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SoundTrap ST400 User Guide

September 2021

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Summary of Contents for SoundTrap ST400

Page 1: ...SoundTrap ST400 User Guide September 2021...

Page 2: ...dTrap Status 10 2 7 Configure the deployment 10 2 8 Begin recording using the IR Remote Control 12 2 9 Data Offload 13 3 More details 14 3 1 Data Files 14 3 2 Calculation of deployment endurance 15 3...

Page 3: ...4 1 1 Click detector 21 4 1 2 Snippet extractor 21 4 1 3 User parameters 22 4 1 4 Output File formats 23 4 1 5 Click Detector Caveats and Cautions 24...

Page 4: ...tallation and basic deployment instructions This is followed by several sections containing more detailed information around operation deployment maintenance and troubleshooting It is highly recommend...

Page 5: ...anticlockwise to release the lock Gentry pull the chassis from its housing Closing the housing Carefully check the O rings Any nicks or scratches indicate they must be replaced Lubricate O rings with...

Page 6: ...of other brands is unknown Untested brands may leak acid potentially causing damage to the electronics Source the batteries from reputable suppliers to avoid inferior counterfeits Be careful to ensure...

Page 7: ...st card Any full or missing cards will be skipped 3 It is critical that each card is formatted prior to each deployment This can only be done in the SoundTrap recorder using the Delete All Files optio...

Page 8: ...ted the SoundTrap host software installation o The installation will be smoother if you re logged into windows as an administrator Visit www OceanInstruments co nz downloads to download the software D...

Page 9: ...Figure 1 The Device List...

Page 10: ...gure 2 Deploy Control 2 7 Configure the deployment Select the Deploy tab as shown in figure 4 Configure the deployment parameters as follows o The Recording Starts section determines when recording wi...

Page 11: ...re 1 uPa The Low setting should be used for very noisy environments such as in the vicinity of pile driving The low setting increases the maximum SPL to around 187 dB but comes at the cost of lower s...

Page 12: ...ART to start recording Press STOP to stop recording If you have set a recording to start recording at a later time the recorder will blink red to indicate it is armed and waiting The armed state is ca...

Page 13: ...date recorded approximate size and whether it has yet been downloaded to your computer s hard drive Download individual files by right clicking the file and selecting download By default all files wil...

Page 14: ...t can be opened by any media player matlab raven etc o xml files which contain metadata such as date recorded gain setting etc o csv files containing ancillary sensor data e g temperature All file typ...

Page 15: ...tion 3 3 Clock details SoundTrap s clock is synchronised to your PC whenever you click on the deploy button with an accuracy of 0 5s Internally the clock is maintained in UTC time When files are offlo...

Page 16: ...y to be tampered with The SoundTrap should be attached to the line a couple of meters off the bottom Two grooves around the housing provide attachment points for cable ties This bottom cable tie shoul...

Page 17: ...tch is somewhat hidden it is located adjacent 3 memory card slot and is activated by inserting a pin through a small hole in the electronics cover When asked to press reset you must hold down the rese...

Page 18: ...n Common causes include 1 Using a external hard drive on the same set of ports this can overload the USB controller 2 Using a USB hub try connecting directly to the computer 3 Using a low quality lapt...

Page 19: ...y in voltage terms Because SoundTraps integrate the recorder and hydrophone in a single package there is a fixed relationship between sound pressure and the resultant wav file data thereby simplifying...

Page 20: ...bration tones are an annoyance they can be disabled on the deploy tab However we recommend keeping them enabled where possible as they provide a useful check of system calibration and performance 4 Ap...

Page 21: ...indow is a user parameter see below In parallel the power of the full bandwidth whitened signal is measured using a much longer exponential window to give an estimate of the ambient noise power This i...

Page 22: ...ll reduce the SNR of short transients and so give poorer detection of delphinids or an intermediate value which will tend to reduce sensitivity to both short and long transients but not by much Blanki...

Page 23: ...stant number of samples per snippet The size of each snippet is set the by the pre and post trigger user parameters The snippet size in samples will be close to round pre post 576e3 but the precise sa...

Page 24: ...tart_time microseconds E 1 end_time microseconds E 0 noise level 0 0 If there are detections they will be bracketed between these lines and the appropriate detections counts will be changed in the off...

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