Acoustic censusing using automatic vocalization classification and identity recognition

The Journal of the Acoustical Society of America
Kuntoro AdiTomasz S Osiejuk

Abstract

This paper presents an advanced method to acoustically assess animal abundance. The framework combines supervised classification (song-type and individual identity recognition), unsupervised classification (individual identity clustering), and the mark-recapture model of abundance estimation. The underlying algorithm is based on clustering using hidden Markov models (HMMs) and Gaussian mixture models (GMMs) similar to methods used in the speech recognition community for tasks such as speaker identification and clustering. Initial experiments using a Norwegian ortolan bunting (Emberiza hortulana) data set show the feasibility and effectiveness of the approach. Individually distinct acoustic features have been observed in a wide range of animal species, and this combined with the widespread success of speaker identification and verification methods for human speech suggests that robust automatic identification of individuals from their vocalizations is attainable. Only a few studies, however, have yet attempted to use individual acoustic distinctiveness to directly assess population density and structure. The approach introduced here offers a direct mechanism for using individual vocal variability to create simpler and more accur...Continue Reading

References

Nov 1, 1993·The Journal of the Acoustical Society of America·J R Buck, P L Tyack
Jan 11, 2005·Behavioural Processes·Tomasz S OsiejukSvein Dale
Mar 12, 2005·The Journal of the Acoustical Society of America·Patrick J CleminsAnne Savage
Aug 1, 2006·The Journal of the Acoustical Society of America·Patrick J Clemins, Michael T Johnson
Apr 10, 2009·The Journal of the Acoustical Society of America·Tiago A MarquesPeter L Tyack
Jan 1, 1992·American Journal of Primatology·Thomas M ButynskiDaniel M Weary

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Citations

Apr 17, 2012·The Journal of the Acoustical Society of America·Diana PonceSteven Swartz
Sep 8, 2010·The Journal of the Acoustical Society of America·Judith C BrownAnna Nousek-McGregor
Nov 30, 2012·Biological Reviews of the Cambridge Philosophical Society·Tiago A MarquesPeter L Tyack
Aug 4, 2015·The Journal of the Acoustical Society of America·Peter M ScheifeleKathryn Laclede
May 10, 2017·PloS One·Pavel Linhart, Martin Šálek
Jun 28, 2012·Sensors·Kim Arild SteenOle Green
Feb 24, 2011·Current Opinion in Otolaryngology & Head and Neck Surgery

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