VT UltraMic-384 Hardware Operation Manual
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D – Press the AUDIO LEVEL button and the current SPL is shown in real time.
The signal is sampled at the frequency set using “Sampling Freq.” button, if you are
set the trigger on the level will be appear. If you choose the trigger option with HPF
filter, the Mic will apply the filter.
E - Switch to the trigger and select Trigger.
Start dB and Stop dB is shown, these values are the reference for the trigger: the
start dB limit is considered when the registration starts, and if a signal exceed this
limit trigger the record will start for xxxx seconds.
The Stop dB is the level at which the record will be stopped. If the level falls below
this limit the registration will be stopped.
…Furthermore, if bat call trigger the signal then the record starts for xxx second
even if the signal goes below the Stop dB limit, if another signal over the Stop dB
is sensed then the
record will continue for xxxx seconds.
Enabled HPF is set if you want to avoid low signal below xxx
Khz.
It’s hard to understand the sound level and if you prefer to precisely
adjust the upper and lower audio level according to your specific
application, you may go to - after enabling the
Trigger
, to the
Connect
tab and then to the
Audio Level
settings. You can change
the settings by tapping and sliding up and down the red and blue
areas. Or you can use the slides on the left side of the dB values
below.
