Most methods of measuring acoustic intensity rely on the use of the signals captured by two closely spaced microphones in the near field of the source.The acoustic power can be measured in situ and the are radiating the most sound energy may be identified directly.The acoustic intensity is most easily calcu lated-using the cross spectrum between the two microphone signals [1], but whic hever method is used.the pressure and phase relationships between the micropho nes must be measured with a high degree of precision to obtain an accurate result.
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WAGSTAFF et al. (2024) studied this question.
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