An active sound effect generating device includes a tone adjusting unit for setting a plurality of different sub-fundamental frequencies by multiplying a fundamental frequency by coefficients, a first tone signal generating unit, a second tone signal generating unit, a third tone signal generating unit, and a fourth tone signal generating unit for generating tone signals corresponding to the respective sub-fundamental frequencies, and a sound effect signal generating unit for generating a sound effect signal for outputting sound effects from a speaker based on the tone signals.