Abstract
"ENGINEER", established in 1973 by The Institution of Engineers, is a Journal for dissemination of Engineering knowledge, published quarterly.Cover DescriptionCover images show a schematic diagram of a Pumped-Storage Hydroelectricity (PSH) facility and one of the promising sites for PSH in Sri Lanka. The latter image was obtained from the publicly available JICA report on “Development Planning on Optimal Power Generation for Peak Demand in Sri Lanka”. The Institution of Engineers, Sri Lanka acknowledges JICA for the image. If you are interested in contributing an Original Technical Paper based on research by the author(s) (intended for Section I) or an Original Article of Professional or Technical interest related to Engineering. (Section II) to this journal please go through the publication checklist which can be downloaded from here.
Highlights
Birds use several vocalisations in various behavioural contexts for different purposes such as to maintain communication with a respective social group, to warn about predators and to request parental care
The work presented in this paper aimed to find out a less computationally intensive detection technique, which can classify the flight calls
Even though the current work is behind classification accuracy, that result is reached by a smaller network that requires less computational power
Summary
Birds use several vocalisations in various behavioural contexts for different purposes such as to maintain communication with a respective social group, to warn about predators and to request parental care. Birds do long sustained flights with the help of wind during migration. The vocalisations made by migratory birds to keep contact with the flock are known as flight calls. Flight calls have specific characteristics such as frequency modulated, tonal and monosyllabic [1] sounds. Flight calls generally have 50 to 300 ms duration, and their frequencies range from 1 to 11 kHz [1]. Flight calls are different from songs and alarm calls because these are relatively simple vocalisations that present a pattern of rapid frequency sweeps
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