A new publicly available dataset of microphone impulse responses (IRs) has been generated. The dataset covers 25 microphones, including a Class-1 measurement microphone and polar pattern variations for seven of the microphones. Microphones that were included had omnidirectional, cardioid, supercardioid, and bidirectional polar patterns; condenser, movingcoil, and ribbon transduction types; single and dual diaphragms; multiple body and head basket shapes; small and large diaphragms; and end-address and side-address designs.Using a customdeveloped computer-controlled precision turntable, IRs were captured quasi-anechoically at incident angles from 0? to 355? in steps of 5? and at source-to-microphone distances of 0.5, 1.25, and 5 m. The resulting dataset is suitable for perceptual and objective studies related to the incident-angle--dependent response of microphones and for the development of tools for predicting and emulating on-axis and off-axis microphone characteristics. The captured IRs allow generation of frequency response plots with a degree of detail not commonly available in manufacturer-supplied data sheets and are also particularly well-suited to harmonic distortion analysis.

Authors: Franco Hernández, Juan Carlos; Bacila, Bogdan; Brookes, Tim; De Sena, Enzo
Affiliations: Institute of Sound Recording, University of Surrey, Guildford, United Kingdom; Applied Psychoacoustics Laboratory, University of Huddersfield, Huddersfield, United Kingdom(See document for exact affiliation information.)
JAES Volume 70 Issue 10 pp. 882-893; October 2022
Publication Date: October 31, 2022 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=22014

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DOI: https://doi.org/10.17743/jaes.2022.0027

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