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before starting a new file. Typically, a file length of 10 seconds is used for ultrasonic recording
and 1 hour is used for acoustic recording.
ULTRASONIC RECORDING SETTINGS
Activation Mode (Triggered or Constant Recording)
e.g. in Day mode, your
Chorus is active during the daylight hours. Whether or not it is actually recording sound
depends on the
Activation
setting. You can choose from either
Constant
, or
Trigger
. If you choose
Constant
, your Chorus is always recording whenever
it is active. If you choose
Trigger
, then your Chorus is waiting for certain sounds before it will
record to the card (see
Trigger Settings
listed below: sensitivity, minimum & maximum
frequency etc.). Trigger is only available for ultrasonic recordings (ZC, or full spectrum WAV).
Acoustic recordings are always Constant.
The
triggered activation mode
will record
all sound
for a set amount of time (usually
seconds to minutes) every time it is triggered when active (based on recording mode selected:
Night Only, Dusk & Dawn, Day Only, Continuous, or Schedule). The trigger is dependent on
the trigger settings, such as
Triggered activation mode is most often used for ultrasonic bat recording.
The
constant activation mode
will record all sound constantly (without triggers) in
whichever recording mode is selected (Night Only, Dusk & Dawn, Day Only, Continuous, or
Schedule). Constant activation mode is most often used in acoustic recording and
soundscapes. If using this mode at ultrasonic sample rates, you require a large SD card with
fast writing speed, minimum of Class 4.
To change the activation mode, use the up/down arrow buttons to select
Activation
, then
use the left/right arrow buttons to choose between
Trigger
or
Constant
.
Sensitivity
This lets you control how loud the sound must be to trigger a recording. To trigger on quieter
noises, increase the sensitivity setting (higher numbers are more sensitive). To trigger only on
louder noises, reduce the sensitivity. The ambient noise level when deploying may be
different to when your Chorus will be recording, and this should be kept in mind when setting
Summary of Contents for CHORUS
Page 1: ...CHORUS User Manual Version 1 0 ...
Page 7: ...7 EXTERNAL FEATURES ...
