This thesis argues about the learning effects on the localization of HRTF based 3-D sound using 8 channel loudspeakers system which creates virtual sound images. This system can realize sound with elevation by 8 channel loudspeakers arranged on the horizontal plane and convolving HRTF, not use high or low mounted loudspeakers. The position of the sound image that the system creates is difficult to perceived, because such as HRTF based sound are unfamiliar. However, after several times of learning process, almost listeners can perceive the position of sound images better. This thesis shows this learning effect for HRTF based 3-D sound system.
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