| 摘要 |
A sound processing device, wherein it is possible to easily obtain any directivity pattern with high accuracy and to acquire necessary high-quality sound. This device (400) is provided with: a directivity synthesis processing unit (410) for generating a first directivity sound pick-up signal, in which a first sound pick-up signal and a second sound pick-up signal are synthesized such that the second sound pick-up signal is delayed relative to the first sound pick-up signal, and for generating a second directivity sound pick-up signal, in which the first sound pick-up signal and the second sound pick-up signal are synthesized such that the first sound pick-up signal is delayed relative to the second sound pick-up signal; a comparison signal calculation unit (440) for generating a non-directivity level signal indicating the level of a signal obtained by adding the first directivity sound pick-up signal and the second directivity sound pick-up signal, and for generating a directivity level signal obtained by adding a first level signal indicating the level of the first directivity sound pick-up signal and a second level signal indicating the level of the second directivity sound pick-up signal; a level comparison unit (451) for acquiring the difference between the levels of the non-directivity level signal and the directivity level signal; and a delay control unit (452) for adjusting the delay amount such that the difference between the levels becomes smaller. |
