Articles | Volume 13, issue 1
https://doi.org/10.5194/jsss-13-81-2024
https://doi.org/10.5194/jsss-13-81-2024
Regular research article
 | 
30 Apr 2024
Regular research article |  | 30 Apr 2024

Simple in-system control of microphone sensitivities in an array

Artem Ivanov

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Short summary
The presented approach allows users to perform measurements of microphone responses directly in the array using the internal hardware and so to characterize the whole signal chain of microphone–preamplifier–ADC. The measurements do not need special equipment and can be carried out in ordinary reverberant locations. A loudspeaker driven by a voltage pulse is used to produce a sound wave with a short first wavefront. Processing only this wavefront suppresses reflected waves that arrive later.