Patent ID: 9136814
Filing Date: 2015-09-15
Classification: G01D,H03G,H04R

Abstract:
1. An equalization pre-processing method, adapted for characterizing a second sound receptor unit in a sound receiving system based on knowing the internal structure parameters of a first sound receptor unit, the method comprising: establishing a first equivalent circuit model corresponding to the first sound receptor unit according to the internal structure parameters of the first sound receptor unit; acquiring a first sensitivity response of the first sound receptor unit and a second sensitivity response of the second sound receptor unit through measurement; equalizing the second sensitivity response according to the first sensitivity response and obtaining the sensitivity differences between the first sensitivity response and the second sensitivity response; obtaining a third sensitivity response associated with the first sound receptor unit in the sound receiving system through simulating the first equivalent circuit model; compensating the third sensitivity response obtained from simulation according to the sensitivity differences between the first sensitivity response and the second sensitivity response; and obtaining a fourth sensitivity response corresponding to the second sound receptor unit in the sound receiving system for characterizing the second sound receptor unit in the sound receiving system; wherein establishing the first equivalent circuit model, acquiring the first sensitivity response and the second sensitivity response, equalizing the second sensitivity response according to the first sensitivity response and obtaining the sensitivity differences, obtaining the third sensitivity response compensating the third sensitivity response, and obtaining the fourth sensitivity response are implemented by a processor.