This Supporting Information includes: detailed SNR analysis, additional experimental results of REAL on and details of neural network models for
REAL (Robot Ear Accomplished by Laser). At last, a comparison of the REAL system with a
typical vibration measuring system (Laser Doppler Vibrometers, LDV) is also discussed.
[Use this section to include additional explanatory text such as an extended technical description of results, full details of mathematical models, etc.]