Echo issue during audio streaming using native RTP lib in Android

I'm working on an Android app, which streams live audio from mic to the vlc using native android RTP lib (using AudioStream and AudioGroup) with in the same room on the speaker(it is conference app, so MIC and Speaker both will be in same room) the problem is, it is creating a lot of ECHO, i know the android have native Android API AcousticEchoCanceler and also NoiseSuppressor API but these APIs work with AudioRecord or MediaRecorder... I need some hep, how can i remove Echo using these native APIs with RTP lib OR Anyone can suggest me any 3rd party lib which streams live audio with built-in Echo canceler..

Here is the link you can see, they are streaming live audio in the same room, without any echo, we are working on the same concept of live streaming...

Thanks in advance...!

via Chebli Mohamed