Measurement of Microphone Harmonic Distortion using Predistortion Technique

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F23%3A00368663" target="_blank" >RIV/68407700:21230/23:00368663 - isvavai.cz</a>
Result on the web
<a href="https://www.fa2023.org/" target="_blank" >https://www.fa2023.org/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.61782/fa.2023.0294" target="_blank" >10.61782/fa.2023.0294</a>

Result language
angličtina
Original language name
Measurement of Microphone Harmonic Distortion using Predistortion Technique
Original language description
Measurement of microphone nonlinear behavior has always been a challenging task due to a lack of linear acoustic sources. A recently developed technique that corrects a distorted output signal of an excitation device using predistortion of its input signal is used in this work. Thanks to this technique, a spectrally clean sinusoidal acoustic pressure is generated inside a closed box in which the microphone under test is placed together with a low-distortion reference microphone. The goal of this paper is twofold. First, show that the direct measurement of distortion is possible even for high-pressure levels; second, compare the harmonic distortion of several types of microphones such as studio electrostatic and electrodynamic microphones, MEMS microphones and laboratory microphones.
Czech name
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Czech description
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Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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