PAMGUARD
PAMGAURD expects calibration data in terms of gain and ADC range. To work around this, specify a
preamplifier gain of the calibration value * -1.0 (eg -176.0) and specify the Peak-Peak voltage range
as 2.0 V.
PAMGuide
PAMGuide provides several convenient calibration schemes. For SoundTrap data select the end-to-
end calibration type and enter a system sensitivity of the calibration value * -1.0 (eg -176.0).
Audacity
Audacity reports SPL in units of dB re full scale. To scale SoundTrap data use the following:
Value in dB re 1 uPa = audacity value + end-to-end calibration – 3dB;
For example, if the end-to-end value from the calibration sheet is 176.0 dB, and audacity reports a
level of -70 dB, the calibrated SPL is 103.0 dB re 1 uPa.
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