Rodent ultrasonic vocalizations
UltraVox XT

How does it work?
UltraVox XT analyzes sound, including ultrasonic vocalizations made by rodents. You can select calls visually in a spectrogram and categorize similar calls based on frequency, amplitude, duration, and time gaps. Easy export to EthoVision XT and The Observer XT allows you to combine the acoustical events with other behavioral data.
Who uses it?
Identifying ultrasonic vocalizations in rodents is useful in studies on social behavior (e.g. autism related) and anxiety or pain studies, such as those in drug development and safety studies. Besides studying the number and durations of the calls, researchers use spectrograms to identify other characteristics of calls.

Why use it?
- Easy and affordable system
- Full-spectrum sound capture with one microphone
- Easy integration with other behavioral data
- Real-time waveform and spectrogram
- Easy call selection
- Easy definition and labeling of calls
- Compact setup
Find more information on the 'Analyze vocalizations' and the 'Benefits' pages.

Relevant blogs

Prof. Berry Spruijt says goodbye (but not really)
Prof. Dr. Berry M. Spruijt recently retired from his position at Utrecht University. I had the honor of attending the symposium that was organized to reflect on and celebrate his career.
How to analyze bird calls with UltraVox XT: a summer love on a spectrogram
You may know that the recently-released UltraVox XT 3 is used to study ultrasound vocalizations, especially in rodents and bats. But the fact that it analyzes full-spectrum sound, makes it ideal for analyzing bird calls.