Increasingly Radio Broadcasters are looking at making the leap from synchronous networks to IP networks for their distribution and contribution links. The advantages of migrating away from synchronous networks to IP networks are numerous but often tempered by a number of concerns regarding the IP transport mechanism including latency, lost packets, packet size, protocol selection, jitter and algorithm selection. This paper will address concerns such as which IP Protocol is most suitable for real time audio delivery, which algorithm is most suited to IP to reduce the affects of the inherent latency on an IP network, how to protect against packet loss and how to deal with the inherent delay involved in packetising audio for delivery over an IP network.
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