Soft dB Piccolo-II - Upper Boundary of Linear Operating Range (Low); Upper Boundary of Linear Operating Range (High); Lower Boundary of Linear Operating Range (Low); Lower Boundary of Linear Operating Range (High)

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10 Measuring to IEC 61672-3
10.1 Reference Sound Pressure Level
The reference sound pressure and frequency are 94.0 dB at 1 kHz.
10.2 Reference Level Range
The reference level range is “Low”.
10.3 Corrections for Acoustic Tests
10.3.1 Free-Field and Pressure Response
The Piccolo-II is designed to have a flat response (±0 dB) in a 0° free-field sound field. When in a
pressure field such as in the calibration chamber of a calibrator, the following pressure response
must be taken into account. The pressure response and correction data are given for calibrator
model 4226 from B&K.