变化对上下文效应的影响和心理测量功能倾斜在说话速度正常化) 的影响
Caleb J King1, Chloe M Sharpe2, Anya E Shorey1
1Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky 40292, USA.
The Journal of the Acoustical Society of America
|March 14, 2024
概括
语音感知中的上下文变化会影响时间对比效应 (TCE). 说话者和句子的变化都减少了TCE,这表明复杂的相互作用会影响我们如何处理语音.
科学领域:
- 心理语言学 心理语言学
- 听觉感知是一种听觉感知.
- 语音处理 语音处理
背景情况:
- 声学背景显著影响语音感知.
- 之前的研究表明,说话者的变化,而不是内容的变化,减少了光谱对比效应.
- 语境变化的影响时间对比效应 (TCEs) 仍然未被探索.
研究的目的:
- 研究说话者和句子的变化如何影响语音感知中的时间对比效应 (TCE).
- 确定光谱对比效应的发现是否扩展到时间对比效应.
- 了解TCE中的声学,说话者和句子变化的相互作用.
主要方法:
- 利用来自Assgari和Stilp (2015) 的语境句子和条件,以快速和缓慢的说话速度.
- 操纵说话者的变化 (一个对200个说话者) 和句子的变化 (一个对200个句子).
- 在不同的可变性条件下测量TCE大小和心理测量函数斜率.
主要成果:
- 句子变化和说话者的变化都独立地减少了TCE大小.
- 谈话者的变化也导致了更浅的心理测量功能的斜率.
- 在各种条件中匹配说话速度并未等同TCE或斜率,表明单纯的速度之外的复杂性.
结论:
- 演讲者和句子的变化与声学因素相互作用,塑造时间对比效应.
- 这些发现突出了在语音感知中讲话速度正常化背后的复杂机制.
- 这项研究强调了在理解听觉感知时考虑多种变异源的重要性.
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