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Designing a streamnet system – ClearOne Digital Media User Manual

Page 42

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Sources

With a StreamNet Encoder literally any source with analog connectors may be made
available for distributon on the StreamNet network. StreamNet uses a distributed
architecture that allows the hardware and the processing power to be spread out across
a TCP/IP network. This leverages many of the advantages of using TCP/IP over traditional
analog systems. Traditionally, sources are located near the head end controller or additional
cabling is used remotely locate the audio/video source in a conference room or hotel suite.

MediaLinX is not constrained by traditional limitations and can be located anywhere, only
requiring a network connection. Each MediaLinX Encoder is designed to support a single
source so integrators need only to specify the exact number required and can easily add
MediaLinX as the project evolves.

MediaLinX allows for unlimited Audio/Video Sources. Using TCP/IP as a distribution method
also renders limits on the number of audio/video sources obsolete. StreamNet treats
each source as just as another device on the network and using TCP/IP multicast protocol
StreamNet easily manages the network traffic. Each MediaLinX device handles the audio
and video signal encoding, IP stream output, and source control. Beyond a MediaLinX
encoder no additional hardware is required to add a source to the system.

MediaLinX is a versatile audio encoder. Each MediaLinX encoder will accept analog
(Line level or balanced) or digital audio (S/P-DIF) signals. The audio is converted using a
Burr Brown 24-bit/96kHz analog to digital converter. The integrator can adjust the signal
output strength to insure that it is consistent with other sources on the system. Then using
StreamNet™ technology the audio is converted into an uncompressed stream of TCP/IP
packets and made available to the system.

MediaLinX is an ideal SD / HD video encoder. The MediaLinX A/V can encode, in real-time,
both SD and HD video signals into either a compressed (MotionXT) or uncompressed
stream of TCP/IP packets, depending on the speed of the network switch. Using BNC
connectors the MediaLinX accepts H Sync, V Sync, Y/G/CVBS, Pb/B/C and Pr/R signa ls
allowing a variety of source types to work with MediaLinX A/V. Converting to TCP/IP will
insure the audio and video signal does not degrade on its way to the display, even when
cable distances are hundreds or thousands of feet.

pg 42

StreamNet Digital Media and System Design Reference Guide

Designing a StreamNet System,

introduction to required devices