record audio from seperate netstreams

I have two audio streams on the same client ....i need to record both streams in a single flv file.................can this be done?

the below stub is for visual purposes.

stream0 = new NetStream();

stream0.publish("pub0");

stream0.attachAudio(mic0);

stream1 = new NetStream();

stream0.publish("pub1");

stream0.attach.Audio(mic1);