How to provide quality Streaming Media service with limited bandwidth is an important issue worthy of discussing and it has become the hotspot of streaming media research. As a popular codec method usually used now

VBR (Variable Bit Rate) often causes the streaming media's coding rate to alter remarkably and results in abrupt data transportation

which will affect the service quality significantly. To handle this problem

many flow control techniques have been brought forward. But on the other hand

the conventional technique of flow controlling requires feedbacks from clients and the bandwidth adjusting lags far behind the actual data transportation so that it is unsuitable for the VBR streaming media service based on UDP (User Datagram Protocol). At the same time

it is yet not necessary to support fastidious real time performance for some kinds of streaming media service

like video service. In this paper

we present an active wave filtering and stream stabilizing model based on the feature of data transportation velocity. Because it does not require feedbacks from clients

it not only reduces the abrupt data transportation caused by VBR but also provides steady streaming data transportation service by the means of filtering and stabilizing.