3D audio is emerging as a production format to enable immersive consumer audio experiences, including the sensation of height. This eBrief focuses on the use of 3D microphone arrays for recording 3D ambiences. Multiple microphone arrays were evaluated, both in theory as well as in practice. The arrays were assessed for their perceptual performance such as spatial envelopment, location accuracy, and timbre. Furthermore, the practical usability of these recordings in a real world movie project and the handling in a common post-production environment have been tested. With the information gathered, a Best Practice guide for different use cases has been developed.
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