•
For faster download in the field, or to save disk space, un-
check the ‘Decompress’ checkbox.
This will disable the decompression step of the offload process, meaning you will end up
with ‘sud‘ files only. These can be decompressed into wav files at a later time using the ‘File
Extraction’ option under the tools menu.
3
More details
3.1
Adding additional memory cards
The SoundTrap ST500 series have the capacity to add additional data storage in the form of 3
microSD card slots. Two reasons to consider using these are:
1.
To lengthen deployment endurance by adding more memory. When using a high sample
rate, the internal memory may get exhausted before the batteries are depleted. Adding
memory cards may extend the recording duration by up to four times.
2.
To enable quick field servicing. The internal memory is non-removable, meaning the data
must be downloaded by USB which can take several hours. Using memory cards enables fast
retrieval of data ie a fast re-deploy can be achieved by simply swapping out the memory
cards and batteries.
Important things to note before using addition memory:
1.
You should only use the recommended memory cards
–
Samsung Evo MicroSD
. Counterfeits
of these cards are common, so only source from reputable suppliers. Using other card types
or counterfeits may result in performance issues such as greatly increased power
consumption, sampling gaps or unreliable recording.
2.
The cards are used in the sequence 3->2->1->0 where 0 is the internal memory and 3 is the
bottom-most external 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’ option.
This must be done for each card
individually.
