发育变化 在儿童的语音频率权重.
A K Bosen1, A Frenette2, M Spratford1
1Boys Town National Research Hospital, Omaha, Nebraska, USA.
Ear and hearing
|November 7, 2025
概括
儿童的语音可理解性随着年龄的增长而变化,年长的儿童更多地依赖更高频段. 对于准确的语音识别模型,需要考虑频率重要性权重中的这些发育变化.
科学领域:
- 听力学 听力学是指听力学.
- 发展心理学 发展心理学
- 语音语言病理学 语言病理学
背景情况:
- 语音可理解性估计依赖于光谱带可听性和重要性权重.
- 儿童的临床语音可理解度量需要根据年龄进行特定的调整,因为语音识别的发育变化.
- 以前的研究表明,儿童使用光谱线索的发育转变,但频段重要性中的个体差异需要验证.
研究的目的:
- 调查频段重要性权重的年龄相关差异,用于儿童的语音识别.
- 探索这些乐队重要性权重与词汇和认知能力的发育变化之间的关系.
主要方法:
- 42名听力正常的儿童 (6-13岁) 进行过的词识别任务.
- 听觉刺激被过成六个频段 (250-8000赫兹),识别准确性根据频段的存在/缺席而回归.
- 孩子们还完成了标准化的词汇和认知评估.
主要成果:
- 频率重要性权重显示了与年龄相关的变化,特别是对于以2000和4000赫兹为中心的频段,年龄较大的儿童分配更高的权重.
- 特定的频段 (500,1000,2000 Hz) 对于识别单词比识别非单词更重要.
- 在控制年龄后,词汇和认知任务没有预测乐队重要性权重,尽管侧边任务的性能预测了整体识别准确性.
结论:
- 频段重要性权重在儿童的发育过程中演变.
- 目前预测儿童语音识别的模型如果不考虑这些发育变化,可能会高估准确性.
- 需要进一步的研究来检查听力损失对这些发育轨迹的影响.
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