SOUND DETECTAI USER MANUAL
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9-2-4 Directional Sound
It is often useful to take snapshots of interesting sound sources from several
different directions. The exact location of the source is easier to determine when
viewed from different angles. Sound sources can also be directional, meaning
that the sound level will differ depending on the direction.
9-2-5 Sound Saving
The the capture button is pressed the sound coming from the direction of the
crosshair is saved. The default is to save 2 seconds of sound, from the moment
the capture button is pressed backwards. Keep the camera steady for a few
seconds before taking a snapshot, in order to get a clear signal from the source
of interest.
If there is a sporadic event, take a snapshot right when or right after the event is
observed in order to record the signal of the event.
9-2-6 Recommended Distance
The minimum recommended sound source distance for the device is
approximately 0.3 meters (1.0 ft). If the distance is shorter than this, the location
of sound sources may not be accurately displayed. In addition, the optical
camera will not be focused at such short distances.
There is no specific upper limit for the distance at which the device can be used.
In practical cases, the distance is often limited to approximately 130 meters
(430 ft), but strong sound sources in an otherwise quiet environment can be
detected at even larger distances. Respectively, weak sound sources usually
require closer proximity.
