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Feature extraction based on the high-pass filtering of audio signals for Acoustic Event Classification
(Academic Press, 2015)
In this paper, we propose a new front-end for Acoustic Event Classification tasks (AEC). First, we study the spectral characteristics of different acoustic events in comparison with the structure of speech spectra. Second, ...
Simultaneous round-trip time-of-flight measurements with encoded acoustic signals
(Institute of Electrical and Electronics Engineers, 2012-10)
In relative positioning systems, with the aim of estimating object positions, distances among them are computed in a cooperative way, usually by measuring times-of-flight from the signals that they emit. These emissions ...
Underwater acoustic communication during the mating behaviour of the semi-terrestrial crab Neohelice granulata
(Springer, 2019-06)
In semi-terrestrial crabs, the production of sounds has been recognized to be related to courtship communication dynamics. The present study aimed to assess if the crab Neohelice granulata (Varunidae) was able to emit ...
Interspecific territoriality despite vocal divergence in two sympatric Laterallus crakes
(Springer, 2020-04-26)
Territoriality is a widespread behavioral phenomenon that functions for partitioning space and defending resources. Birds tend to defend territories against homospecific individuals through long-distance acoustic signals, ...
Evaluation of Zadoff-Chu, Kasami, and Chirp-Based encoding schemes for acoustic local positioning systems
(Institute of Electrical and Electronics Engineers, 2020-08)
The task of determining the physical coordinates of a target in indoor environments is still a key factor for many applications including people and robot navigation, user tracking, location-based advertising, augmented ...
Sound production mechanism in the semiterrestrial crab Neohelice granulata (Brachyura, Varunidae)
(Journal of Animal Ecology, 2019-11)
Very few studies of sound production in the Brachyura have simultaneously identified the type of individuals (e.g. sex) producing acoustic signals, the structures involved in making sound and the social context. The emission ...
Acoustic Quality of University Classrooms: Analysis and Evaluation of Acoustic Parameters of VenuesCalidad Acústica de Aulas Universitarias: Análisis y Evaluación de Parámetros Acústicos de RecintosQualidade acústica de salas de aula universitárias: análise e avaliação de parâmetros acústicos de locais
(Universidad Tecnológica Nacional, 2019)
Antarctic beaked whale echolocation signals near South Scotia Ridge
(Wiley Blackwell Publishing, Inc, 2015-07)
Several species of beaked whales inhabit the Southern Ocean, but information on their abundance, distribution, and seasonality is scarce. However, beaked whales are the only cetaceans known to use frequency modulated (FM) ...