棋盘和中断语音:与基于因子分析的频段相关的可理解性对比 (sa)
Kazuo Ueda1, Linh Le Dieu Doan2, Hiroshige Takeichi3
1Department of Acoustic Design, Faculty of Design/Research Center for Applied Perceptual Science/Research and Development Center for Five-Sense Devices, Kyushu University, 4-9-1 Shiobaru, Minami-ku, Fukuoka 815-8540, Japan.
棋盘语音刺激的可理解性取决于频段和持续时间. 四带刺激显示出最低的可理解性,这表明四个关键带是感知基本的语音提示通道.
科学领域:
- 听觉神经科学 听觉神经科学
- 语音感知研究研究 语音感知研究
- 在声学中的信号处理.
背景情况:
- 棋盘语音刺激涉及时间和频率的周期性中断.
- 以前的研究表明,可理解性因频段 (2-20) 和段时间 (20-320 ms) 而有所不同.
- 特定频段号码 (4-20) 和划分参数对可理解性的影响仍然不清楚.
研究的目的:
- 调查频段号码和划分参数对棋盘语音可理解性的影响.
- 为了确定语音感知频段的最佳数量.
- 使用概率总和模型探索语音可理解性的潜在机制.
主要方法:
- 使用不同频段数量 (4-20) 和段长度 (20-320 ms) 的象棋板刺激系统评估语音可理解性.
- 通过不同频率划分参数对不同频率划分参数的理解能力进行比较.
- 使用统计方法和概率总和模型分析可理解性数据.
主要成果:
- 对于四频段的棋盘刺激,语音可理解性最低,除了320毫秒的段落持续时间.
- 暂时中断的语音和八段棋盘刺激显示出更高的可理解性.
- 对于四波段和可能八波段的刺激,观察到U形的可理解度曲线.
- 频率划分参数在160和320毫秒的四频段刺激中引起了显著的可理解性差异.
结论:
- 基于因子分析的四个频段作为基本的语音提示通道来感知.
- 一个概率总和模型可以解释观察到的U形可理解度曲线.
- 了解频段的重要性对于开发有效的语音处理策略至关重要.
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