Components of the UltraSoundGate Player 116
Introduction
Thank you for purchasing Avisoft UltraSoundGate Player 116. This
bus-powered USB device provides a 16 bit D/A converter, a power
amplifier and a bias voltage generator for electrostatic speakers.
The accompanying recording software Avisoft-RECORDER USGH
can play standard .wav files acquired by the Avisoft-UltraSoundGate
ultrasound recording interfaces or other third-party equipment.
1 Speaker Output Connector
The 4-pole Speakon connector provides the analog speaker output
and a 200V bias voltage for driving electrostatic speakers. The
connector scheme is as follows:
2 Playback volume adjustment knob
This control knob adjusts the analog output level of the power
amplifier
.
In addition to that, the output level can be attenuated in the
RECORDER USGH software from the command Play/Playback
volume...
3 TRG input
This 2-pole (mono) 2.5 mm mini-jack connector is electrically
connected to the TRG button (4) and allows connecting an external
trigger. This input is TTL compatible (there is additionally an internal
pull-up resistor of 10 kOhm to Vcc). Pulling this input to ground (for
instance by closing a simple switch) will activate the logic
TRG
button
.
For a reliable electrical connection, a Switchcraft 0.01” Micro
Plug (part number 850X) is recommended.
4 TRG button
This button represents a logic game controller button that can be used
to start the playback of .wav files in the RECORDER USGH software
(command Play/Settings/”ext trigger” = “joystick b2”).
Joystick b1 (auto hold)
: Pressing the button for more than 2 seconds will activate an
auto hold mechanism on the logic joystick button #1. If the button is pressed again, the
logic button #1 will be reset.
Joystick b2
: The logic joystick button #2 represents the original state of the physical
button (1:1 relation). This option should be used for normal applications.
Joystick b3
(Inverse)
: The logic joystick button #3 represents the inverse state of the
physical button.
Joystick b4
(Toggled)
: The logic joystick button #4 provides a toggle mode, which will
activate the logic button permanently after pressing the physical button. Pressing the
button again will reset the logic button.
5 DOUT
This 2-pole (mono TS) 2.5mm mini-jack connector carries the state
of the LSB (bit 0) of the 16-bit data words of the 16 bit .wav file that
is currently played. The digital output does not work when playing 8
bit .wav files. This digital signal can be used to synchronously
control (trigger) other external devices while playing a .wav file. The
Avisoft SASLab Pro/Lite drop-down menu
File/Specials/UltraSoundGate DIO can be used to edit the DO bits
of the .wav files to be played.
The connector scheme is as follows:
Tip : DO, Sleeve : GND
For a reliable electrical connection, a Switchcraft 0.01” Micro Plug
(part number 850X) is recommended.
6 OVERload indicator
The red OVERload LED indicates clipping. Clipping occurs when
the power supply voltage for the power amplifier section is not high
enough to reproduce the input signal at the current playback volume
setting without distortion. If this happens, the playback volume (2)
should be reduced or the external power supply voltage (connected
to 10) should be increased.
7 PLAY LED
This amber LED indicates the playback of a .wav file (permanent
light). The LED flashes when currently no file is being played.
8 POWER indicator
This green LED indicates the presence of the power supply voltage
for the power amplifier section of the unit.
9 POWER source selector
This switch allows to select the power supply source for the power
amplifier section of the device. If the switch is at the
USB
position
(down), the amplifier will be powered from the USB. Due to certain
power constraints, the maximum playback power will be limited in
this case to about 1 W. At the
EXT
position (up), the amplifier is
powered from an externally attached supply voltage (10).
10 External power supply socket (+12...36V)
This 2.1 mm coaxial power supply socket allows to connect an
external supply voltage in order to increase the playback power
capabilities. The voltage should be between 12 and 36V DC. At
12V, the available power is about 1W, at 36V it is about 10W.
11 LINE OUT
The LINE OUT cinch socket provides the analog output signal
directly from the D/A converter output (level: 4Vpp).
12 USB 1.1 interface
1
2
3
4
5
6
7
8
10
9
12
11
1- Speaker ground
1+ Speaker output signal
2- Unconnected
2+ +200V bias voltage
Installation procedure
First install the RECORDER USGH software either from the
supplied software installation media (navigate to the subfolder
RECORDER USH
and run
setup.exe
) or from the Avisoft
Bioacoustics website (www.avisoft.com/downloads.htm or directly
www.avisoft.com/RECORDER USGH.exe). This installation
program will install both the RECORDER USGH application
(rec_usgh.exe) and the required device drivers (usgh_xx16h.inf,
usgh.sys) for the UltraSoundGate xx16H devices. When the
installation procedure has completed, the UltraSoundGate unit can
be connected to the computer. The device should then be detected
as “Avisoft-UltraSoundGate Player” and the pre-installed driver
should be finally activated.
Under some circumstances it might happen that the silent
installation of the device driver fails. If that happens, navigate to the
Windows Control Panel
>
Hardware and Sound
>
Device Manager
and right-click at the entry
Other devices
>
Avisoft UltraSoundGate
Player 116
and select the
Update Driver Software..
. option. Then
click at
Browse my computer for device driver software,
click at
Browse
and navigate to the folder
C:\Program Files (x86)\Avisoft
Bioacoustics\RECORDER USGH\Drivers
and finally click at
Next
.
The completed device driver installation will then look like this:
