| 摘要 |
The present invention enables a high quality enhanced signal to be obtained, and comprises: a conversion means of converting a mixed signal, wherein a first signal and a signal second are mixed, to a phase component and an amplitude component or a power component of each frequency; a first control means of rotating the phase component of a predetermined frequency; a second control means of correcting the amplitude component or the power component of a predetermined frequency in accordance with the amount of change of the amplitude component or the power component due to the rotation performed by the first control means; and a synthesizing means of synthesizing the phase component rotated by the first control means, and the amplitude component or the power component corrected by the second control means. |
