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I was recently asked a VERY good question about HDMI - why didn't the Ethernet Channel in HDMI ever seem to be made available for use? HDMI Ethernet Channel (HEC) was introduced over a decade ago (yeah, already!) with v1.3 in 2006. It supports half-duplex 100Base-T, which would be fine even now for most Internet applications — general surfing, streaming, comms, etc. The HDMI spec only makes options available but it’s up to manufacturers to adopt such features and deliver them to us. For some reason HEC simply never took off.   The other frustrating component of this is that HEC also provides the platform for the better of two Audio Return Channel (ARC) ...
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HDMI 2.1 Learning Curve

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HDMI 2.1 is almost upon us. It’s the most technically challenging spec release since the original HDMI 1.0, 15 years ago. Some headline features include video up to 10K 120fps, enhanced ARC for immersive audio, variable refresh rate game mode, and perhaps the most eyebrow raising — a massive 48Gbps data rate. And that’s without compression (which is also coming)! They’re even moving away from 3-channel TMDS to make all this possible, yet retain backwards compatibility. Sounds like Weird Science. But does it really matter yet, you might ask? Is 10K relevant? What is 10K anyway? Obviously something more than 8K, but do we even need to go there yet? Okay ...
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Gates

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Hi All, I have a client with a front gate that no longer works he would like us to repair or replace. I have not done anything with gates before. If we where to replace it do you have any recommendations on manufacturer's? Is there and thing cool you have done with a gate or words of wisdom? Just looking to get my feet wet.  Thanks!
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4K 60 4:4:4 HDR

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4K resolution. 60 frames per second. 4:4:4 chroma subsampling. This trio has been used in combination for some time as a moniker to signify 18Gbps HDMI support. Simply stating ‘18G’ might have been simpler, but hey that’s another story… The complication comes when HDR is added. From a menu where 4K is the main dish, and 60fps, 4:4:4 and HDR are the three side options, we can only choose two. The third comes at extra cost of which we can’t yet afford. That’ll come with HDMI 2.1. Why is it so? 4K60 4:4:4 runs at 17.82Gbps, but only with the default 8-bit BT.709 color. That’s the same color gamut as 720p and 1080i/p. The whole point of HDR is to ...
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In 1973, Robert Metcalfe from New York devised a system of joining multiple endpoint devices on a network, and drew it out as a memo (pictured above). The nowhere-in-particular field between the controller and the endpoints he referred to as " The Ether ". The resulting network was then called the Ethernet . Metcalfe further refined the concept and drafted a paper, presenting it to the National Computer Conference in June 1976. This original concept was based on a 3Mbps network over coaxial cable (how far we've come!). He's since received multiple awards for his incredible work, including the Marconi Prize, the IEEE Medal of Honor, a Fellow Award from the ...
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Referrals. Networking. Those words are big in the business of technology integration – for a lot of firms, they’re the best marketing tools they have. For a growing number of integrators, there’s a preferred method for reaching architects, designers, and builders and keeping that contact list robust and engaged: become a CEDIA Outreach Instructor. “COIs” are trained to teach a variety of CEDIA-specific courses to those in the building trades, courses that focus on everything from security solutions to home theater installations. They’re anecdotal, solution-based courses – not “how-to” sessions but a window into the value that tech will provide to any project. ...
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INDIANAPOLIS (April 27, 2017) - CEDIA has announced that the 2017 CEDIA Size and Scope of the Residential Electronic Systems Market survey is open. The annual survey, which takes less than twenty minutes to complete, reports on vital market trends including: the estimated number of companies installing industry products, the size of the industry workforce, the total economic value of the industry, and much more. "This research provides an important strategic snapshot of where the industry currently sits and where it is going, providing participants with the insights they need to move their business forward," said Vin Bruno, CEDIA CEO. Dave Pedigo, VP of ...
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This episode features two new CEDIA® staffers, David Meyer and Walt Zerbe. Meyer's a video expert and Zerbe has quite the audio knowledge, so CEDIA's Dave Pedigo and Ed Wenck picked the gents' brains on recent sound and vision advances in home theater. OLED, QLED, HDR, name it -- the roundtable tackles a bunch of topics in this freewheeling discussion
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What do we want? Qualified people! When do we need them? Now! That chant has been heard non-stop for a few years now, and ESPA is out there doing what we can to help. More certifications than ever, more schools than ever. Four new training partners in the first quarter of 2017. And a few of our newer partners really stand out, because they are either including a solid foundation in networking in their training ,or adding  electronic systems integration content to their existing IT program. The perfect combination of skills. The perfect new hire! We are now building in this idea by rolling out a concerted effort to get this message to IT students, at both the ...
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Hello,   This is Edward from BENNIC - a professional acoustic components manufacturer since 1978.   We produce a wide range of acoustic components such as, bi-polar capacitor , plastic film capacitors , inductors , power resistors , binding posts and terminal cup for speaker boxes. We also provide crossover network assembly service and in order to assured the quality and fast delivery, we used most of the components which we produced by ourselves, and in compliance with ISO9001, ISO14001, ISO/TS16949, ROHS and REACH.   Our products are widely used by many major high-end loudspeaker companies for both of home and car audios fields. ...
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HDMI & Super MHL Q&A

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In September 2016 I received a fantastic email from Jay Nihalani, founder and CEO of Sound & Vision in Pune, India - http://www.soundandvision.in/ . He asked if I could answer some questions about HDMI, then proceeded to send me a comprehensive list of 24 questions! Brilliant! It's still relevant today and I thought it's too good to not share, so with his permission here they are, complete with my responses; 1. Which are the companies that manufacture chips for the active HDMI cables other than Redmere, Spectra7 & Invision? A: Redmere morphed into Spectra7 some years back. Redmere dont have anything to support 18Gbps, but Spectra7 do. Their proprietary ...
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These days it's normal to want video & audio content distributed around a house. Wireless doesn't cut it for new generation UHD content, which means long cable runs are required. A product category that's risen in popularity because of its relative ease of installation and distribution infrastructure is HDMI over IP; the home network. The way HDMI over IP works is to decode an HDMI signal, compress it and serialize it into a packetized network format. Various compression methods are available, such as motion JPEG (JPEG 2000) or H.264, also known as AVC (Advanced Video Codec). Some more progressive systems are now starting to use the far more efficient H.265 ...
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As state legislatures across the nation began their 2017 sessions, the CEDIA(r) Government Affairs team got wind of a bill that was to be introduced in Maryland one that could have had serious negative consequences for CEDIA members in that mid-Atlantic state. On February 23, 2017, the following email was sent to members in The Old Line State: Maryland Electrical Licensing Bill Hearing Scheduled for March 6 Maryland House Bill 1368 , a statewide electrical licensing bill that would require a technology integrator to be licensed and meet the requirements of a master electrician, has been introduced and is scheduled for a committee hearing. It is scheduled ...
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Colorful Deep Dive

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There's been a lot of chatter in the AV media about video color bit depth, and how 10-bit is going to give us so much more than 8-bit. But what does it actually mean? Computers talk in binary language, which only has two units; 1 and 0. That doesn't give much choice. We as humans work with ten base numbers (0-9), then string them together in the decimal system to give us an unlimited number of possibilities. We can represent one billion..ish in only 10 digits - eg; 1,073,741,824. A computer can't work in decimal, and nor is it practical for it to work in a linear manner (one billion would literally take one billion bits!). Instead computers work with ...
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Balun Fever

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The term 'balun' has become a pretty much ubiquitous term to describe little boxes that sit at either end of a long cable run, used to convert from one cable type to another; from HDMI to CAT6 and back again, or even HDMI over fiber. Balun is in fact an abbreviation for BALanced to UNbalanced. It's an analog electrical circuit usually comprising a simple, unpowered wire-wound transformer. A balanced cable is one where the two carriers oppose each other but are unaffected by ground (if there's even one there), such as twisted pair cable; CAT5e, CAT6 etc. An unbalanced cable is one in which a single conductor opposes the ground, such as coaxial cable. ...
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More music themed blog titles from Customised. We've gone back to the 80's with this one. Home building and renovating in the UK luxury home market is showing no signs of slowing down. We get dozens of requests for quotes and consultations every month and the same postcodes regularly crop up in parts of Surrey, West London and Norfolk. Since the start of the year we have seen a definite spike in home technology installation requests, it's a great sign of consumer awareness and confidence increasing with technology in homes. Up until twelve months ago we had example average project costings to pass on to interested parties. It was a value that usually drifted ...
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Did you know that there is a takeover happening in your home right now? A technology takeover. Over the past decade the number of devices, gadgets, applications, screens and sensors used in our home life has grown enormously. It is only ten years since Apple launched the iPhone; this game changing mobile device took dozens of previously used gadgets and bundled it into one pocket sized tool to support our busy lifestyles. Since its launch the iPhone and other smartphones have been a gateway product for scores of other hi-tech products to enter our homes. Some provide entertainment and convenience and others bring comfort and security; products like speaker docks, ...
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It's baaaaaack -- CEDIA Tech Council members Peter Aylett, Michael Heiss, Julie Jacobson, and Gordon van Zuiden review ISE 2017 with hosts Dave Pedigo (VP, Emerging Tech at CEDIA) and Ed Wenck (old radio guy we found hanging around looking for a free lunch). SPOILER ALERT: Listen to the end to find out how CEDIA Talks presenters get rock-star-famous. No kidding
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A friend recently posted a picture on Facebook which showed Britain's first computer being delivered to a council office in England. In 1957, Norwich City Council took delivery of an Elliot 405 computer, it was used to process payrolls, perform accountancy duties and stock control. Sixty years of UK business computing has evolved so much that we now find ourselves in a cloud based, BYOD (Bring Your Own Device) era. In UK homes, computers and processors have been used to manage centralised services such as lighting control, heating and ventilation, air-conditioning, audio & visual and security systems. Typically these systems take up an enormous amount of space ...
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A Change Is Gonna Come

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Cost. The biggest barrier to owning a Smart Home. Cost of the equipment, cost of the design, cost of installation and cost of programming smart home systems. It is these high costs that traditionally keeps home automation in only the most expensive UK homes. I'm going to call these the 1% of UK homes. In this fraction of the property market it's often the size of the properties that drives the costs up, more rooms, more lights, more TV's, more sensors and more wires. The other cost factor is the type of systems used to service these buildings. Powerful centralised systems like Crestron, Control4, and Gira, which are capable of controlling and monitoring much ...
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