This is not just a normal ultrasonic microphone that you must plug into a recorder with a high sampling rate, this is a microphone (MEMS) that already samples the incoming signal itself. The output is a USB plug. You can plug it directly into a small laptop that you take into the field. Such laptops are getting cheaper and cheaper and more powerful at the same time. In the near future very affordable palmtops / Blackberries can be used with this ultrasonic microphone. The sensitivity of the microphone is adjustable to three levels. The price of the microphone is only 200 euros.
The present system is 16 bits and the sampling frequency 200kHz. Depending on the success of this system a 400kHz version will also be made available.
Last updated 5.4.2011