Method for compensating audio frequency in real-time and one of them using sound system.

The method involves generating acoustic characteristic curve of user, based on minimum perception level of user with respect to audible audio frequency bandwidth. A acoustic compensation curve is generated, based on the acoustic characteristic curve and predetermined frequency characteristics target curve. The audio frequency response characteristic of sound is compensated based on the acoustic compensation curve. Independent claims are also included for the following: (1) computer-readable medium storing audio frequency response characteristics compensation program; and (2) sound system.