Acoustic correlates of individuality in the cries of human infants.
Acoustic correlates of individuality in the cries of human infants.
复制标题
人类婴儿哭声中个性的声学相关性。
DOI：
10.1002/dev.420170310
复制
发表时间：
1984
影响因子：
2.2
通讯作者：
Tomic,T
中科院分区：
文献类型：
--
作者：
Gustafson,GE;Green,JA;Tomic,T
在这项研究中，研究了区分人类婴儿哭声的声学特征。由400名无父母的成年人进行的识别任务被用来将20名30天大的婴儿分类为容易或难以识别，仅根据他们的磁带记录的哭声。然后比较了容易识别和难以识别的婴儿的哭声的持续时间，基频，频谱中的峰值频率，信噪比和选定频带中的能量。结果表明，这些措施中的每一个都区分了容易识别和难以识别的婴儿的哭声。这种冗余应该使哭声对选定的声学参数的劣化具有鲁棒性，从而增强其携带关于跨越距离的个人身份的信息的能力。
The acoustic features that differentiate the cries of individual human infants were examined in this study. A recognition task, performed by 400 nonparent adults, was used to classify twenty 30‐day‐old infants as easy or difficult to recognize on the sole basis of their tape recorded cries. The cries of easy‐ vs difficult‐to‐recognize infants were then compared on measures of duration, fundamental frequency, peak frequency in the spectrum, signal‐to‐noise ratios, and energy in selected frequency bands. The results indicated that each of these measures differentiated the cries of easy‐ vs difficult‐to‐recognize infants. Such redundancy should make the cry robust to degradations of selected acoustic parameters, thus enhancing its ability to carry information about individual identity across distances.