How to merge two DataSources?

Hi all!
I'm trying to merge 2 dataSource into 1. I'm using createMergingDataSource() method, but it didn't work and I've 2 questions:
- Does this method mix the DataSources or only concatenate it?
- I don't know if I'm doing the right steps. Does anybody know it?
Thanks in advance! :D

Hi Captfoss!
I tried to send two SendStream on the same RTPManager but I didn't work. Because When I receive this stream in other computer the sound is not good. Any idea? I tried to merged the dataSources previously too, but It seem to send only one.
On other way, you said me that I was creating the sendStream bad, because of the index. The process to create a SendStream is this:
outputDS = (DataSource) outputProcessor.getDataOutput();
outputProcessor.start();
sendStream = RTPmanager.createSendStream(outputProcessor.getDataOutput(),0);
sendStream.start(); You told me that I should use the index 1, but when I tried that It throws me a NullPointerException. Any idea??
Thank you very much!:D

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