Designing a 9-channel location microphone rig from scratch

The design of a 9-channel microphone system for location recording of mainly atmospheres will be presented. The main concept is matching the recording and reproduction angles of the individual sectors. The rig is designed for the AURO-3D 9-channel playback system (4 height speakers). An analysis of the reproduction angles will be included, as well as basic recording concepts like the Stereo Recording Angle (SRA), Williams curves, compensation factors for different reproduction angles than 60° and diffuse field correlation. Finally, practical aspects like microphone mounts and windshields for such a system will be presented.