Android: Set power of vibration

Question

I'm currently working on a project, where I'd like to use the vibrating motor situated inside the Android phone.

I'd figured out, that setting the right permission in the manifest and getting an instance of the vibrator:

Vibrator v = (Vibrator) game.getSystemService(Context.VIBRATOR_SERVICE);

would give me access to it. As far as I can see the only methods to make it vibrate are:

public abstract void vibrate (long milliseconds)

and

public abstract void vibrate (long[] pattern, int repeat)

Yet I'd like to have control the power of the vibration:

How can I control the power of the vibration?

Update:

Shouldn't the speed be controlled by varying voltage (or PWMing DC)?

Answer 1

As per the below, I don't believe it's possible to control the intensity. What you could do is use short bursts so the device doesn't vibrate as fast? But I've not tested this personally.

http://developer.android.com/reference/android/os/Vibrator.html and controlling vibration intensity in android phones? is it possible?