Active acoustic ripple cancellation for MEMS mirrors

A display system comprising:

• an optical reflector;
• and
• a display controller communicatively coupled to the optical reflector and to one or more microphones, the display controller configured to:
• determine, via the one or more microphones, that one or more frequency components of an incoming sound exceed a defined volume threshold, the one or more frequency components corresponding to one or more resonant frequencies of the optical reflector;
• based on the determination that the one or more frequency components exceed the defined volume threshold, measure a magnitude and phase of one or more harmonic motions of the optical reflector;
• and
• based at least in part on the measured magnitude and/or phase of the one or more harmonic motions, generate sound waves that destructively interfere with at least one frequency component of the one or more frequency components.