Embodiments of the present invention provide a method and a system for
generating optimal feedforward signal for the seek control to suppress
the RTV (Random Transient Vibrations) and the seek acoustic noise. One
aspect is directed to a method of providing a revised feedforward signal
using an adaptive filter in a feedforward control system for controlling
an actuator to move a head to seek a track and settle on the track of a
disk in a disk drive apparatus. The method comprises performing a seek
operation of the head using an initial feedforward signal; obtaining an
error signal at settling after performing the seek operation; determining
filter characteristics of the adaptive filter to minimize the error
signal; and implementing the adaptive filter having the determined filter
characteristics in the feedforward control system to produce a revised
feedforward signal for controlling the actuator for moving the head in
the disk drive apparatus.