Body: <p>I am working with data from 3 different HF500 SoundTraps.
  To compare noise levels across stations, I would like to calibrate the measurements using the calibration values provided by the manufacturer.</p>
  <p>The user guide recommends the following:
  &quot;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&quot;</p>
  <p>However when I try this, I end up with strange value of sound levels (very high on the decibel scale) and the spectrograms appear completely &quot;saturated&quot; even when trying to play around with the scales.</p>
  <p>Is it normal or has anyone encountered this issue before ? I'm probably missing something there...</p>
  <p>Thanks for any advice !</p>
  
Tags: <pamguard><calibration><soundtrap>
Title: How to correctly input SoundTraps calibration data in PAMGuard for accurate noise measurements?
ThreadText: # How to correctly input SoundTraps calibration data in PAMGuard for accurate noise measurements?
  
  (Asked by: username_0 on 2022-07-13)
  
  I am working with data from 3 different HF500 SoundTraps.
  To compare noise levels across stations, I would like to calibrate the measurements using the calibration values provided by the manufacturer.
  
  The user guide recommends the following:
  "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"
  
  However when I try this, I end up with strange value of sound levels (very high on the decibel scale) and the spectrograms appear completely "saturated" even when trying to play around with the scales.
  
  Is it normal or has anyone encountered this issue before ? I'm probably missing something there...
  
  Thanks for any advice !
  
  **Tags:** pamguard, calibration, soundtrap
  
  
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  ## 0 answers
  
  