Method of compensating audio frequency response characteristics in real-time and a sound system using the same

A sound system, comprising:

• a sound reproducing unit to reproduce a sound from a predetermined recording medium;
• an acoustic characteristics processing unit to generate an acoustic characteristics curve of a user based on a minimum perception level of the user with respect to an audible audio frequency band;
• an equalizer to generate filter coefficients that correspond to an acoustic compensation curve of the user based on the acoustic characteristics curve of the user and a predetermined frequency characteristics target curve;
• and
• a digital filter processing unit to compensate frequency response characteristics of the sound that is reproduced by the sound reproducing unit according to the filter coefficients generated by the equalizer.

A sound system, comprising:

• a user acoustics unit to detect acoustic characteristics of a user;
• a sound reproducing unit to reproduce a sound signal;
• and
• a processing unit to modify a frequency response curve of the reproduced sound signal according to the detected acoustic characteristics of the user.

A method of compensating audio frequency response characteristics, the method comprising:

• generating an acoustic characteristics curve by checking levels of each of a plurality of bands in a frequency domain;
• dividing the acoustic characteristics curve into curve bands of a predetermined width and setting a representative sound pressure level for each of the curve bands;
• calculating a difference between the representative sound pressure level of each of the curve bands and preset reference levels;
• and
• setting filter coefficients according to the calculated difference between the representative sound level of each of the curve bands and the preset reference levels.

A computer readable medium containing executable code to compensate audio frequency response characteristics of a sound system in real-time, the medium comprising:

• a first executable code to generate an acoustic characteristics curve of a user based on a minimum perception level of the user with respect to audible audio frequency bandwidths;
• a second executable code to generate an acoustic compensation curve of the user based on the acoustic characteristics curve of the user and a predetermined frequency characteristics target curve;
• and
• a third executable code to compensate the audio frequency response characteristics of a sound based on the acoustic compensation curve of the user.