Modular Design for Spherical Microphone Arrays

被引:0
|
作者
Gonzalez, Raimundo [1 ]
Pearce, Joshua [2 ,3 ,4 ]
Lokki, Tapio [1 ]
机构
[1] Aalto Univ, Dept Comp Sci, Espoo, Finland
[2] Aalto Univ, Dept Elect & Nanoengn, Espoo, Finland
[3] Michigan Technol Univ, Dept Mat Sci & Engn, Houghton, MI 49931 USA
[4] Michigan Technol Univ, Dept Elect & Comp Engn, Houghton, MI 49931 USA
基金
欧盟地平线“2020”;
关键词
D O I
暂无
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Spherical microphones arrays are commonly utilized for recording, analyzing and reproducing sound-fields. In the context of higher-order Ambisonics, the spatial resolution depends on the number and distribution of sensors over the surface of a sphere. Commercially available arrays have set configurations that cannot be changed, which limits their usability for experimental and educational spatial audio applications. Therefore, an opensource modular design using MEMS microphones and 3D printing is proposed for selectively capturing frequency-dependent spatial components of sound-fields. Following a modular paradigm, the presented device is low cost and decomposes the array into smaller units (a matrix, connectors and microphones), which can be easily rearranged to capture up to third-order spherical harmonic signals with various physical configurations.
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页数:7
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