A non-transitory computer readable medium stores computer executable instructions which, when executed by at least one processor, cause the at least one processor to acquire a speech signal of speech of a user; perform a signal processing on the speech signal to acquire at least one feature of the speech of the user; and control display of information, related to each of one or more first candidate converters having a feature corresponding to the at least one feature, to present the one or more first candidate converters for selection by the user.