With this paper we present a practically relevant investigation of current, commercially available MEMS microphones (Micro-ElectroMechanical Systems). We compared the static noise floor exhibited by single and various parallel MEMS microphone configurations and a conventional and commonly used electret capsule, as well as the directivity patterns of selected configurations. The results suggest that while current types are exhibiting an already acceptable static noise floor, a direct parallel circuit of MEMS microphones allows further reductions of the noise floor close to the theoretical value of 3 dB SPL per doubling of number of microphones while maintaining omnidirectionality below 5 kHz.
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机译：用本文，我们介绍了对电流，商业上可获得的MEMS麦克风（微机电系统）的实际相关的研究。我们将单一和各种并行MEMS麦克风配置和传统和常用的驻极体胶囊的静态噪声底板进行了比较，以及所选配置的方向性模式。结果表明，虽然当前类型正在表现出已经可接受的静态噪声底板，但MEMS麦克风的直接并联电路允许在麦克风的数量的加倍下，在每次麦克风的数量的同时，在3 dB SP1的理论值接近的理论值的情况下进一步减少，同时保持0以下的全向量。千赫。
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