One problem faced by those of us who are streaming media over the Internet is that the more successful you are, the more bandwidth you consume. It's as if the electric bill on your transmitter went up incrementally with each new listener or viewer. As streaming grows in popularity among listeners -- and it has been growing rapidly -- this problem is going to increase proportionately. There are technologies to mitigate this, such as IP multicast, and the NAB Radio TechCheck publication has carried a report [PDF] on an interesting new one called gridcasting developed by the Danish company, Octoshape. The European Technical Review has published an article on a test using the Prix Europa concert:
... For the full copy of the EBU Technical Review article on the Prix Europa concert stream, go to the EBU Web page at www.ebu.ch/en/technical/trev/trev_308-prix_europa.pdf. An article on Gridcasting, also published in the EBU Technical Review, is at www.octoshape.com/press/pdf/papers/0507ebu.pdf. Another article about Gridcasting, presented at the 2006 IBC conference, is available at www.octoshape.com/press/pdf/papers/IBC_paper.pdf.
--Dennis
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