| 摘要 |
A reproduction apparatus includes an acoustic signal generator which generates an acoustic signal, first sound pressure detection points located at N points in an audible area to detect sound pressure signals, N+1 control sound wave generators each of which emits a sound wave based on the acoustic signal to generate a control sound, second sound pressure detection points located at M points in a non-audible area to detect sound pressure signals, M sound wave generators each of which emits a sound wave based on the acoustic signal to generate a main sound, and a controller to control an amplitude and a phase of each of the (N+1) control sound wave generators.
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