One of the main features of a low bit rate audio coder is its availability for broadcast over media, mainly over the Internet and mobile networks. It is well known that it is not a trivial problem; there are many troubles that could appear in a multicasting system, mainly due to Internet lack of QoS. This kind of audio traffic has to exist with TCP connections, has to avoid congestion and should require as less changes network equipments as possible. So, in this paper we propose some features to be taken into consideration in the development of a multicast and peer-to-peer communication protocol for scalable parametric audio broadcasting over the Internet with low bit rate and good quality.
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