Independent and Combined Effects of Fundamental Frequency and Vocal Tract Length Differences for School-Age Children's Sentence Recognition in a Two-Talker Masker.
Independent and Combined Effects of Fundamental Frequency and Vocal Tract Length Differences for School-Age Children's Sentence Recognition in a Two-Talker Masker.
复制标题
基本频率和声带长度差异对两个说话者掩蔽器中学龄儿童句子识别的独立和综合影响。
DOI：
10.1044/2020_jslhr-20-00327
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Leibold,LoriJ
中科院分区：
文献类型：
--
作者：
Flaherty,MaryM;Buss,Emily;Leibold,LoriJ
本研究以儿童(5~17岁)和成人(18~39岁)为被试，考察了基频差异和声道长度差异对儿童语音识别的独立贡献和联合贡献。句子识别阈值是在两个人的掩蔽者中测量的。目标句的F0和VTL与掩蔽者的均值相同，或者被数字化修改，使得目标句和掩蔽者在F0上不同(实验1)，在VTL上不同(实验2)，或者在F0和VTL上都不同(实验3)。结果表明，儿童从F0或VTL差异中受益的能力(实验1和实验2)取决于听者的年龄，较小的儿童在言语接收阈值上的改善比较大的儿童和成年人要小。年龄效应在综合线索条件下也很明显(实验3)，但儿童表现出比仅F0或仅VTL操作更大的进步。结论儿童从目标言语和掩蔽言语之间的F0或VTL差异中受益的能力有一个长期的发展模式。年幼的儿童未能像年长的儿童和成年人那样利用F0和VTL的差异，但当线索结合在一起时，确实显示出强劲的好处，支持了这样的假设，即与年长的儿童和成年人相比，年龄较小的儿童更严重地依赖多余的线索。
PurposeThe purpose of this study was to examine the independent and combined contributions of fundamental frequency (F0) and vocal tract length (VTL) differences on children's speech-in-speech recognition in the presence of a competing two-talker masker.MethodParticipants were 64 children (5–17 years old) and 25 adults (18–39 years old). Sentence recognition thresholds were measured in a two-talker masker. Target sentences had either the same mean F0 and VTL of the masker or were digitally altered so that the target and masker differed in F0 (Experiment 1), differed in VTL (Experiment 2), or differed in both F0 and VTL (Experiment 3). To determine the benefit, masking release was computed by subtracting thresholds in each shifted condition from the threshold in the unshifted condition.ResultsResults demonstrate that children's ability to benefit from either F0 or VTL differences (Experiments 1 and 2) depended on listener age, with younger children showing less improvement in speech reception thresholds compared to older children and adults. Age effects were also evident in the combined-cue conditions (Experiment 3), but children showed greater improvements compared to F0-only or VTL-only manipulations.ConclusionsThere was a prolonged pattern of development in children's ability to benefit from F0 or VTL differences between target and masker speech. Young children failed to capitalize on F0 and VTL differences to the same extent as older children and adults but did show a robust benefit when the cues were combined, supporting the hypothesis that younger children rely more heavily on redundant cues compared to older children and adults.
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DOI：
10.1121/1.3050321
发表时间：
2009-02
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
Vestergaard MD;Fyson NR;Patterson RD
通讯作者：
Patterson RD
DOI：
10.1121/1.2082567
发表时间：
2005-10
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
F. Wightman;D. Kistler
通讯作者：
F. Wightman;D. Kistler
学龄儿童声音感知的发展与性别线索无关
影响因子：
4.6
作者：
L. Nagels;E. Gaudrain;D. Vickers;P. Hendriks;D. Başkent
通讯作者：
D. Başkent
影响因子：
2.4
作者：
Fitch, WT;Giedd, J
通讯作者：
Giedd, J
影响因子：
2.4
作者：
TITZE, IR
通讯作者：
TITZE, IR