Bioacoustics recording involves using some sort of hardware device to make digital audio recordings (WAV files) of bats, birds, whales, or whatever critter that happens to be near the microphone. When a recorder is placed in the field without a human present, this is known as unattended recording. Using this method, it’s possible to set a recording device up to run in record mode continuously for long-term deployment. However, this can be an inefficient way to work. Continuous recording will use up memory space and battery life quickly. In many cases, using scheduled recording may provide a better solution.