Android通过摇晃手机的频率来控制声音的频率(3)

 63                     sm.stop();
 64                     isPlaying = false;
 65                 }
 66                 count = - 2;
 67                 force = 0;
 68                 return;
 69             }
 70             last_x = x;
 71             last_y = y;
 72             last_z = z;
 73         }
 74     }
 75
 76
 77     @Override
 78     public void onAccuracyChanged(Sensor sensor, int accuracy) {
 79     }
 80
 81     private void updateAudioRate(float force) {
 82         float rate=0;
 83         float prvAudioRate = 1;
 84         audioCount =audioCount+1;
 85         audioForce=audioForce+force;
 86         if(audioCount>3){
 87             //from 0-50 maps to 0.6 to 2
 88             //rate=audioForce/audioCount*0.03+0.5;
 89             //from 0-50 maps to 1 to 1.8
 90              rate=(float) (audioForce/audioCount*0.012+1.0);
 91             //myAlert(rate);
 92              prvAudioRate=prvAudioRate+(rate-prvAudioRate)/3;
 93             sm.setRate(prvAudioRate);
 94             Log.i(TAG, "sm.setRate=" + prvAudioRate);
 95             audioForce=0;