NOW! 12-13 - Telos

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AXIA | NETWORKING | TECHNOLOGY ARTICLE 102 AoIP IN BROADCAST ENGINEERING bandwidth, AoIP networking over VPLS may become an extremely attractive alternative to today’s point-to-point compressed audio contribution links. As the capacity of the networks grows, a natural trend will be to allocate more bandwidth to audio links, allowing the use of codecs with less aggressive compression. As this bandwidth expansion cycle repeats, we will eventually achieve the ultimate goal of sending linear audio over WAN links. Internet2 is a major initiative led by the research and education community. The Internet2 consortium comprises over 200 US universities, as well as corporations, government agencies, and national research and educational organizations from over 50 countries. The consortium operates an evolving highperformance network that currently spans the US. It provides network capacity for educational, research and community services, as well as actively engages the community in the development of new technologies and Internet applications. The capability of data transport at multi-gigabit rates over long distances is opening doors for advanced networking applications in arts and education, including live music performance over networks, interactive sound production, teaching, and many other areas. A SIDEBAR: usually the discussion goes about how technical limitations narrow the artistic quality. However, it appears that the networking phenomenon that has become an important part of our everyday life is provoking new creative ideas itself. It allows, for example, a group of performers to collaboratively play music on a networked instrument, or exploit network delay or packet jitter as “sound art”. Also, special music is being composed for networks, assuming a certain delay between the participants of the ensemble, in which case the network delay becomes an inseparable part of the musical composition. To ind out more, simply search the Web for “networked music performance”, or related keywords, and read on! WHAT’S NEXT? No one knows the future, but there are, really, three fundamental things we would wish to receive from networking technologies in the coming years: » Complete transparency to the native resolution of the source material » Complete transparency to application functionality » Zero latency (Ok, let’s be realistic – close to zero) The good news is that, although it sometimes may be costly, none of these wishes is fundamentally impossible to realize even within the scope of technologies known today. It may be that, one day, processors will be inexpensive and fast enough to satisfy any fancy application – devices easily handling message rates at the audio sampling frequency and higher. Imagine the globe, wrapped in a lightning-fast ultra-broadband protocol-transparent carrier network – no link congestion ever, network nodes forward the trafic instantly, and the packet overhead is no more an issue. Right now it’s a dream, but certainly not an impossible one. And after that? Well, the electromagnetic ield is slowish. Travelling half the globe in an optical ibre takes about 100ms. Can this be improved? An old legend from the early years of the 21st century was telling: “AoIP will never work.” … Gints Linis Research & Development Project Manager Axia Audio
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TELOS ALLIANCE | COMPANY HISTORY 2
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TELOS ALLIANCE | TABLE OF CONTENTS
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TECHTALK BLOG TELOSALLIANCE.COM/BLO
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TELOS | BROADCAST PHONE SYSTEMS 14
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OMNIA | RADIO PROCESSING 38 OMNIA.1
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OMNIA | RADIO PROCESSING 40 OMNIA.9
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OMNIA | RADIO PROCESSING 42 ONE FM
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OMNIA | RADIO PROCESSING | APPLICAT
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OMNIA | CODED AUDIO 46 OMNIA A/XE T
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OMNIA | CODED AUDIO 48 OMNIA.8x EIG
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OMNIA | CODED AUDIO | APPLICATION A
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NOW! 12-13 - Telos

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