Movie 1

This video demonstrates the operation of our proposed synchronization method. First, the synchronization system is demonstrated by filming a pencil impacting the cricket enclosure. The video was filmed at 240Hz and the audio recorded at 50kHz. After synchronization the video was played back at 24Hz and the audio at 50kHz. The next clip shows the stridulation of a field cricket, filmed with the same settings. After these experiments, we demonstrate our synchronization method applied to behavioral experiments with two bat species: Micronycteris microtis capturing an insect on a leaf and Noctilio Leporinus capturing a fish.

Low-cost synchronization of high-speed audio and video recordings in bio-acoustic experiments

Dennis Laurijssen, Erik Verreycken, Inga Geipel, Walter Daems, Herbert Peremans, and Jan Steckel

Journal of Experimental Biology 2018. 221:None-None; doi: 10.1242/jeb.173724