在突出位置下的元音感知:检查F0,持续时间和分布信息的作用
1Linguistics and English Language, The University of Edinburgh, Edinburgh, United Kingdom.
The Journal of the Acoustical Society of America
|October 25, 2023
概括
普罗索迪克突出影响美国英语元音感知,持续时间作为一个关键的内在提示. 突出和更长的持续时间增强了形式的感知,特别是对于某些元音类型.
科学领域:
- 语音学 语音学 语音学
- 声学语音学的声音学
- 语音感知 语音感知
背景情况:
- 以基本频率 (F0) 和持续时间的变化为标志的突出突出,在语音感知中起着至关重要的作用.
- 声母感知受到音响线索的影响,如形式,F0和持续时间,但突出程度如何与这些线索相互作用是复杂的.
- 以前的研究表明,母音的产生随着突出而变化,这表明有感知上的后果.
研究的目的:
- 调查如何通过F0和持续时间操纵的前突出影响美国英语元音的感知.
- 确定使用持续时间作为突出地位的提示是否灵活,并受其分布性质的影响.
- 检查母音感知中母音内在线索 (形式,持续时间) 和突出线索 (F0,持续时间) 之间的相互作用.
主要方法:
- 进行了两项实验,使用了四个不同时间和形式的美国英语元音连续.
- 实验1检查了在操纵F0基础的前突出位置下对元音的感知.
- 实验2通过改变持续时间的分布式信息性来调查提示使用,作为突出性的提示.
主要成果:
- 在这两项实验中,持续时间始终被确定为母音内在的线索.
- 基于F0的突出影响了元音感知,通过弥补突出下的元音空间外缘化.
- 增加的持续时间和基于F0的突出性协同增强了对形成性线索的感知.
- 操纵持续时间的分布式信息性对提示使用产生了最小的影响.
结论:
- 声母感知是以高度依赖的方式调节的,与语音生产的发现保持一致.
- 持续时间的功能是双重的,作为一个母音内在的暗示符号和一个与突出关系的暗示符号,可以增强形式感知.
- 这些发现突出了前性线索在塑造对元音等细分特征的感知方面的复杂,多方面的作用.
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