Mirror device drive control apparatus and projector

A mirror device drive control apparatus adapted to perform drive control of a mirror device having a hysteresis characteristic, comprising:

• a control section configured to perform control of a frequency of a drive signal of the mirror device;
• an abnormality detection section configured to detect abnormal vibration of a movable section of the mirror device based on a detection signal of a detection section detecting a variation in a displacement of the movable section;
• and
• wherein the abnormality detection section detects, in response to change in frequency of the drive signal, a frequency of an envelope included in a waveform of the abnormal vibration of the movable section, and obtains a frequency of the drive signal for performing a restoration process of driving of the mirror device based on the frequency of the drive signal changed and the frequency of the envelope.