Vocal tract length and acoustics of vocalization in the domestic dog (Canis familiaris).
Vocal tract length and acoustics of vocalization in the domestic dog (Canis familiaris).
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发表时间：
1999-10
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通讯作者：
Tobias Riede;Tecumseh Fitch
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作者：
Tobias Riede;Tecumseh Fitch
声道的物理性质导致发声期间产生共振峰。在某些动物（包括人类）中，接收者可以根据共振峰特征得出有关发送者特征的信息（例如身体大小）。驯化和选择性育种导致狗（Canisimilaris）的头部大小和形状存在很大差异，这表明声道长度可能存在很大差异，这可能导致共振峰行为影响品种间的交流。对多个品种的狗进行了侧位X光检查，这些狗的体型从约克夏犬（2.5公斤）到德国牧羊犬（50公斤）不等，并用于测量声道长度。此外，我们还记录了一些狗的声音信号（咆哮）。在声道长度、体重和共振峰色散之间发现了显着的相关性，这表明共振峰色散可以提供有关发声者身体尺寸的信息。由于声道长度和第一共振峰之间的相关性较低，我们预测声道形状不均匀。
The physical nature of the vocal tract results in the production of formants during vocalisation. In some animals (including humans), receivers can derive information (such as body size) about sender characteristics on the basis of formant characteristics. Domestication and selective breeding have resulted in a high variability in head size and shape in the dog (Canis familiaris), suggesting that there might be large differences in the vocal tract length, which could cause formant behaviour to affect interbreed communication. Lateral radiographs were made of dogs from several breeds ranging in size from a Yorkshire terrier (2.5 kg) to a German shepherd (50 kg) and were used to measure vocal tract length. In addition, we recorded an acoustic signal (growling) from some dogs. Significant correlations were found between vocal tract length, body mass and formant dispersion, suggesting that formant dispersion can deliver information about the body size of the vocalizer. Because of the low correlation between vocal tract length and the first formant, we predict a non-uniform vocal tract shape.