Perceptual evaluation of a circularly symmetric microphone array for panoramic recording of audio
Perceptual evaluation of a circularly symmetric microphone array for panoramic recording of audio
复制标题
用于全景音频录制的圆形对称麦克风阵列的感知评估
DOI：
--
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Z. Cvetković
中科院分区：
文献类型：
--
作者：
E. D. Sena;H. Hacıhabiboğlu;Z. Cvetković
Johnston 和 Lam [1] 先前提出了一种循环对称多通道音频录制和再现系统。该系统旨在声场的感知重建，并采用稀疏的定向麦克风圆形阵列来驱动匹配的扬声器阵列。最近提出了基于立体声时间强度平移概念的对该系统的改进[2]。在本文中，该系统的定位性能与原始 Johnston/Lam 配置以及使用正式主观定位测试的二阶高保真度立体声响复制进行了比较。结果发现，对于位于多通道再现系统中心的听众来说，与我们使用的二阶高保真度立体声响复制解码器相比，新提出的 Johnston/Lam 系统改进方案可提供更准确的声源空间再现。
A circularly symmetric multichannel audio recording and reproduction system has previously been proposed by Johnston and Lam [1]. This system aimed at perceptual reconstruction of the sound field and employed a sparse circular array of directional microphones driving a matching array of loudspeakers. An improvement to that system based on stereophonic time-intensity panning concepts has recently been proposed [2]. In this paper localisation performance of that system is compared with the original Johnston/Lam configuration, and 2nd-order Ambisonics using a formal subjective localisation test. It is found that, for a listener positioned at the centre of the multichannel reproduction system, the newly proposed improvement to Johnston/Lam system delivers a more accurate spatial rendition of the sound sources as compared to the 2nd-order Ambisonics decoder we used.