Sound acquisition for spatial audio applications usually requires the use of microphone arrays. Surround recording and advanced reproduction techniques such as Ambisonics or Wave-Field Synthesis usually require the use of multi-capsule microphones. In this context, a proper sound acquisition system is necessary for achieving the desired effect. Besides spatial audio reproduction, other applications such as source localization, speech enhancement or acoustic monitoring using distributed microphone arrays are becoming increasingly important. In this paper we present the design of a general-purpose modular microphone array to be used in the above application contexts. The presented system allows performing multichannel recordings using multiple capsules arranged in different 2D and 3D geometries.
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