SOUND REPRODUCTION APPARATUS, A NON-TRANSITORY COMPUTER READABLE MEDIUM, AND A SOUND REPRODUCTION-CORRECTION METHOD

摘要

According to one embodiment, a loudspeaker is provided in a case of an earphone. The case closes an external auditory canal extended from a tympanum of a listener. The earphone has an opening toward the external auditory canal. In an apparatus for generating a sound reproduction to the loudspeaker, a storage unit stores a correction filter in which a maximum of a gain at a frequency band lower than or equal to 10 kHz is larger than a maximum of a gain at a frequency band higher than 10 kHz. An acquisition unit acquires a first sound reproduction signal. A correction unit generates a second sound reproduction signal by convoluting the correction filter with the first sound reproduction signal. An output unit outputs the second sound reproduction signal to the loudspeaker.

主权项

1. An apparatus for generating a sound reproduction to a loudspeaker provided in a case of an earphone, the case closing an external auditory canal extended from a tympanum of a listener, the earphone having an opening toward the external auditory canal, comprising:
a storage unit configured to store a correction filter in which a maximum of a gain at a frequency band lower than or equal to 10 kHz is larger than a maximum of a gain at a frequency band higher than 10 kHz; an acquisition unit configured to acquire a first sound reproduction signal; a correction unit configured to generate a second sound reproduction signal by convoluting the correction filter with the first sound reproduction signal; and an output unit to output the second sound reproduction signal to the loudspeaker.