Mostrando recursos 1 - 4 de 4

  1. The use of automated acoustic identification software for bat surveys in the neotropics : Gaps and opportunities

    Menon, Amrita Madhukumar
    As populações de morcegos são conhecidas por serem afetadas por atividades antropogênicas,njá que os Chiroptera é um grupo extremamente diverso que ocupa quase todos os nichos disponíveis no meio terrestre. Assim, os morcegos são considerados bons bioindicadores para monitorar mudanças no meio ambiente, mas seu valor como tal também depende da facilidade de monitorar e detectar tendências demográficas em suas populações. O interesse a longo prazo dos pesquisadores na acústica dos morcegos resulta do fato de que é um método não-invasivo e eficiente em termos de tempo para monitorar os padrões espaço-temporais da diversidade e atividade de morcegos. A análise...
    (application/pdf) - 22-mar-2018

  2. Estudio de la bioacústica del zorzal andino (Turdus chiguanco) con la aplicación del software Audacity, v. 2.0

    Miguel Orellana, Aldo
    Objectives: To determine the bioacoustics characteristics of the Turdus chiguanco; among these, the amplitude, frequency and duration in different voices. Methods: The research method was descriptive, which allowed collecting the bioacoustics data during 2011 and 2012 and processing them with the application of Audacity software version 2.0. Results: Four types of voices were identified: Voice of flight, Stationary Voice; Voice of Contact and Voice of singing. In the voice of flight, average values were determined: 52,82 dB maximum amplitude; medium amplitude 0,05 dB; -13,91 dB minimum amplitude; maximum frequency 6,8 kHz; medium frequency 0,63 KHz; minimum frequency 0,27 kHz; 1,05 seconds of duration. In the...
    (application/pdf) - 13-jun-2018

  3. Estudio de la bioacústica del zorzal andino (Turdus chiguanco) con la aplicación del software Audacity, v. 2.0

    Miguel Orellana, Aldo
    Objectives: To determine the bioacoustics characteristics of the Turdus chiguanco; among these, the amplitude, frequency and duration in different voices. Methods: The research method was descriptive, which allowed collecting the bioacoustics data during 2011 and 2012 and processing them with the application of Audacity software version 2.0. Results: Four types of voices were identified: Voice of flight, Stationary Voice; Voice of Contact and Voice of singing. In the voice of flight, average values were determined: 52,82 dB maximum amplitude; medium amplitude 0,05 dB; -13,91 dB minimum amplitude; maximum frequency 6,8 kHz; medium frequency 0,63 KHz; minimum frequency 0,27 kHz; 1,05 seconds of duration. In the...
    (application/pdf) - 13-jun-2018

  4. Reconocimiento automatizado de señales bioacústicas: Una revisión de métodos y aplicaciones

    Caycedo-Rosales, Paula Catalina; Ruiz-Muñoz, José Francisco; Orozco-Alzate, Mauricio
    During the past decade, numerous research studies and applications on automated bioacoustic monitoring have been published; however, such studies are scattered in the literature of engineering and life sciences. This paper presents a review on fundamental concepts of automated acoustic monitoring. Our aim is to compare and categorize —in a taxonomy of techniques DSP/PR— the contributions of published research studies and applications; in order to suggest some directions for future research and highlight challenges and opportunities related to the deployment of this technology in Colombia.PACS: 43.60.-c, 43.60.Lq, 43.80.-n
    (application/pdf) - 13-jun-2018

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