A disk drive is disclosed comprising a disk and a voice coil motor (VCM)
for rotating an actuator arm about a pivot in order to actuate a head
over the disk. During a park operation, a latching characteristic
associated with latching the actuator arm is measured and used to
configure a latching parameter that reduces acoustic noise. The latching
parameter is used to latch the actuator arm by seeking the head to a
latching track, maintaining the head over the latching track for a
predetermined interval, applying an acceleration pulse to the VCM for an
acceleration pulse period, applying a braking pulse to the VCM for a
brake pulse period, and applying a latching current to the VCM.