To obtain a distanse sense control method and a device for controlling the sense of sound distance.

In the method and device for controlling differences between both ears, a spatial sound reproducing device having a speaker 12, sound sources 11 arranged close to right and left ears and an adaptive filter 24 for estimating a transmission function from the speaker 12 to each of the right and left ears and capable of supplying signals to which the transmission function is applied to the sound source 11 is used for branching an input acoustic signal 51 into 1st and 2nd channels. Then the signal 5-I is branched into 1st, 2nd and 3rd routes and an indirect sound acoustic signal is applied to the signal 51 and branched to the 2nd and 3rd routes. The phase of the signal 51 is inverted in the 1st route the input signal 51 is delayed and attenuated in the 2nd and 3rd routes, output signal from these three routes are added the transmission function estimated by the filter 24 is applied to the added signal to control an intensity rate between the input signal 51 and the indirect sound.