JFrog just announced that they'll be shutting down JCenter: https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/

Key dates are:

February 28th: No more submissions will be accepted to Bintray, JCenter May 1st: Bintray, JCenter services will no longer be available

Hence need to migrate to another maven repository like Maven central.

Can't generate two tone frequency at the same time

ZenTone.getInstance().generate(300, 2, 0.5f, toneStoppedListener());

ZenTone.getInstance().generate(500, 2, 0.5f, toneStoppedListener());

What a wonderful library. Very easy to use. kudos

Just a suggestion, can we remove the duration? We will just generate the tune on MotionEvent.ACTION_DOWN and stop the tune until the user unpressed the button (MotionEvent.ACTION_UP).

`  findViewById(R.id.play_tune_button).setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View view, MotionEvent motionEvent) {
            if (motionEvent.getAction() == MotionEvent.ACTION_DOWN){
                Log.w("Pressed", "Button ACTION_DOWN1");               
                generateSound(261);
            }

            else if (motionEvent.getAction() == MotionEvent.ACTION_UP){
                Log.w("Pressed", "Button ACTION_UP1");
                stopSound();
            }
            return false;
        }
    });`