| 摘要 |
PROBLEM TO BE SOLVED: To provide an acoustic device capable of bringing sound quality when an earphone is worn closer to sound quality when the earphone is not worn without relying on the earphone worn, and a recording medium used in the acoustic device, and an acoustic correction method.SOLUTION: The acoustic device of an embodiment comprises: a storage unit for storing a correction filter having a peak including a maximum point of gain in a plurality of frequency bands to which is added open resonance generated in an external auditory canal when the external auditory canal is released open, in which filter the maximum point of a peak where a frequency at the maximum point is the lowest is higher than the largest maximum point among other maximum points; an acquisition unit for acquiring an acoustic signal; a correction unit for convoluting the correction filter into the acoustic signal to obtain a corrected acoustic signal; and an output unit for outputting the corrected acoustic signal to a speaker. |
