An investigation of methods for free-field comparison calibration of measurement microphones

Salvador Barrera-Figueroa, Guillermo Moreno Pescador, Finn Jacobsen, Knud Rasmussen, Vicente Cutanda Henriquez, Peter Møller Juhl

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Abstract

Free-field comparison calibration of measurement microphones requires that a calibrated reference microphone and a test microphone are exposed to the same sound pressure in a free field. The output voltages of the microphones can be measured either sequentially or simultaneously. The sequential method requires the sound field to have good temporal stability.
The simultaneous method requires instead that the sound pressure is the same in the positions where the microphones are placed. In this paper the results of the application of the two methods are compared. A third combined method is suggested.
Original languageEnglish
Title of host publicationProceedings of Internoise 2010
Number of pages10
Publication date2010
Pages1-10
Publication statusPublished - 2010
Externally publishedYes

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