For all the decades of standard definition work a gamma of 2.2 has been used. This is required because television cameras don't have a linear transfer [...]

By | 2016-10-29T08:54:55+00:00 November 19th, 2014|Categories: Broadcast Engineering, tips|Tags: , , |2 Comments

Perceptual video quality and compression – PSNR measurements

Compression is a fact of life, there have only been two production VTRs that stored uncompressed video – D1 and D5; they are no longer used because they were both SD (and D1 was only eight-bit video). So, the vast majority of the material we handle is compressed and so there should be a way [...]

By | 2016-10-29T08:54:55+00:00 November 19th, 2014|Categories: Broadcast Engineering, Opinion, tips|Tags: , , , |0 Comments

root6 Appointed Reseller for Barnfind Technologies

root6 has added Barnfind to its portfolio of products designed to provide more productive operation in file-based creative enterprises. A Norwegian company, Barnfind Technologies AS has developed BarnOne, a signal-neutral platform that offers many functions and supports numerous different signal formats in one frame. This unique approach saves customers valuable rack space, power consumption and [...]

By | 2016-10-29T08:54:55+00:00 October 21st, 2014|Categories: Broadcast Engineering, News, Press Release, Products|Tags: |0 Comments

Barnfind’s high-speed data router and optical CWDM for TV infrastructure

Root6’s SI dept spent a few days last week in Norway as the guest of Barnfind in Sandefjord. Norway seems to be a lovely country if not a tad expensive (£24 for a round of three pints).  Barnfind are a small company whose engineers used to be with Nevion – you’ve probably come across their [...]

By | 2017-01-12T10:42:15+00:00 August 27th, 2014|Categories: Broadcast Engineering, Products|Tags: , , , , |1 Comment

Tech Breakfast – "Cat8 is Coming" & "The Challenges of Modern Picture Quality Analysis"

8:30 for 9am, Wed 1st Oct, Soho Screening Rooms root6′s Broadcast Engineering gurus, Phil Crawley and Matt Ward, explore some of the hot topics of the moment. Matt takes a look at the new Cat 8 standard whilst Phil discusses the challenges of modern picture quality analysis and demonstrates the TG-100 SRI Visualiser, which can [...]

By | 2016-10-29T08:54:58+00:00 August 20th, 2014|Categories: Broadcast Engineering, Events, News|Tags: , , , , , |0 Comments

MPEG transport stream corruption; effect on pictures

I've been running training at the MET's video forensics lab soon and part of it is explaining how DCT-based compression works and particularly the effects of corruption on long-GOP MPEG transport streams as delivered in DVB-MUXes. One of the illustration videos is below. Three clips; each with a momentary corruption to the data stream and [...]

By | 2015-02-23T16:22:43+00:00 August 16th, 2014|Categories: Broadcast Engineering|0 Comments