Multicast: can you "cancel out" your own audio?

Suppose you set up both a broadcast and receive for a multicast group voice chat:

var groupspec:GroupSpecifier = new GroupSpecifier("myGroup/multicastOne");

groupspec.serverChannelEnabled = true;

groupspec.multicastEnabled = true;

//Broadcast

var mic:Microphone = Microphone.getMicrophone();

bc_stream = new NetStream(nc, groupspec.groupspecWithAuthorizations());

bc_stream.client = this;

bc_stream.attachAudio(mic);

bc_stream.publish("multicast");

//Receive

rc_stream = new NetStream(nc, groupspec.groupspecWithAuthorizations());

rc_stream.client = this;

rc_stream.play("multicast");

video.attachNetStream(rc_stream);

is there any way you can configure "canceling out" your own mic audio coming back to you over the multicast stream?