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Acoustical investigation of ambience sound for auditory environments in music performance spaces

机译：音乐表演空间中听觉环境的环境声声学研究

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The optimal array pattern and height for ambience recording were investigated in a performance space through the use of microphone arrays, such as the Hamasaki-square, IRT-Cross, and Omni-square. The optimal array pattern was selected based on evaluations of ambient recorded sounds for subjective attributes such as spaciousness, envelopment, naturalness, balance, stereo compatibility, and overall preference. Then these attributes were compared with acoustical parameters such as clarity (C80), the inter-channel cross-correlation coefficient (ICCC), and the number of peaks (Np) from the measured room impulse responses. In addition, as an assessment of the optimal height of the array, auditory perception was evaluated with the method of paired comparisons. The results showed that the Hamasaki-square, which exhibited lower C80 and ICCC values and higher Np values, was preferred in the subjective listening test. It was also revealed that the listeners' preferred height was characterized by uniformly distributed ambience sounds with low C80 value and small deviation for the early decay time (EDT), sound pressure level (SPL), Np, and C80. (C) 2016 Elsevier Ltd. All rights reserved.
机译：通过使用麦克风阵列（例如Hamasaki广场，IRT交叉和Omni广场）在表演空间中研究了用于录制环境的最佳阵列模式和高度。基于对环境录制声音的评估，以评估主观属性（例如，宽敞度，包围度，自然度，平衡度，立体声兼容性和总体偏好）来选择最佳阵列模式。然后，将这些属性与声学参数进行比较，例如清晰度（C80），通道间互相关系数（ICCC）以及来自所测得房间脉冲响应的峰数（Np）。另外，作为对阵列的最佳高度的评估，使用配对比较的方法评估了听觉。结果表明，表现出较低的C80和ICCC值以及较高的Np值的Hamasaki-square在主观听力测试中是首选。还显示出听众的偏爱特征是环境声音均匀分布，具有较低的C80值，并且早期衰减时间（EDT），声压级（SPL），Np和C80的偏差较小。 （C）2016 Elsevier Ltd.保留所有权利。

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