Full-duplex acoustic interaction system for cognitive experiments with cetaceans

Autor:	Rychen, Jörg, Semoroz, Julie, Eckerle, Alexander, Hahnloser, Richard HR, Kleinberger, Rébecca
Přispěvatelé:	University of Zurich
Rok vydání:	2022
Předmět:	Self-interference cancellation Underwater communication Echo cancellation Human-dolphin communication Killer-whale Orca Humpback whale Inter-species communication Animal communication Bioacoustics Animal cognition 570 Life sciences biology 10194 Institute of Neuroinformatics
Zdroj:	bioRxiv
DOI:	10.1101/2022.05.27.493738
Popis:	Cetaceans show high cognitive abilities and strong social bonds. Acoustics is their primary modality to communicate and sense the environment. Research on their echolocation and vocalizations with conspecifics and with humans typically uses visual and tactile systems adapted from research on primates or birds. Such research would benefit from a purely acoustic communication system in which signals flow in both directions simultaneously. We designed and implemented a full duplex system to acoustically interact with cetaceans in the wild, featuring digital echo-suppression. We pilot tested the system in Arctic Norway and achieved an echo suppression of 18 dB leaving room for technical improvements addressed in the discussion. Nevertheless, the system enabled vocal interaction with the underwater acoustic scene by allowing experimenters to listen while producing sounds. We describe our motivations, then present our pilot deployment and give examples of initial explorative attempts to vocally interact with wild orcas and humpback whales. bioRxiv
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b73f4fc32f0befca1eda1c83a8e83ef5 https://doi.org/10.1101/2022.05.27.493738 Zobrazit plný text záznamu