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The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
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Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
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纯音调刺激 (PTS) 程序后语音质量的变化

Lady Catherine Cantor-Cutiva1, Pasquale Bottalico2, Juliana Codino3

  • 1Department of Communication Sciences and Disorders; The University of Iowa; Iowa City; United States.

Revista de investigacion e innovacion en ciencias de la salud : RIICS
|March 17, 2025
PubMed
概括

纯音调刺激 (PTS) 在有和没有声音障碍的个体中改善了语音质量. 声学分析显示基本频率和音调强度增加,这表明通过这种听觉反技术增强了声乐生产.

关键词:
声音的声音的声音的声音这就是Voz Voz.声学 声学 声学 声学声学 声学是指声学这是一个光谱图,一个光谱图.刺激与色的纯粹的目的.纯色调刺激的纯色调刺激频谱图是指光谱图中的光谱.声乐疗法 声乐疗法 声乐疗法语音治疗是一种语音疗法.

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科学领域:

  • 语音和听力科学 语言和听力科学
  • 声学分析 声学分析
  • 声音障碍 声音障碍

背景情况:

  • 听觉反对于监测和调整声乐特征至关重要,以保持最佳的语音质量.
  • 纯音调刺激 (PTS) 是一种听觉技术,使用双耳纯音调来修改说话的基本频率和声音范围.
  • 这种方法用于对话性语音训练和治疗.

研究的目的:

  • 研究纯音调刺激 (PTS) 对语音产生的影响.
  • 描述PTS应用后声音的声学变化.
  • 为了比较PTS对语音障碍和没有语音障碍的人的影响.

主要方法:

  • 39名参与者 (28名有声音障碍,11名声音正常) 接受了双耳PTS练习.
  • 声学语音参数 (基本频率,音调强度,声波与噪声比,光滑的声尖峰突出) 从PTS前后持续的母音/a/录音中进行了分析.
  • 语音质量通过使用视觉模拟尺度 (VAS) 对窄带 (NB) 光谱的评分进行了定性评估.

主要成果:

  • 在PTS后观察到基本频率的统计显著增加 (除了声音正常的男性).
  • 音调强度和和声调与噪音比率在所有参与者中都增加,无论性别或语音障碍状态如何.
  • 根据NB光谱图分析,VAS评级表明语音质量有所改善.

结论:

  • 纯音调刺激 (PTS) 导致可测量的语音质量改善.
  • 声学和定性评估证实了PTS在增强不同发言者的声乐生产方面的有效性.
  • 作为语音训练和康复的治疗工具,PTS显示出前景.