A magnetic head slider for eliminating the fluctuations of contact forces between a magnetic head and a recording disk due to changes in atmospheric pressure or shocks includes a plurality of fluid force generating faces positioned at a plurality of different height levels. The body-building structure is provided with an actuating pulley serving to actuate one or more weighted pulleys of the damping structure in conjunction with a cable. Additionally, the programming instructions are operable to create a voiceprint from the current waveform if the current waveform is of a human voice.