Android implement Haptic vibration by real time sound playing

The goal is to implement haptic vibration by sound playing. The sound file is online url link. Requirement is only one what is to get average power value of sound output real-time. There are many sample what is show wave graph of sound file in GitHub or others. But I need to get amplitude of sound output real time. The sound output meaning is play music which is provided online link. This is algorithm. 1. Play music 2. Get amplitude value of music file playing real-time 3. When I get amplitude value, I will vibrate phone. (This will implement by me)