Streamline for your best image quality with a virtualized infrastructure
About dbx-tv®While these steps sound great in theory, most integrators will ask themselves at this point: what does typical bandwidth usage look like for these scenarios? To answer this accurately, it's best to start with a typical realworld scenario. Let's look at a convenience store surveillance application.The drive for hosted video lives on4. Now your video source is delivering eventbased content to the server, while streaming high definition and redundant content to a sophisticated, scalable compact storage device anywhere in the user's protected space.Dolby Digital Plus is designed to adapt to the changing demands of future entertainment delivery, while retaining backward compatibility with the existing multichannel home theater systems in use today to deliver high-quality, next-generation surround sound. The performance and flexibility of Dolby Digital Plus is ideal for broadcasters, allowing them to deliver excellent quality while retaining the ability to decode Dolby Digital broadcast bitstreams for compatibility with existing broadcast services. Dolby Digital Plus is also designed to provide consistent and predictable results throughout the broadcast chain to the consumer’s television, ensuring an excellent experience for viewers and a high-efficiency solution for broadcasters. To date, Dolby Digital Plus has been included in more than 375 million products worldwide, including TVs, set-top boxes, Blu-ray Disc™ players, audio/video receivers, and mobile phones.Here's a brief summary of some sample storage calculations (Note: These calculations were made using the Axis Design Tool, which can be found at: http ://www axis. com/products/video/ design_tool/index . htm) :24 fps: 770 kbpsInexpensive, yet powerful NAS devices do their part to be used for onsite high-resolution storage as the user desires. But remember, this isn't just for storing HDTV quality video - it also provides peace-of-mind redundant storage for users who might be hesitant to let go of the idea of a proprietary storage device.TV3 is Catalonia’s main communication medium and the TV network that is one of the most watched by the country’s citizens. It has been a leader in the introduction of digital TV services and the move to broadcasting with Dolby Digital Plus means it is one of the first terrestrial HDTV services in Spain to use the sophisticated audio system.Dolby and the double-D symbol are registered trademarks of Dolby Laboratories. Blu-ray Disc is a trademark of Blu-ray Disc Association. S11/24377 DLB-GHere are some sample 1280x720 (720p) camera bandwidth requirements:1. Set recording resolution in the virtualized video hosting application to receive video content streamed on motion-based or audio-based analytics, or external event triggers, such as door contacts or access control devices connected via I/O ports to the cameras. This event-based recording can be streamed at a reduced rate of images per second, enabling the system to record standard definition video event content efficiently in the cloud.NAS storage required for 1280x720 (72Op) camera (6 fps)=7-9 GB/day24 fps: 2310 kbps3. Add a network attached storage (NAS) device local to the surveillance video source and you can receive high definition streams at higher bit rates without impacting the user's Internet connectivity. This too can be configured to accept HDTV and/or megapixel video on event-based triggers, if the user desires optimum efficiency from the NAS device.1 fps: 2 GB/day“Total Volume”, “Total Sonics”, and “Total Cal” are trademarks of THAT Corporation. dbx-tv and THAT Corporation are registered trademarks. All other trademarks are the property of their respective owners.2. If possible, improve the Internet connectivity to a symmetric connection allowing video to be more efficiently served upstream to the "cloud" application.6 fps: 772 kbps6 fps: 257 kbps12 fps: 452 kbpsFinally, let's not forget about the power and attractiveness that mobile video will have in opting for a hosted solution. GSMA, a trade group for the mobile industry, predicts 15 billion mobile devices will be in use by 2020. Today's security professional approaches and analyzes data in many different ways and the hosting service provider is ready to deliver. As 4G networks continue their growth around the country, the hosting provider will be armed with more power. Smartphones and tablets connect securely to virtual private networks and allow authorized security personnel to monitor video from network cameras, disable card access and lock down doors in real-time. The security team can also search and retrieve archival information on-demand.“We know how important this event is and have been working very closely with TV3 for some time as they have been developing their HD services and building toward the switch to Dolby Digital Plus audio,” said David Blasco, Regional Director, Southern Europe, Dolby Laboratories. “Dolby Digital Plus audio is already mandated in the Spanish digital terrestrial specification, so we are really excited to see TV3 make this move, as it demonstrates their determination to constantly innovate and deliver the best HD audio for this iconic sporting event. Dolby Digital Plus will ensure the most efficient delivery of the cinematic experience for TV3 viewers in their own homes.”THAT Corporation is one of the world’s major audio-technology providers. Founded in 1989 as a spin-off of dbx, Inc., THAT Corporation designs and licenses the dbx-tv line of intellectual property for TV-audio applications and designs and manufactures high-performance analog integrated circuits for professional audio manufacturers. The company is headquartered just outside Boston and has a fabrication facility in Silicon Valley. Visit www.thatcorp.com for more information.6 fps: 2.6 GB/day“As TVs become thinner, and bezel real-estate disappears, speaker size shrinks and audio performance becomes compromised,” said Tyler, President, THAT Corporation (dbx-tv's parent company). “With our audio enhancement algorithms embedded in their TV designs, manufacturers can compensate for small speaker size or acoustically compromised placement to ensure the listening experience measures up to the HD viewing experience.”Earlier this year, TV3 announced it would be showing this year’s Formula 1 Motor Racing Championship in high definition, using Dolby Digital Plus to provide a discrete 5.1 surround sound experience for motor racing fans.Dolby Laboratories (NYSE: DLB) is the global leader in technologies that are essential elements in the best entertainment experiences. Founded in 1965 and best known for high-quality audio and surround sound, Dolby creates innovations that enrich entertainment at the movies, at home, or on the go. For more information about Dolby Laboratories or Dolby technologies, visit www.dolby.com.Work with the end-user to agree on which cameras - it could be all, it could be only one - require a high-resolution recording for identification. If there is a desire to stream better than SVGA quality at reasonably high frame rates (or full frame rate offered by HDTV), you'll need to configure the hosted video solution to work efficiently within that user's connectivity constraints through a few simple steps:About Dolby LaboratoriesAt the conference, Tyler will address growing consumer demand for high-quality audio in the TV-viewing experience, and highlight strategies and solutions that address the challenges of contemporary TV design. Mr. Tyler will provide an overview of dbx-tv's licensed audio product suite – Total Sonics™ for enhancing TV audio, Total Cal™ to automatically calibrate the Total Sonics package to match individual TV models, and Total Volume™ for automatic volume-control management.LONDON -- Dolby Laboratories, Inc. (NYSE: DLB) today announced that Spanish regional public broadcaster Televisió de Catalunya (TV3) will show the UEFA Champions League final with Dolby® Digital Plus audio.“The HD experience is all about the very best quality, and that not only means high-definition pictures but improved, high-definition audio as well,” said Amadeu Gasso, TV3’s Head of Projects. “TV3 viewers demand quality sound, especially if they have invested in a home theater system, and the UEFA Champions League final is the perfect event to match superb HD images with cinematic Dolby 5.1 audio.”Still, some in the physical security profession may be hesitant to consider a hosted video solution because of the misconception that HDTV and megapixel resolution video consume too much bandwidth. In reality, the IT mobility of cloud-based managed video and digital multimedia not only can deliver HDTV content but can help manage high resolution video sources and storage located at the secured facility. The flexibility is here today but it does require understanding the user's needs and properly configuring the hosted system.2011 began with a strong, evolutionary consumer trend of bringing virtualized High Definition content directly to our IPTV, gaming console, personal computer and mobile platforms. Virtual desktops empower users by accessing personal information from any remote server, aka 'the cloud.' This same technology delivery platform, namely managed video solutions, is bringing virtualized surveillance to the security professional.12 fps: 13.9 GB/dayThe above calculations are based on continuous viewing and recording. When we consider event recording, our storage and bandwidth can often be in the range of 10 to 20 percent of these figures, permitting, for example, four cameras in a typical convenience store to require approximately 220 kbps total bandwidth (to the cloud) of event recording at 640x480 resolution and 6 fps; and 31.6 GB per day of local NAS 1280x720 (720p) storage. Since NAS devices today offer 2TB of storage starting at less than $250.00, integrators can create this efficient solution for the end-user.MILFORD, Mass. -- dbx-tv®, a leading provider of audio intellectual property to the television industry, today announced Leslie Tyler, President, will present “Using TV Audio to Enhance TV Viewing” to an audience of world-leading TV manufacturers at the 2011 DisplaySearch China FPD & HDTV Conference in Shenzhen, China.Today's successful service provider not only recognizes the need to participate in this evolutionary virtualization of the security industry, but to succeed in it. The hosted service needs to be elastic and meet their customer's long-term security data usage, storage and monitoring needs.Cost-effective, Internet connectivity, coupled with efficient security devices are among the drivers for these hosted video deployments - which for the integrator creates enticing RMR opportunities. Ever-expanding network bandwidths and highly robust Internet security protocols are paving the way while highly-trained hosting service providers are emerging as viable alternatives to traditional in-house control.
Steve Surf aro is the security industry liaison for Axis Communications, Chelmsford, Mass., a global company focused on network video technology.
Author: Surfaro, Steve
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