Tonal vocalizations in a noisy environment: an approach to their semi-automatic analysis and examples of its application

Anais da Academia Brasileira de Ciências

Roger Mundry¹  Christian Sommer¹ 

[1] ,Free University of Berlin Institute of Biology Department of Behavioural BiologyBerlin,Germany

关键词: tonal vocalizations;    contour measurement;    software;    vocalizações tonais;    medições de contorno;    programa computacional;   

DOI  :  10.1590/S0001-37652004000200016

来源: SciELO

【 摘 要 】

Vocalizations with an emphasized fundamental are common in many species of animals. Such calls can presumably be sufficiently described by measures of their fundamental shape or 'contour'. Here we describe a software we developed to analyze such vocalizations semi-automatically. The software is particularly designed to cope with vocalizations recorded in a noisy environment. Some of the algorithms implemented (e.g. signal detection, contour detection, contour measurement, validation) and some preliminary applications dealing with calls of different species of birds are presented. Finally, we briefly discuss the possible significance of such vocalizations.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License