Monkey SoundPool repeat trying in a Thread.

gistfile1.java

// add on top of gxtkAudio 

class PlaySampleThread extends Thread {
  SoundPool pool;
	gxtkSample sample;
	gxtkAudio.gxtkChannel chan; 
	float lv, rv;
	int loops; 
	
	public PlaySampleThread(SoundPool pool, gxtkSample sample, gxtkAudio.gxtkChannel chan, float lv, float rv, int loops) {
		this.pool = pool;
		this.sample = sample;
		this.chan = chan;
		this.lv = lv;
		this.rv = rv;
		this.loops = loops;
	}
	
	public void run() {
		for( int i=0;i<100;++i ){
			chan.stream=pool.play( sample.sound,lv,rv,0,loops,chan.rate );
			if( chan.stream!=0 ){
				chan.state=1;
				return;
			}
			try{
				Thread.sleep( 100 );
			}catch( java.lang.InterruptedException ex ){
			}
		}
	}
}

// and change gxtkAudio.PlaySample to

	int PlaySample( gxtkSample sample,int channel,int flags ){
		gxtkChannel chan=channels[channel];
		if( chan.stream!=0 ) pool.stop( chan.stream );
		float rv=(chan.pan * .5f + .5f) * chan.volume;
		float lv=chan.volume-rv;
		int loops=(flags&1)!=0 ? -1 : 0;

		new PlaySampleThread(pool, sample, chan, lv, rv, loops).start();
		return 0; 
	}