语言背景和噪音类型对语音理解的影响
Laura P Fitzgerald1, Gayle DeDe2, Jing Shen1
1Speech Perception and Cognition Laboratory, Department of Communication Sciences and Disorders, College of Public Health, Temple University, Philadelphia, PA, United States.
听众使用语言上下文来理解在杂环境中的言语. 这项研究表明,在复杂的喋喋不休噪音中,上下文有助于理解,但不是稳定状态噪音,突出了感知和语言复杂性之间的相互作用.
科学领域:
- 听觉感知是一种听觉感知.
- 语音处理 语音处理
- 精神声学是一种精神声学.
- 认知神经科学是一种认知神经科学.
背景情况:
- 在背景噪音中理解语音是具有挑战性的.
- 语言上下文可以通过填补声学空白来帮助语音感知.
- 在复杂的演讲中,感知和语言复杂性之间的相互作用尚未得到充分理解.
研究的目的:
- 为了确定语音噪声信息掩盖是否会影响口语句子对的理解.
- 研究语音处理过程中感知复杂性 (噪音类型) 和语言复杂性 (上下文一致性) 之间的相互作用.
主要方法:
- 测量了理解的准确性,反应时间和学生的反应.
- 参与者 (n=40) 倾听不同语言复杂度的句子对 (预期的示例,类别内违规,类别间违规).
- 在两种噪音条件下呈现了语音:多个说话者语和光谱形状稳定状态噪音 (SSN).
主要成果:
- 准确度受语言背景的影响,但不受噪音类型的影响.
- 瞳孔膨胀数据显示了噪音类型和环境之间的相互作用.
- 语言背景只在更复杂的感知语噪音条件下促进了语音处理.
结论:
- 听众利用语言上下文来克服感知上复杂的背景噪音带来的挑战.
- 研究结果表明,感知和语言复杂性如何共同影响从扩展的语音段构建意义.
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