UltraSoundGate 116Unb
User's Guide
part #31187
RECORDER USGH Settings
The configuration dialog box can be launched from the menu Options/
Configuration... or through the button.
The input sample rate can be selected from the
Input Device Set-
tings
section. Available sample rates are 384, 256, 192, 128, 96 and
48 kHz. The
Buffer
setting determines the USB transfer buffer size on
the PC. Shorter durations will provide low real-time spectrogram dis-
play latencies but might lead to erroneous USB transfers under certain
conditions.
Generic USB Audio Device
Getting started with the RECORDER USGH
Software
The RECORDER USGH software can be launched from
Start / All
Programs
/
Avisoft Bioacoustics
/
RECORDER USGH.
On the
first program start, the configuration dialog box w ill be launched
automatically (otherwise it is available from
Options
/
Configura-
tion).
Select the desired
Sampling rate
from the
Input Device
Settings
section and click at
Ok.
Then click at the Pause button
(
Monitoring/Pause
) and the Start button (
Monitoring/Start
). You
w ill then see the real-time spectrogram displaying the incoming
signals. For details on the operation of the RECORDER software
see the Avisoft-RECORDER manual and the section
RECORDER
USGH Software Settings
in this guide.
Sound-activated recording can be arranged by selecting the
Trig-
ger
source option
level of this channel
. The Pre-trigger duration
should be kept as short as possible. Long pre-trigger settings can
lead to data transmission errors if the sample rate is high. In order
to simplify the operation of the Avisoft-RECORDER software in the
field, a link to
RECORDER USGH
may be added to the Windows
Startup folder
(
Start->All Programs->Startup
).
Additionally, the Avisoft-RECORDER option
Monitoring/Autostart
should be activated. This arrangement will start the monitoring
process automatically after booting the laptop (the UltraSoundGate
device must be attached to the USB port prior to booting Win-
dows).
The menu
Options/Configuration management/Presets
provides
a number of default settings that might help to configure the sys-
tem for a specific task. Note that the relatively low gain of the Ultra-
SoundGate 116Unb requires that the trigger threshold is set to a
low level. For passive bat monitoring try the preset
Options / Con-
figuration management / Preset / Bat monitoring using
USG116Hnm/Hnb/Hnbm
. It is also recommended to activate the
option
x10
on the Display Settings section of the Configuration
Dialog box that will provide a better (more sensitive) real-time
spectrogram display.
Please refer to the users guide or the online help system for further
details on the Avisoft-RECORDER software (http://
www.avisoft.com/RECORDER.pdf).