A system and method of audio processing provides enhanced speech recognition. In accordance with the present invention, an undoped polysilicon layer is formed over a semiconductor substrate where a floating gate and a dielectric layer are formed. A window is defined through the worktable of the machine and the flexible ruler goes beneath the window. Upon activation, the motor rotates the wheel, causing the bottom end of the linkage to move in a circular motion and the top end of the linkage to move up and down, thereby mixing the contents in the nail polish bottle.