Articles
Back to Basics with IP Video Production
Michael Waidson Its difficult to attend an industry tradeshow or read a publication without seeing discussions about the technological changes that will impact the broadcast market in upcoming years. These changes include 4K/UHDTV, High Dynamic Range and High Frame Rate video but the transition to an all IP video workflow is regarded as a disruptive technology change that will demand new skill sets and infrastructure.
Tags: iss127 | tek | tektronix | ip | test | Michael Waidson
Submitted by Michael Waidson Read this article in the tv-bay digital magazine
Cause and effect of jitter in an operational IP video network
Paul Robinson What are the advantages of moving to an IP infrastructure?
Tags: iss119 | ip | tektronix | cots | jitter | Paul Robinson
Submitted by Paul Robinson Read this article in the tv-bay digital magazine
Taming the 12Gbs beast and how to T&M it with the Qx
Phillip Adams The one thing you can say about working in the broadcast industry is that there isnt time to get bored! Hesitant, perhaps even frightened these days might be more accurate but bored, certainly not. Such is the case with the planned UHDTV roll out and the need for customers to invest in technology which will adapt as the technologies, proposals and standards evolve. For a company like PHABRIX the hiatus created by customers deciding where to place their investment money has produced a significant opportunity but also a problem: How to meet the evolving requirements of an industry with a suitably forward looking adaptable product available now!
Tags: iss107 | t&m | vidoe payloads | uhdtv | eye | phabrix | qx | agilent | tektronix | Phillip Adams
Submitted by Phillip Adams Read this article in the tv-bay digital magazine
Why test and measurement is for real life, not just for engineers
Will Strauss# Thanks to its long-standing association with virtually incomprehensible acronyms, dark machine rooms and (lets face it) engineers with unruly beards, the subject of Test and Measurement (T&M) always gets a bit of bum rap.
Tags: iss079 | test and measurement | monitors | guide | review | leader lv5220 | tvlogic vfm-056w | swit s1070f | hd sdi | waveform | portable | hamlet | ikan | tektronix | marshall | Will Strauss#
Submitted by Will Strauss# Read this article in the tv-bay digital magazine
Ask the experts: Content readiness in time-deferred workflows
Sudeep Bose When focusing on the actual content itself, rather than the service, network or other components, the key is the readiness of content to be used. For instance, a piece of media must be syntactically correct in order to ensure that it causes no downstream issues in the workflow and that it will play and decode properly.
Tags: iss079 | content readiness | file based | workflow | time deferred | digital content | tektronix | quality | Sudeep Bose
Submitted by Sudeep Bose Read this article in the tv-bay digital magazine
Handheld T and M the broadcast emergency service
Will Strauss# Test and Measurement. Shudder. Like Health and Safety, Bus and Replacement Service or Keith and Orville its 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.
Tags: iss067 | HD | 3G | 3D | IT | IP | fibre | phabrix sxa | harrix hd star | hamlet microflex | leader lv5380 | datavideo vs-100 | tektronix wfm2200 | Will Strauss#
Submitted by Will Strauss# Read this article in the tv-bay digital magazine
So what is Digital Television. Part 3
N/A Last month Richard described moving forward from analogue to Digital video. This month he covers Gamma and conversion difference¦For full images and tables then its best to click to read in the online magazine.
Tags: iss056 | tektronix | gamma correction | crt response | N/A
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So what is Digital Television. Part 2 - Back to Basics
N/A Last month Richard described the move from analogue to digital television production. This month he goes a little deeper¦
Tags: iss055 | tektronix | digital television | pal | ntsc | secam | N/A
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So what is Digital Television - Part 1
N/A It is tempting to think of digital television as something very scientific and even complex. But when we view the end result, we find something very familiar; something television engineers have sought since the very beginning¦an experience that just keeps getting better and better¦quality video and audio conveying great entertainment, sport, movies, and news to the viewing audience. The only thing new in digital television is the way the message gets from here to there.
Tags: iss054 | tektronix | digital television | back to basics | digital video | signals | N/A
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Whats new in broadcast test and measurement
N/A The test and measurement product category continues to expand as the broadcast business itself diversifies. Notable recent developments include higher resolution displays and a gradually increasing number of analysers which, having detected a fault, endeavour to fix it. No sign at NAB 2011 of any tablet-based test and measurement equipment but perhaps that is only a matter of time.....
Tags: iss054 | eye to eye | test and measurement | agama | cel-soft | dk technologies | dolby | hamlet | leader | murraypro | omnitek | phabrix | pixelmetrix | rohde schwarz | tektronix | vidcheck | N/A
Submitted by N/A Read this article in the tv-bay digital magazine
Eye to Eye: Whats even newer in test and measurement 2010
N/A A year is a long time in broadcast test & measurement, which is just as well because that is when this column previously focused on it. Given the current push to establish 3D as a permanent feature of the broadcast landscape, one might reasonably expect T&M kit designers to be heading along the same road.
Tags: test and measurement | eye to eye | 3d | iss039 | t&m | hamlet | harris | leader | phabrix | prism | rohde schwarz | tektronix | z technology | N/A
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The Real Cost of Calibration
N/A Calibration is the cornerstone of measurement confidence. Badly calibrated instruments are liable to produce measurement errors which can then propagate throughout an enterprise and even to the end-users product¦ and beyond! This can have a detrimental effect on a companys reputation and profits, and could even have legal implications.
Tags: tektronix | test and measurement | calibration | iss039 | N/A
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A Guide to Testing IPTV: Technologies and Challenges Part 4
N/A In Parts 1-3 we introduced IPTV as an emerging broadcast technology, and discussed some of the technical challenges involved in successful delivery of IPTV services. We saw how the complexity of IPTV networks and the trade-offs in technology types can provide further challenges in delivering high QoS and QoE in IPTV delivery. In this part we will begin to explore how to test IPTV systems
Tags: iptv | tektronix | iss034 | iptv network | test and measurement | ip pathway | multi-layer monitoring | N/A
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A Guide to Testing IPTV: Technologies and Challenges Part 3
N/A In parts 1 and 2 we gave a background to IPTV, and discussed some of the challenges faced by IPTV service providers. We focused particularly on the importance of Quality of Service and Quality of Experience, and the interrelationship between the two.
Tags: tektronix | iss033 | iptv | test and measurement | network architecture | video compression | mpeg-2 encoding | h.264 | avc | vc-1 | ip network | transmission | rtp | N/A
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Guide to Testing IPTV Technologies and Challenges Part 2
N/A In this part we will begin to examine some of the challenges faced by IPTV service providers, and the importance of Quality of Service and Quality of Experience.
Tags: Tektronix | iptv | iss032 | qos | qoe | test and measurement | N/A
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A Guide to Testing IPTV: Technologies and Challenges Part 1
N/A Before we examine the technical challenges however, we should begin by providing a background to IPTV.
Tags: iptv | iss031 | tektronix | triple-play | docsis | qam | fibre | voice | video | data | how iptv works | N/A
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Jargon Buster
N/A IPTV Jargon busting.....
Tags: iptv | jargon | iss031 | tektronix | N/A
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HD Camera Measurements. Getting the most out of your camera, Part 5
N/A 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.
Tags: tektronix | hd camera measurements | iss030 | waveform monitor | vector display | tektronix diamond display | N/A
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NAB 2009 report
N/A By general consensus, this year's NAB Spring Convention, or 'NABshow' as it styles itself, was one of the best ever. Wider aisles and a respectable rather than manic level of attendance made the event, in the words of one exhibitor, 'Business Class'. NAB was always the prototype show where you could sense the directions in which manufacturers were trying to steer the broadcast business. Like it or not, this year's message was loud and clear: 3D HDTV.
Tags: iss030 | nab | nab review | nhk | jvc | camera corps | canon | fujinon | gekko | hitachi | panasonic | polecam | sony | calrec | junger audio | sonifex | tascam | eyeheight | snell | blackmagic | pixelmetrix | tektronix | N/A
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Delivering Superior Quality of Service in IPTV Networks
N/A 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.
Tags: tektronix | iptv | distribution and delivery | network | iss029 | headend | vod | qos | kpi | monitoring | N/A
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HD Camera Measurements. Getting the most out of your camera Part 4
N/A The first parts covered the theory and actual measurements of white shading, setting up colorimetry and exposure as well as greyscale adjustments using a waveform monitor. The objective was to provide a thorough understanding of the functions and benefits of using a waveform monitor when addressing non-linear effects in the camera system to create reproducible conditions and to make full use of the dynamic range of the camera system while maintaining a valid signal for processing in a television environment.
Tags: tektronix | hd camera measurements | iss029 | camera matching | chromadumonde | combi dx-1 | dsc | wfm5000 | N/A
Submitted by N/A Read this article in the tv-bay digital magazine
Eye to Eye. Whats new in test and measurement 2009
N/A 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.
Tags: test and measurement | iss028 | dk-technologies | ev | electronic visuals | hamlet | harris | leader | omnitek | phabrix | rhode and schwarz | tektronix | N/A
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HD Camera Measurements and getting the most out of your camera, Part 3
N/A Parts 1 and 2 covered the theory and actual measurement of white shading, making sure that the camera non-linearities introduced by various different lens systems on a particular camera are compensated. In this issue, Part 3 will investigate setting up colourimetry and exposure as well greyscale adjustments using a waveform monitor.
Tags: iss028 | tektronix | camera measurements | exposure | colourimetry | wfm7120 | wfm5000 | dsc | chromadumonde | grayscale | waveform monitor | N/A
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HD Camera Measurements Getting the most out of your camera, Part 2
N/A In part 1 of this knowledge series we discussed the requirements for making correct white shading measurements in terms of the equipment used. Part 2 now will focus on performing the actual measurements and making sure that we achieve optimum linearity and dynamic range.
Tags: tektronix | hd camera measurements | white shading | white balance | waveform monitor | colourimetry | exposure | grayscale | iss027 | N/A
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HD Camera Measurements and getting the most out of your camera
N/A Image quality all starts with the correct alignment of the camera which is used to capture the scene either on location or in the studio. The conversion of light into electrical signals involves many processes which can affect the quality of the image. Understanding these various adjustments that are necessary, using a suitable camera chart and waveform monitor are critical in ensuring a high quality image and preventing mistakes from occurring mistakes that are costly to fix in the post production process.
Tags: hd camera | test and measurement | iss026 | camera measurements | alignment | engineer | technician | white shading | cameraman | wratten neutral density filter | tektronix | N/A
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