Editing Bat detector (section)

===DSP detectors===

DSP bat detectors aim to provide an acoustically accurate portrayal of bat calls by using a [[digital signal processor]] to map bats' ultrasounds signals to audible sounds; different algorithms are being used to accomplish this, and there is active development and tuning of algorithms going on.

One strategy called "frequency shifting" uses a FFT signal analysis in order to find the main frequency and signal power, then using digital simulation a new audible wave is synthesized from the original one divided by a defined value.

The processes of Frequency Division and Heterodyne conversion can also be performed digitally.