带有耳植入器的听众的时间语音暗示感知取决于这些暗示和之前的声音能量之间的时间
Anna R Tinnemore1,2, Erin Doyle1, Matthew J Goupell1,2
1Hearing and Speech Sciences Department, University of Maryland, College Park, Maryland 20742, USA.
The Journal of the Acoustical Society of America
|October 23, 2024
概括
耳植入物 (CI) 用户依赖于精确的语音时间. 短暂的句子和单词之间的暂停,可能是由于前向掩盖,会对语音理解产生负面影响,特别是对于单词初始的声音.
科学领域:
- 听觉神经科学 听觉神经科学
- 语音感知 语音感知
- 人与计算机的交互
背景情况:
- 耳植入物 (CI) 利用时间线索来理解语音.
- 时间精度对于区分语音的声音至关重要.
- 之前的研究指出,人们对时间线索的感知取决于背景.
研究的目的:
- 调查前方掩盖作为影响CI用户语音感知机制.
- 检查刺激间间隔 (ISI) 持续时间对时间线索感知的影响.
- 确定前向掩盖是否会影响语音理解,当时间线索嵌入句子时.
主要方法:
- CI用户完成了语音分类任务.
- 使用了四个不同时间尺寸的连续.
- 在句子和目标单词之间测试了0,25,50,75和100毫秒的ISI.
主要成果:
- 随着ISI持续时间的缩短,性能下降,特别是对于单词初始音符.
- 这种效应表明,前方掩盖会影响语音感知.
- 这些发现支持前向掩饰作为CI语音理解的一个因素.
结论:
- 前方掩盖显著影响耳植入物用户的语音理解.
- 减少刺激间的间隔加剧了前方掩盖效应.
- 了解这些影响对于改善CI语音处理策略至关重要.
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