Development of methodologies for the auralization of moving cars can be of great value for a virtual acoustic experience of urban areas. In this paper¹ a methodology for the auralization of car pass-by based on measured binaural impulse responses (BIRs) is presented. Measured BIRs for different locations in a street canyon were convolved with dry synthesized car signals in which cross-fade windows were applied in order to create a smooth transition between the source positions. Next, the convolved signals are summed in order to create the final car pass-by auralizations. A same/different listening test was carried out in order to investigate if increasing the angular spacing between the discrete source positions affects the perception of the auralizations. The experiments revealed that the auralizations with a larger angular increment (up to ${16}^{\circ }$) are perceptually different to the reference auralizations ($2^{\circ }$ spacing), even in the case where the increment increased by only $2^{\circ }$ compared to the reference. Compared to previous listening experiments of a car pass-by in the scenario without buildings it was shown that the discrimination performance of the subjects was significantly better compared to the test conditions where buildings are absent, where subjects found it very difficult to distinguish differences between auralizations of larger and smaller increment.

开发用于移动汽车可听化的方法对于城市地区的虚拟声学体验具有重要价值。在本文中¹提出了一种基于测量的双耳脉冲响应 (BIR) 的汽车经过听觉化方法。街道峡谷中不同位置的测量 BIR 与干合成汽车信号进行卷积，其中应用了交叉淡入淡出窗口，以在源位置之间创建平滑过渡。接下来，将卷积信号相加以创建最终的汽车经过听觉。进行了相同/不同的听力测试以研究增加离散源位置之间的角间距是否影响可听化的感知。实验表明，具有较大角增量（高达${16}^{\circ }$) 在感知上不同于参考听觉化 ($2^{\circ }$ 间距），即使在增量仅增加的情况下 $2^{\circ }$与参考相比。与之前在没有建筑物的情况下对汽车经过的听力实验相比，结果表明，与没有建筑物的测试条件相比，受试者的辨别性能明显更好，受试者发现很难区分可听化之间的差异越来越大的增量。