Articles
Review: JVC GY-HC900 Camera
Andy McKenzie JVC has a long history of developing relatively low price-point equipment, dating right back to its success in the 1970s with the VHS tape format. JVC products sometimes impact the broadcast mainstream but generally find greatest success in niche market segments such as news production where price and portability take priority over the no-comprise quality and robustness demanded by the leading studio-based and OB content producers.
Tags: iss138 | jvc review | camera | sdhc | sdxc | mpeg-2 | nab | gy-hc900 | Andy McKenzie
Contributing Author Andy McKenzie Click to read or download PDF
Fast-moving productions need multi-cam RF reliability
Darren Bilton Wireless acquisition creates a level of freedom not possible with any other form of filming yet only a decade ago the technique was barely possible. The technology enabling live real-time connections over radio frequencies has advanced leaps and bounds such that there is barely an entertainment, documentary, sports or news format today that doesn’t benefit from at least one link system. That means the demands on the kit continues to rise and includes the need for fail safe multi-camera operation, ease of use and backwards compatibility all within a small, lightweight and budget-friendly package.
Tags: iss133 | boxx tv | wireless | mpeg-4 | multicam | rf | multi-cam | Darren Bilton
Contributing Author Darren Bilton Click to read or download PDF
What is Next for Broadcast
David Schleifer The Broadcast industry is always chasing new technology. Some of that technology is further than it appears to be, and some of it is closer to adoption than it seems. In part, early adopted technology is accelerated because of customer or business demands, and in the case of IP based environments, the driving factors are speed, cost reduction, and flexibility of workflow. To counterbalance these efficiency-based factors is a desire by content creators and customers to see more 4K HDR content on their new big screens. In some ways the push to deliver 4K workflows also makes the need to manage cost/performance even more urgent.
Tags: iss131 | 4k | primestream | hdr | hls | mpeg dash | rtsp | rtmp | streaming | David Schleifer
Contributing Author David Schleifer Click to read or download PDF
Navigating Unfamiliar Territory
Vijay Sagar Vinnakota The traditional broadcast model - where TV networks play content on a linear schedule, and viewers tune in on their TV sets - is under siege. Linear TV is not going away anytime soon, but the model is becoming less and less relevant. Thanks to the rise of OTT services, viewers have become accustomed to watching content when and where they want, on just about any device with an internet connection. For that reason, broadcasters must add an OTT component to their offerings.
Tags: iss124 | cloud | amagi | ott | hls | rtmp | mpeg-dash | yupp tv | netflix | amazon prime | sling tv | Vijay Sagar Vinnakota
Contributing Author Vijay Sagar Vinnakota Click to read
Reducing the costof live production
John Smith Prime time ratings are declining. Viewers can now watch their favourite shows plus new programming where and how they want and it customer loyalty is fast becoming a trait of the past.
Tags: iss117 | medialinks | jpeg2000 | mpeg-2 | md8000 | John Smith
Contributing Author John Smith Click to read
Must haves for wireless camera transmission
John Payne In the days of analog, camera operators were basically tethered to the camera via cable. Additionally, when doing a remote transmission the production required line-of-sight to the receive site or to a satellite. It took a small army and lots of hardware to make an on-location shoot happen.
Tags: iss111 | imt | wireless | transmission | cofdm | ob | mpeg-4 | John Payne
Contributing Author John Payne Click to read
Back to basics: MPEG Dash
David Springall Just when you thought that you had got your head around the different flavours of MPEG, another one comes along. What on earth is MPEG-DASH, and why do we need to care about it?
Tags: iss076 | Yospace | mpeg-dash | streaming | http | mpeg | cdn | bitrate | David Springall
Contributing Author David Springall Click to read
3D for Cinema, ProAV and Events
N/A 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 with the necessary technology for a DCI-compliant player. It was very soon clear that digital cinema technology could sweep aside many of the shortcomings of the film-based 3D presentations, and so open the door to a new 3D era. The digital medium is far more accurate than film could ever be. With no film weave, sparkles, scratches, frame hops or wear, digital cinema delivers, steady, clean, sharp, in-sync presentations that are as good on the 200th run as the first. This is the perfect medium to provide a comfortable and exciting viewing experience for stereoscopic 3D movies.
Tags: iss072 | doremi | 3d | mpeg2 mxf | Digital Cinema Initiatives | dci | N/A
Contributing Author N/A Click to read
Ubiquitous Cloud at IBC
Bob Pank# It was one of those IBCs that was more consolidation than innovation. There wasnt any one product or technology that stood out as a game changer. There was more evidence of 4K being pushed as a more realistic alternative to 8K and more of the must-have 84-inch 4K TV screens.
Tags: iss070 | cloud | ibc 2012 | ibc | harmonic promedia suite | nagra medialive | mpeg-dash | evs | a-frame | Bob Pank#
Contributing Author Bob Pank# Click to read
OTT Monitoring: keeping it simple and useful
N/A OTT is generally understood to mean a technique where the transmission of video to the subscriber is based on the same underlying methods as those currently being used to serve out web pages on the internet today.
Tags: iss069 | bridge technologies | ott | tcp | smoothstream | apple hls | adobe flash | mpeg-dash | N/A
Contributing Author N/A Click to read
An effective strategy for monitoring broadcast audio loudness levels
N/A One of the factors affecting a television viewers satisfaction and overall quality of experience is the consistency of the audio level of the programming. Inconsistent loudness levels between channels or between programming and advertisements can ruin a viewers television watching experience. Over the past several years, erratic audio levels have become such a source of contention among television viewers worldwide that countries have created guidelines and standards designed to minimize audio-level discrepancies.
Tags: iss067 | dtv transport | mpeg2 | mpeg4 transport | triveni digital | N/A
Contributing Author N/A Click to read
Testing mixed signals
N/A 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 engineering bays, OBs and Studios, some of the unique attributes of the PHABRIX Rx range on show at NAB are very much targeted toward broadcast manufacturers. Hence the appeal I hope to the passengers attempting to drink the flight dry once again.
Tags: iss064 | phabrix | video sginal | dolby e | bitstream analysis | mpeg2 | N/A
Contributing Author N/A Click to read
HTML5 and H.264. Friends United....
Kieron Seth# Some technologies like DVD, CD, TV and the PC prove themselves over time. They are practical, flexible, reliable - even universal. Is H.264 one of those magic bullet technologies?
Tags: html5 | h.264 | iss055 | iplayer | nxcam | xdcam-ex | mpeg2 | avccam | Kieron Seth#
Contributing Author Kieron Seth# Click to read
More than meets the eye
N/A Synchronisation is not really a problem using two professional cameras. You just loop through your reference (black) to each and you are all done. In the old days, (well not that long ago), you had to worry about PAL SCH and accurate sync matching
Tags: 3d | syncronisation | GOP mPEG | cel-soft | iss045 | N/A
Contributing Author N/A Click to read
Expanding Video Monitoring to Meet Todays Demands
N/A With the rapid evolution of the industry, new technologies must offer users both value and performance in the short term, as well as the promise of continued utility in the long term.
Tags: wohler | video monitoring | h.264 | mpeg-4 | mpeg-2 | decode | iss043 | N/A
Contributing Author N/A Click to read
A Guide to Testing IPTV: Technologies and Challenges Part 5
N/A 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 get their IPTV systems working.
Tags: iss035 | iptv | probes | test and measurement | jitte | packet loss | ip-mpeg | file based content | N/A
Contributing Author N/A Click to read
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
Contributing Author N/A Click to read
Total Articles: 17 [1-17]