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With the development of 3D audio, distance rendering in multi-channel spatial audio is becoming a focused issue. In this paper, a sound field reproduction method with distance information based on Ambisonics is proposed. By utilizing Image Method (IM) in Ambisonics, propagating function with distance information, which is expressed via acoustic intensity and Direct-to-Reverberant energy Ratio (DRR),...
An analysis of previously derived Ambisonics decoders shows that the mid-high frequency performance of these decoders has poor agreement with subjective perception, since the optimized decoder coefficients could not well meet the objectives developed by the energy vector, and the polar pattern of speaker feeds is suboptimal. In this paper, new objectives are added to fitness function for the optimal...
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