A note on the influence of the averaging time and the frequency resolution on the accuracy of acoustic measurements

Finn Jacobsen

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    This note deals with measurement accuracy in some typical acoustic measurements, measurement of sound pressure and sound intensity in one-third octave bands, and measurement of acoustic transfer functions with a multi-channel FFT analyser. The purpose is to demonstrate by simple examples how the choice of measurement parameters can affect the accuracy of an acoustic measurement, and how the accuracy with a given set of parameters depends on the measurement conditions.
    Original languageEnglish
    Number of pages13
    Publication statusPublished - 1997

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