McCarter & English, LLP
Phase control signal generation device, phase control signal generation method, and phase control signal generation program
A phase control signal generation device generating a phase control signal for each of frequency bands for an audio signal converted into a frequency domain, the phase control signal generation device comprising: a setting change means that is able to change setting of a propagation delay time for each of predetermined frequency bands; a difference obtaining means that obtains a difference between propagation delay times before and after setting change; an updating means that updates a phase control amount of the frequency band for which the propagation delay time is changed, based on the obtained difference; and a phase control signal generating means that generates a phase control signal of each frequency band by performing a smoothing process for the phase control amount in a frequency domain using the updated phase control amount.
CLARION CO., LTD.
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Yasuhiro Kazutomo Hideyuki Takatomi Takeshi Tetsuo
Fujita Fukue Morita Kumagai Hashimoto Watanabe