CAJ | 학술논문

由于使用头相关传递函数重建双耳三维音频的运算复杂度很高，导致无法实现音频的实时三维重建。针对此问题，设计了基于重叠保留法的分帧卷积优化算法，并实现了三维音频实时生成系统，显著降低了三维<br>　　音频的生成时间，实现了三维音频的实时生成与播放。同时增加混响模拟模块模拟声学环境，提高了生成音频的空间感，使听音者对声音定位更加准确。实验结果表明，该系统能零延时生成三维音频，利用CMOS标准进行主观测试显示其空间定位感明显优于对比方法。
유우사용두상관전체함수중건쌍이삼유음빈적운산복잡도흔고，도치무법실현음빈적실시삼유중건。침대차문제，설계료기우중첩보류법적분정권적우화산법，병실현료삼유음빈실시생성계통，현저강저료삼유<br>　　음빈적생성시간，실현료삼유음빈적실시생성여파방。동시증가혼향모의모괴모의성학배경，제고료생성음빈적공간감，사은음자대성음정위경가준학。실험결과표명，해계통능령연시생성삼유음빈，이용CMOS표준진행주관측시현시기공간정위감명현우우대비방법。
The complexity of reproducing binaural 3D audio using head-related transfer function (HRTF) is too high to achieve the real-time generating of 3D audio scene. This paper designs a framing convolution optimization algo-rithm based on over-lapping reservation and implements a 3D audio real-time generating system, which reduces the processing time of generating 3D audio significantly and realizes the real-time generating and playback of 3D audio. This paper also uses reverberation simulation module to simulate acoustic environments in order to enhance spatial sense of the generated audio and improve the accuracy of sound localization in reproduction system. The experimental results demonstrate that the proposed system can generate real-time 3D audio, and subjective tests using the CMOS standard suggest that the spatial localization of the proposed method is better than compared methods.