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Sound Recording Features
The Model 831, when installed with the
Sound Recording Firmware, can implement
digital recording of the sound signal
output from the measurement hydrophone.
The following features are provided:
Sample Rate: User-selected
from:
Recording Mode: User-selected
modes from:
-
Manual Recording:
each recording is manually
initiated
-
Event Recording (ELA
Firmware): recording is
automatically initiated by an
exceedance-based event
-
Measurement
Recording (ELA Firmware):
recording is automatically initiated
at the beginning of each measurement
history record
Range: High and Low gain settings
(33dB difference)
Manual Sound Recording
Manual Sound Recording: recording
can be initiated with or without Time
History.
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Source Name
Markers: when used with Time
History the measurement source can
be selected as 'Markers' for the
record for Truck; Automobile;
Motorcycle; Aircraft; Exclude plus 5
others, (6-10), non-designated
choices. The designated marker names
can also be changed by the user
-
Pre-trigger Time:
enables the recording to include
a user-selected segment of time
prior to the exceedance-based
trigger
-
Recording Time:
user-set recording duration
-
Recording
Initiation: manually set to
record the required data (source
marker)
Event Sound Recording
Event Sound Recording: ELA
Firmware installed; to automatically initiate a
recording each time an exceedance-based
event is triggered via Save Snapshot
mode.
Measurement Sound Recording
Measurement Sound Recording: ELA
Firmware must be enabled for Measurement
Sound Recording via the Save Snapshot
mode.
Sound Recording Playback
All sound
and voice recordings can be played back
via a listed recording time associated
with each recording. |
