Effects of landscape and distance in automatic audio based bird species identification
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2023-07-13
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Mcode
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Language
en
Pages
10
245-254
245-254
Series
The Journal of the Acoustical Society of America, Volume 154, issue 1
Abstract
The present work focuses on how the landscape and distance between a bird and an audio recording unit affect automatic species identification. Moreover, it is shown that automatic species identification can be improved by taking into account the effects of landscape and distance. The proposed method uses measurements of impulse responses between the sound source and the recorder. These impulse responses, characterizing the effect of a landscape, can be measured in the real environment, after which they can be convolved with any number of recorded bird sounds to modify an existing set of bird sound recordings. The method is demonstrated using autonomous recording units on an open field and in two different types of forests, varying the distance between the sound source and the recorder. Species identification accuracy improves significantly when the landscape and distance effect is taken into account when building the classification model. The method is demonstrated using bird sounds, but the approach is applicable to other animal and non-animal vocalizations as well.Description
Publisher Copyright: © 2023 Acoustical Society of America.
Keywords
bird recognition, impulse response measurements
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Citation
Somervuo, P, Lauha, P & Lokki, T 2023, ' Effects of landscape and distance in automatic audio based bird species identification ', The Journal of the Acoustical Society of America, vol. 154, no. 1, pp. 245-254 . https://doi.org/10.1121/10.0020153