HaiVision Systems, a vendor of high-performance H.264 HD and SD video codecs, and Zixi LLC, a supplier of HD Instant Video Delivery Network (IVDN) products said they have teamed up to provide what they call “the first successful broadcast of live HD video over the public Internet.” (In other words, no special enhanced spectrum was used for the online feed.)
The broadcasts originated from Columbia University Medical Center in New York City to remote studio facilities in the U.S. and, simultaneously, to other sites around the world. HaiVision said viewers were able to access the streaming 1080i video using either a typical Web browser or an IP set-top box.
The HD broadcasts were transmitted in real time via the Internet using Zixi’s IVDN platform which recovers (and re-orders) “lost packets” immediately—providing instant-start, continuous delivery of video to set-top boxes and PCs without any noticeable video degradation.
The 1080i feeds were transmitted between the medical center and convention centers using HaiVision’s ultra-low-latency Mako-HD H.264 HD codecs. At other locations worldwide, audiences simultaneously viewed the transmission using software decoders on standard computers. (Internet services at both ends were general-purpose ISP connections with streaming serviced by Zixi IVDN.)
Video at the receiving studio delivered via Zixi IVDN, and the signal received both by satellite and dedicated fiber-optics were indistinguishable in a side-by-side comparison, according to the firms.
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