Software
Hardware
Sales
Animal Sounds
| |
UltraSoundGate 116Hbm for bat monitoring applications |
part # 61160 | |
Cost-effective ultrasound recording interface with a balanced analog input, rugged aluminium housing, USB 2.0 interface and recording software Avisoft-RECORDER USGH. This stripped-down model is suited for long-term bat call monitoring applications.
In combination with a low-cost netbook computer such as an Asus Eee PC901 (with external USB harddrive), Eee PC 1000H or an Acer One X150 and a large-capacity car battery, this system enables cost-efficient bat monitoring that can be operated in an unattended mode for several days/nights. The total price including the computer would be less than 3000 Euros.
The included Avisoft-RECORDER USGH software provides various automated trigger and timer options that support this kind of long-term monitoring.
|
UltraSoundGate 116Hbm front view
|
|
| Number of channels | 1 |
| ADC type | Delta-Sigma architecture with integrated adaptive anti-aliasing filter |
| Resolution | 16 bit or 8 bit |
| Sample rates [kHz] | 300, 250, 214, 187.5, 166.6, 150, 125, 100, 75, 62.5, 50 |
| Frequency response (-3dB, external input without mic) | 20 Hz - 140 kHz |
| Acoustic monitor output | no |
| Overload indicator (red LED) | no |
| Peak level meter (4 LEDs) | no |
| Input sensitivity (max trim) | -43.2dBV = -41 dBu = 6.9 mVrms |
| Input sensitivity (min trim) | -3.2dBV = -1 dBu = 0.69 Vrms |
| Gain adjustment potentiometer | 40 dB continuous range |
| Input impedance | 50 kOhm |
| Analog input connector | female XLR-5 socket |
| Other inputs | none |
| Computer interface | USB 2.0, isochronous high-speed mode |
| Physical USB connection | standard B-type USB socket |
| Maximum power supply current (drawn from the USB) | 300 mA |
| Housing | compact aluminum enclosure |
| Physical dimensions (W/H/D) in mm | 90 x 53 x 130 |
| Weight | 290 g |
| Included software | Avisoft-RECORDER USGH, version 3.4 for Windows XP and Vista |
|
Principle of the UltraSoundGate 116Hbm recording system
|
UltraSoundGate 116Hb with condenser microphone
|
part # 61161 | |
- UltraSoundGate 116Hbm with Avisoft-RECORDER USGH,
- Very sensitive externally polarized condenser microphone (CM16 + CMPA) with a flat frequency response,
replaceable capsule, low-noise and low-distortion preamplifier (no spare capsule included),
- Microphone extension cable (5 m)
|
UltraSoundGate 116Hb with electret microphone
|
part # 61162 | |
- UltraSoundGate 116Hbm with Avisoft-RECORDER USGH,
- Rugged electret microphone,
- Microphone extension cable (5 m)
|
What are the advantages of this PC-based bat monitoring system?
| |
- Almost unlimited recording capacity because large computer harddisks (or external 2.5" bus-powerded USB harddisks) are being used to save the recorded sound files, which enables unattended recording over several nights (AC power or a large car battery is required).
- The accompanying versatile recording software provides a wide range of recording options that include advanced algorithms for detecting even very soft bat calls that are almost buried in the background noise floor (trigger option 'whistle tracking'). A Wiener Entropy threshold can prevent that a recording is triggered by broad-band insect noise.
- The trigger thresholds and frequency intervals can be adjusted visually on the real-time spectrographic dispay.
- The recorded sound files are saved as common .wav files that can be processed by various sound anylsis software applications.
- An optional sound file input mode (which replaces the microphone input signal by a .wav file) allows to test and optimize the current trigger settings on a previously recorded sound file.
- For projects that require unattended recording for several days or weeks, a special test signal playback mode allows to test the system periodically by connecting an ultrasound speaker (#60105) to the PC.
- The sample rate can be adopted to the required frequency range (there is an integrated anti-aliasing filter that allows to sample the analog input signal at lower rates without introducing artifacts) and the bit depth can be reduced to 8 bits in order to save storage space.
- There are two different microphone options in order to best suit various field conditions: The sensitive condenser microphone CM16/CMPA provides best results under dry field conditions, while the electret microphone will still work under more humid conditions (at the expense of a reduced sensitivity at higher frequencies above about 50 kHz).
- Optionally available long microphone extension cables allow to place the microphone as far as 300 meters from the base unit and the computer.
|
Return to UltraSoundGate
Home. | |
avisoft.com