2. Acoustic measurement instruments

2.1 Measurement chain

The most traditional purpose of acoustic measurement is to obtain the sound pressure level generated by an acoustic phenomenon. This assessment can be made for the signal considered in its entire spectral range (linear measurement), or after subjecting the phenomenon to a weighting that alters its initial spectrum. In this case, the weighted sound pressure level is measured, or the spectrum is analyzed, depending on the type of weighting circuit used (§ 2.3 ).

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