Designing a 9-channel location microphone from scratch
This work addresses audio recording challenges for professionals in immersive sound production, but it appears incremental as it builds on existing concepts like Stereo Recording Angle and Williams curves.
The paper tackled the design of a 9-channel microphone system for location recording, focusing on atmospheres, by matching recording and reproduction angles for AURO-3D playback, and included analysis of reproduction layouts and practical aspects like mounts and windshields.
The design of a 9-channel microphone system for location recording of mainly atmospheres will be described. The key 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 layout will be included, as well as recording concepts like the Stereo Recording Angle (SRA), Williams curves, Scale Factors for different reproduction angles than 60 degrees and diffuse field decorrelation. Finally, practical aspects like microphone mounts and windshields for such a system will be presented.