Designing a 9-channel location microphone from scratch
Florian Camerer
TL;DR
This paper presents the design of a 9-channel microphone system optimized for atmospheric location recording, aligning recording and playback angles, and addressing practical implementation details for high-quality spatial audio capture.
Contribution
It introduces a novel 9-channel microphone design tailored for Atmos and AURO-3D systems, including analysis of reproduction layout and recording concepts.
Findings
Optimized microphone placement for Atmos recording
Analysis of reproduction layout and recording angles
Practical design considerations for microphone mounts and windshields
Abstract
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.
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Taxonomy
TopicsSpeech and Audio Processing