Auditory distance perception is modeled by use of the difference in HRTF due to the parallax angle given by the direction from each ear to the source. This "auditory parallax model" was examined by a psychoacoustic experiment. The results are compared between those for an actual sound source and those for HRTF synthesized as precisely as possible. The relation between the perceived and simulated distance obtained for sound based on the auditory pardax model showed very similar tendencies

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... an actual sound source and the simulated HRTF. These restits indicate that the cues for the distance perception derived by the auditory paraUax model is almost satisfactory for a sound source close to a Estener (within about 1.2 m).