3D Audio Coding Approach Based on Spatial Perception Features  

作　　者：Cheng Yang Ruimin Hu Xiaochen Wang Yuhong Yang Maosheng Zhang Wei Chen 

机构地区：[1]National Engineering Research Center for Multimedia Sottware, School of Computer Science, Wuhan University, Wuhan 430072, China [2]School of Physics and Electronic Science, Guizhou Normal University, Guiyang, 550001, China [3]Hubci Key Laboratory of Multimedia and Network Communication Engineering, Wuhan University, Wuhan 430072, China [4]Collaborative Innovation Center of Geospatial Technology, Wuhan 430079, China

出　　处：《China Communications》2017年第11期126-140,共15页中国通信（英文版）

基　　金：supported by National High Technology Research and Development Program of China (863 Program, No. 2015AA016306);National Nature Science Foundation of China (No. 61662010, 61231015, 61471271, 61761044, 61762005)

摘　　要：A new three-dimensional(3D) audio coding approach is presented to improve the spatial perceptual quality of 3D audio. Different from other audio coding approaches, the distance side information is also quantified, and the non-uniform perceptual quantization is proposed based on the spatial perception features of the human auditory system, which is named as concentric spheres spatial quantization(CSSQ) method. Comparison results were presented, which showed that a better distance perceptual quality of 3D audio can be enhanced by 5.7%~8.8% through extracting and coding the distance side information comparing with the directional audio coding, and the bit rate of our coding method is decreased of 8.07% comparing with the spatial squeeze surround audio coding.A new three-dimensional（3D） audio coding approach is presented to improve the spatial perceptual quality of 3D audio. Different from other audio coding approaches, the distance side information is also quantified, and the non-uniform perceptual quantization is proposed based on the spatial perception features of the human auditory system, which is named as concentric spheres spatial quantization（CSSQ） method. Comparison results were presented, which showed that a better distance perceptual quality of 3D audio can be enhanced by 5.7%~8.8% through extracting and coding the distance side information comparing with the directional audio coding, and the bit rate of our coding method is decreased of 8.07% comparing with the spatial squeeze surround audio coding.

关 键 词：3D audio coding non-uniform perceptual quantization distance perceptual quality 

分 类 号：TN912.3[电子电信—通信与信息系统]