The first fully digital ultrasonic USB microphone.
USB connector
Ultramic200K & Ultramic250K are ultrasound microphones with integrated digital to analog converter with 200 kHz & 250 kHz sampling rate. The USB Full speed port 2.0 allow an easy connection to any PC or Mac computer; the device is recognized as an HID (human interface device) microphone so no driver installation is required!
It appear as a single channel audio input device; however if recording in stereo the two channels will appear identical.
To connect the Dodotronic Ultramix 200 or 250 kHz to your Android device you need to use the USB Mini OTG Adapter with a USB C - USB A cable.
To connect the Dodotronic Ultramix 200 or 250 kHz to your iOS device you need to use the USB Mini OTG Adapter with a Lightning to USB cable for Apple.
Microphone
The MEMS (Micro Electro-Mechanical Systems) microphone is very sensitive with a good signal/noise ratio and small form factor. An integrated low pass 8TH order filter is provided in order to reduce aliasing artifacts.
Frequency response of MEMS sensor
Compatibility
| Operating system | ULTRAMIC200K | ULTRAMIC250K |
| Windows Vista | OK | OK |
| Windows XP | OK | NOT COMPATIBLE!!! |
| Windows 7 | OK | OK |
| Linux Ubuntu | OK | OK |
| Linux Debian | OK | OK |
| Linux Android | OK * | OK * |
| Mac Os | OK | OK |
* Consideration on Android OS:
please visit the Android section
Characteristics
Connect it to your computer and it will be immediately recognized as a new audio input.
In your preferred sound recording software simply select the new audio input and choose the sampling frequency (only the 200KHz or 250KHzoption should be visible).
Settings
Ultramic can be easily opened acting on the back screw. Close to the microphone there are two switch that can be turned on and off with a nail, no tool needed, in order to change amplification between three hardware levels.
Applications
The ultramic can be used by scientific researchers for:
In your house or in your office, discover the ultrasonic noise emitted by your TV, your computers, and by the power adapters of all your electronic devices.
Outside, use the UltraMic to record the ultrasonic signals bats emit to echolocate and discover the ultrasonic cries of small rodents.
Bats are a very important component of our ecosystems, they are protected since 1930 and recent studies demonstrate that they are important to keep down the population of insects and mosquitos.
The ultramic has been developed with the scientific support of CIBRA / University of Pavia.
User guide
Software
Windows:
iOS:
Raspberry:
Android:
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