1. An apparatus comprising: a hardware processor; and a memory which stores instructions to be executed by the hardware processor, wherein in accordance with the instructions executed by the hardware processor, the apparatus performs: obtaining a first captured audio signal captured by a sound capture unit; reducing a noise contained in the first captured audio signal obtained in the obtaining; generating, based on a result of learning using a second captured audio signal obtained before the first captured audio signal, a target sound signal corresponding to the first captured audio signal; determining an output mode to be applied among a plurality of output modes including a first output mode where the target sound signal corresponding to the first captured audio signal generated in the generating is output, and a second output mode where a noise-reduced signal obtained by reducing noise from the first captured audio signal in the reducing is output; and outputting a signal according to the determined output mode determined in the determining.