面罩对声学特征的影响以及普通话中文演讲的可理解性
概括
面罩显著改变了语音声学,减少了时间调制深度和光谱倾斜,这降低了普通话中文在噪音中的语音可理解性,但不是在安静中. 像TM深度和光谱倾斜这样的声学特征是噪音环境中可理解性的关键.
科学领域:
- 声学语音学的声音学
- 语音感知 语音感知
- 人与计算机的交互
背景情况:
- 面罩是常用的,影响了沟通.
- 了解口罩引起的语音变化对于有效的沟通至关重要,特别是在杂的环境中.
研究的目的:
- 为了调查由于手术和KN95口罩而导致的普通话中文运行演讲的声学变化.
- 评估这些口罩在安静和噪音条件下对语音可理解性的影响.
- 探索声学修饰和语音可理解性之间的关系.
主要方法:
- 录制了24位使用手术口罩,KN95口罩或没有口罩的母语人士的普通话中文句子.
- 分析的声学特征:时间调制 (TM) 深度,说话速度,光谱倾斜和基本频率 (F0) 变化.
- 在 -2 和 -5 dB 信号噪音比率下,在安静和多语者语中评估语音可理解性.
主要成果:
- 与没有面具相比,面具显著降低了TM深度和改变了光谱倾斜.
- 戴口罩的说话率增加;KN95口罩的平均F0更高,F0标准偏差减少.
- 噪音中的语音可理解性在戴口罩时显著降低,但在安静时不受影响.
结论:
- 面罩声学上改变了语音,主要影响了噪音的可理解性.
- 冥想深度和光谱倾斜是语音可理解性的关键声学相关物,特别是在具有挑战性的听力条件下.
相关概念视频
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The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids, corniculates, and...