Capsule Calibration Approaches for Low-Cost Higher Order Ambisonic Microphone Arrays
|Middlicott, C. and Wiggins, B.
Low-cost electret microphone capsules, such as those accessible to the audio hobbyist or DIY audio electronics community are typically available ‘unmatched’. Ideally one would like to ensure these capsules all reside within a very small production/performance tolerance. In a cost-focused, mass-production environment it is not feasible to measure and match large batches of capsules hence the acoustic performance will differ from capsule to capsule. This paper summarises workaround approaches to capsule calibration in an effort to mitigate/overcome the problems caused by capsule mismatch, with a specific focus on its applications ambisonics and multi-microphone arrays.
|Ambisonics; Immersive Audio; Microphones; Calibration
|153rd Audio Engineering Society Convention
|Audio Engineering Society
|Web address (URL)
|Accepted author manuscript
File Access Level
|19 Oct 2022
|Publication process dates
|15 Nov 2022
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