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首页> 外文期刊>The Journal of the Acoustical Society of America >Analytical approach to transforming filter design for sound field recording and reproduction using circular arrays with a spherical baffle
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Analytical approach to transforming filter design for sound field recording and reproduction using circular arrays with a spherical baffle

机译：使用圆形球面挡板的圆形阵列的声场记录和再现的变换滤波器设计的解析方法

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摘要

A sound field recording and reproduction method using circular arrays of microphones and loudspeakers with a spherical baffle is proposed. The spherical baffle is an acoustically rigid object on which the microphone array is mounted. The driving signals of the loudspeakers must be obtained from the signals received by the microphones. A transform filter for this signal conversion is analytically derived, which is referred to as the wave field reconstruction filter. The proposed method using a spherical baffle is compared with methods using an array of directional microphones and a microphone array mounted on a cylindrical baffle. Numerical simulations indicated that the proposed method is advantageous for sound field recording and reproduction compared with the other two methods. The results of measurement experiments in a real environment are also demonstrated. (c) 2016 Acoustical Society of America.
机译：提出了使用带有球形挡板的麦克风和扬声器的圆形阵列的声场记录和再现方法。球形挡板是在其上安装了麦克风阵列的声学刚性物体。扬声器的驱动信号必须从麦克风接收的信号中获取。分析地导出用于该信号转换的变换滤波器，其被称为波场重构滤波器。将使用球形挡板的拟议方法与使用定向麦克风阵列和安装在圆柱形挡板上的麦克风阵列的方法进行了比较。数值模拟表明，与其他两种方法相比，该方法在声场记录和再现方面具有优势。还演示了在实际环境中的测量实验结果。 （c）2016年美国声学学会。

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