Patent ID: 8306250

Claim:
A sound reproducing apparatus reproducing sound by using an in-ear earphone, the sound reproducing apparatus comprising: a measurement signal generating section for generating a measurement signal; a signal processing section for, in a state where the in-ear earphone is worn in an ear of a listening person, outputting the measurement signal from the in-ear earphone to an ear canal of the listening person by using a speaker function of the in-ear earphone, and measuring, with the in-ear earphone, the signal reflected by an eardrum of the listening person by using a microphone function of the in-ear earphone; an analysis section for storing a standard ear-canal correction filter measured in advance by using an ear-canal simulator which simulates an ear-canal characteristic, and for obtaining an ear-canal correction filter by analyzing the signal measured by the signal processing section and correcting the standard ear-canal correction filter; and an ear-canal correction filter processing section for, when sound is reproduced from a sound source signal, convolving the sound source signal with the ear-canal correction filter obtained by the analysis section.