Abstract
The rapid development of 3D film stimulates the requirement for 3D audio. Current 3D audio systems mainly focus on the performance of directional sound image. Multichannel techniques extract binaural cues from channels to represent the directional information with less information about sound distance, which results in the degradation of distance perception quality due to the perceptual difference of direction and distance perception. The distance information is the key to distinct 3D audio from 2D audio. We focus on the auditory distance perception in 3D audio coding. The auditory distance estimation model is established based on the auditory perception of the human ear and imported to the multichannel 3D audio coding system to conduct coding and reproduction of the sound from different directions and distances. Experimental results verified the performance of proposed 3D audio coding based on distance perception.
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