| 摘要 |
<p>First, while a pair of earphones (110) are worn to both of the ears of a listener, measurement signals generated by a part (101) for generating measurement signals are outputted from the earphones (110). Then, signals reflected by drum membranes back to the earphones (110) (a worn-state signals) are measured and stored in an analytic part (108). Next, while the earphones (110) are not worn to the ears of the listener, signals measured similarly (unworn-state signals) are stored in the analytic part (108). The analytic part (108) calculates an ear canal correction filter on the basis of the difference between the worn-state signals and the unworn-state signals. The calculated ear canal correction filter is convolved into sound source signals by a part (109) for processing the ear canal correction filter.</p> |
