Patent ID: 6850621

Claim:
A three-dimensional sound reproduction apparatus comprising: a sound signal generating device to generate left and right two-channel first sound signals; a first addition device by which the first sound signals are respectively added and outputted as one-channel second sound signals; a sound field effect adding device by which left and right two-channel third sound signals are respectively generated by adding a predetermined three-dimensional sound field effect to the one-channel second sound signals outputted from the first addition device; first crosstalk canceling device by which, when the third sound signals are respectively generated by two adjacently arranged side-by-side loudspeakers positioned in front of a listener, calculation processing is conducted on the third sound signals so that the third sound signals reach left and right ears of the listener without producing crosstalk, and the third sound signals are outputted as left and right two-channel fourth sound signals; a sound image localization device by which two-channel fifth sound signals whose sound images are localized at a virtual point, are generated by conducting filter-processing corresponding to transfer functions of paths from the virtual points in a three-dimensional sound space to the left and right ears of the listener on the first sound signals; a second crosstalk canceling device by which, when the fifth sound signals are respectively generated by the two adjacently arranged side-by-side loudspeakers positioned in front of the listener, calculation processing is conducted on the fifth sound signals so that the fifth sound signals reach the left and right ears of the listener without producing crosstalk, and the fifth sound signals are outputted as left and right two-channel sixth sound signals; and a second addition device by which the fourth sound signals and the sixth sound signals are added to each other in the same channel, and are outputted as left and right two-channel seventh sound signals.