Measurement of Microphone Harmonic Distortion using Predistortion Technique

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of Microphone Harmonic Distortion using Predistortion Technique

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Measurement of Microphone Harmonic Distortion using Predistortion Technique

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Forum Acusticum 2023

ISBN

978-88-88942-67-4

ISSN

2221-3767

e-ISSN

2221-3767

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

European Acoustics Association

Místo vydání

Madrid

Místo konání akce

Torino

Datum konání akce

11. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—