Open AccessLow-cost synchronization of high-speed audio and video recordings in bio-acoustic experiments
Author(s) -
Dennis Laurijssen,
Erik Verreycken,
Inga Geipel,
Walter Daems,
Herbert Peremans,
Jan Steckel
Publication year - 2017
Publication title -
journal of experimental biology
Language(s) - English
Resource type - Journals
eISSN - 1477-9145
pISSN - 0022-0949
DOI - 10.1242/jeb.173724
Subject(s) - synchronizing , synchronization (alternating current) , computer science , set (abstract data type) , real time computing , audio signal , signal (programming language) , embedding , data synchronization , construct (python library) , speech recognition , artificial intelligence , telecommunications , channel (broadcasting) , wireless sensor network , speech coding , transmission (telecommunications) , computer network , programming language
In this paper, we present a method for synchronizing high-speed audio and video recordings of bio-acoustic experiments. By embedding a random signal into the recorded video and audio data, robust synchronization of a diverse set of sensor streams can be performed without the need to keep detailed records. The synchronization can be performed using recording devices without dedicated synchronization inputs. We demonstrate the efficacy of the approach in two sets of experiments: behavioral experiments on different species of echolocating bats and the recordings of field crickets. We present the general operating principle of the synchronization method, discuss its synchronization strength and provide insights in how to construct such a device using off-the-shelf components.