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Compression

— Automotive

Porsche working on variable-compression engine

By - April 26, 2015 2 Pictures
While the fashion in high-tech automotive developments might lean towards hybrids and electric vehicles at the moment, there’s still plenty of scope to improve the good old internal combustion engine and one of the holy grails of such development is the creation of a viable variable-compression-ratio system. Now Porsche is working on just such an engine, revealed in the form of a newly-published patent, which will be able to alter its compression ratio. Read More
— Military

DARPA's new 1.8-gigapixel camera is a super high-resolution eye in the sky

By - February 11, 2013 8 Pictures
DARPA recently revealed information on its ARGUS-IS (Autonomous Real-Time Ground Ubiquitous Surveillance Imaging System), a surveillance camera that uses hundreds of smartphone image sensors to record a 1.8 gigapixel image. Designed for use in an unmanned drone (probably an MQ-1 Predator), from an altitude of 20,000 ft (6,100 m) ARGUS can keep a real-time video eye on an area 4.5 miles (7.2 km) across down to a resolution of about six inches (15 cm). Read More
— Digital Cameras

Adobe expands DNG spec with lossy compression … and why it matters to you

By - October 7, 2012 3 Pictures
While the majority of people use their digital cameras to shoot JPEG files, serious photographers swear by RAW, which offers much increased possibilities in post processing. But while RAW images are of a higher quality than their JPEG counterparts, they also take up a lot more space and require more processing power to work with. That's why Adobe has included lossy compression in the recently announced 1.4 specification for its Digital Negative (DNG) RAW file format. Read More
— Telecommunications

MP3-like approach to improve sound quality of telephones and video conferencing

By - May 30, 2011 1 Picture
Engineers from one of the main players responsible for the development of the MP3 codec, the Fraunhofer Institute for Integrated Circuits IIS, have taken a similar approach in an effort to provide telephone calls and video conferences with sound quality approaching that of direct communication, while at the same time cutting delay times that often sees both speakers talking over each other. Their solution is a new audio coding technology called Enhanced Low Delay Advanced Audio Coding – or AAC-ELD – that they claim results in long-distance communications that appear almost as if the participants are sitting across from each other. Read More
— Digital Cameras

Mini Digi takes compact cameras to a new level

By - March 11, 2010 4 Pictures
Japanese manufacturer Green House has just released one of the most compact cameras you're ever likely to see. But you'll have to get in really close because the Mini Digi is so tiny that you might just miss it! Amazingly, it measures 2.5 x 1.8 x 1.2 inches, and weighs just under an ounce. So, for photographers who don't want to take their hefty DSLRs with them all the time, attaching a Mini Digi to your keychain could be a fun alternative. Read More
— Automotive

AVL DiTEST DPM 800: dynamic pressure measurement for motorsport

By - January 6, 2010 3 Pictures
With many auto racing formulae now requiring engines to last many races or a whole season, the new AVL DPM 800 (DPM stands for Dynamic Pressure Measurement) is a gadget many autosport race teams will be keen to get their hands on - it's an in-cylinder pressure transducer that comprises a proprietary Piezo spark plug system with built-in pressure sensor which will enable engine tuning and the accurate gauging of wear rates and potential longevity as the season progresses. The DPM 800 will cost EUR 6550 when it is launched at the Autosport Engineering Show at NEC in Birmingham next week - an absolute bargain compared to what it offers. Read More
— Home Entertainment

Pioneer's new Elite AV receivers target high-end home theater

By - July 6, 2009 1 Picture
Pioneer Electronics US recently announced four new receivers to add to its Elite line-up, bringing greater clarity, detail and response to the high definition audio that Blu-Ray and HD DVD offer. The Elite SC-25 and SC-27 feature a Direct Energy HD Class-D amplifier, employing Pioneer’s ICEPower technology to ensure the levels of performance they expect from HD audio soundtracks. Read More
— Games

OnLive streams HD games to any old PC or Mac

By - March 27, 2009 6 Pictures
Cloud computing is a concept that has been touted as the next generation technology for some time and with major players such as Google, Microsoft and Apple now heartily embracing the idea it seems its time has finally come. While the advantages of the approach have long been recognized, the Internet speeds required to make it feasible have meant that cloud computing has remained a blip on the horizon until recently. But with high speed connections becoming more and more available around the world companies are rushing to get on the cloud bandwagon lest they be left behind and miss out on the ‘next big thing’. And it’s not just the standard office applications like word processing, spreadsheets and databases that are making the move. The world of gaming could also be headed for a shake up as Palo Alto-based OnLive tests the water in providing on-demand games streaming over a broadband connection. Read More
— Music

Are iPods killing music perception?

By - March 18, 2009 1 Picture
It seems that most people are content with the performance they get from their white iPod earbuds – subpar audio in a convenient package. Has the performance of a humble set of headphones been forgotten in favor of something more compact, and to some more fashionable? Yes is the answer according to an informal study by Stanford Professor of Music, Jonathan Berger, and apparently it doesn't end there - young people actually prefer the “sizzle” sound of MP3’s. Read More
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