The vocal repertoire of the domesticated zebra finch: a data-driven approach to decipher the information-bearing acoustic features of communication signals.
The vocal repertoire of the domesticated zebra finch: a data-driven approach to decipher the information-bearing acoustic features of communication signals.
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DOI：
10.1007/s10071-015-0933-6
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发表时间：
2016-03
期刊：
影响因子：
2.7
通讯作者：
Theunissen FE
中科院分区：
文献类型：
--
作者：
Elie JE;Theunissen FE
虽然动物发声通信呼叫的声学特征的通用代码可能不存在，但对发声类别的独特声学特征的彻底分析不仅对于破译特定物种的声学代码而且对于理解通信信号的进化以及用于产生和理解它们的机制都很重要。在这里，我们记录了超过8,000个例子，几乎所有的声音驯化斑胸草雀，Taeniopygia guttata：发声建立联系，形成和维持配对债券，发出警报，传达痛苦或广告饥饿或侵略意图。我们使用完整的表示，避免任何先验假设的声学代码，以及经典的生物声学措施，可以提供更直观的解释，每个发声类型的特点。然后，我们使用这些声学特征，严格确定潜在的信息承载的声学特征，为每种发声类型，使用一种新的正则化分类器和无监督聚类算法。发声类别是由其频谱的形状和其音高显着性（嘈杂的音调发声），但不是特别是由他们的基本频率。值得注意的是，斑胸草雀发声的频谱形状包含在类别之间系统地变化的峰或共振峰，并且这将通过发声器官（源）和上声道（过滤器）的主动控制来产生。
Although a universal code for the acoustic features of animal vocal communication calls may not exist, the thorough analysis of the distinctive acoustical features of vocalization categories is important not only to decipher the acoustical code for a specific species but also to understand the evolution of communication signals and the mechanisms used to produce and understand them. Here, we recorded more than 8,000 examples of almost all the vocalizations of the domesticated zebra finch, Taeniopygia guttata: vocalizations produced to establish contact, to form and maintain pair bonds, to sound an alarm, to communicate distress or to advertise hunger or aggressive intents. We characterized each vocalization type using complete representations that avoided any a priori assumptions on the acoustic code, as well as classical bioacoustics measures that could provide more intuitive interpretations. We then used these acoustical features to rigorously determine the potential information-bearing acoustical features for each vocalization type using both a novel regularized classifier and an unsupervised clustering algorithm. Vocalization categories are discriminated by the shape of their frequency spectrum and by their pitch saliency (noisy to tonal vocalizations) but not particularly by their fundamental frequency. Notably, the spectral shape of zebra finch vocalizations contains peaks or formants that vary systematically across categories and that would be generated by active control of both the vocal organ (source) and the upper vocal tract (filter).
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影响因子：
2.5
作者：
Ballentine, Barbara;Searcy, William A.;Nowicki, Stephen
通讯作者：
Nowicki, Stephen
影响因子：
64.8
作者：
Fee, MS;Shraiman, B;Mitra, PP
通讯作者：
Mitra, PP
影响因子：
2.3
作者：
Elie, Julie E.;Mathevon, Nicolas;Vignal, Clementine
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Vignal, Clementine
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作者：
Fitch, WT;Kelley, JP
通讯作者：
Kelley, JP
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2.5
作者：
Elie, Julie E.;Mariette, Mylene M.;Vignal, Clementine
通讯作者：
Vignal, Clementine