12 Copyright © 2011-2013 SM2M+ User Manual
will approximately halve these values. Lossy compressions are
available for even more compact storage. See the SM2+ Platform
User Manual for more information.
SSample Rate
(kHz)
3
32GB 6
64GB 1
128GB 2
256GB 5
512GB
384
0.8
1.6
3.2
6.4
13
192
1.6
3.2
6.4
13
26
96 3.2
6.4
13
26
51
48
6.4
13
26
51
103
16
19
39
77
154
309
4
77
154
309
617
1,235
N
Note: SDXC cards must be formatted to a FAT32 file
system to work with the SM2M+. They will not work “out
of the box”. Please contact Wildlife Acoustics support
for more information on how to reformat the cards.
Some flash cards cannot keep up with the high sample rates
required for ultrasonic recording. This can result in occasional
distorted areas in the recordings. The SM2M will suppress the
effects of skipping flash cards making the effect less obvious so
that the skips will not interfere with analysis. But for best results
you should still check your flash cards with the SD card speed test
in the Utilities Menu on the SM2M+. This test will test the SD card
in slot A and takes 15-30 seconds to run. Results indicating 0/0
mean no problems were found. Otherwise, numbers indicate a first
and possible second occurrence in seconds of a “glitch” where the
flash card is unable to keep up resulting in losing up to one second
of data. A 99 means the occurrence was greater than or equal to
99 seconds. Note that the test requires at least 64MB of free
space on the card.
