A sensory feedback method, suitable for feeding back the vibration of the device to the user, implemented by a sensory feedback system including a computing module, a control module and a vibration module for generating vibration as feedback , and contains: (A) The computing module performs Fourier transform on the received vibration data to obtain a frequency spectrum data; (B) The computing module obtains a frequency to be converted and its corresponding amplitude according to the frequency spectrum data; (C) The computing module obtains a duty cycle according to the amplitude corresponding to the frequency to be converted and the maximum amplitude of the frequency spectrum data; (D) The computing module transmits the frequency to be converted and the duty cycle to the control module; (E) The control module generates a pulse width modulation according to the frequency to be converted and the duty cycle, and controls the vibration of the vibration module according to the pulse width modulation. |