对板块厚度的听觉感知
Samuel Poirot1, Antoine Bourachot1, Stefan Bilbao2
1Aix Marseille Université, CNRS, PRISM, Marseille, France.
JASA express letters
|January 3, 2024
概括
这项研究揭示了声音合成如何模仿板块厚度感知. 增加的缓冲增强了感知厚度,而高频能量级联则暗示更薄的物体.
科学领域:
- 声学和精神声学学术.
- 计算物理学的计算物理.
- 声音合成 声音合成
背景情况:
- 对物理物体属性的听觉感知对于理解声音至关重要.
- 板块厚度显著影响声辐射和振动模式.
- 声音合成需要对物理现象进行准确的建模,以实现现实的感知.
研究的目的:
- 调查声学线索,这些线索决定了对板厚的听觉感知.
- 测试关于阻尼,非线性现象和模态频率的影响的假设.
- 通过将精神声学发现纳入材料特性来增强声音合成模型.
主要方法:
- 使用Föppl-von Kármán系统的数值分辨率生成听觉刺激.
- 进行了听力测试,以评估板块厚度的感知.
- 系统地改变了减噪,冲击强度,并分析了所产生的声信号.
主要成果:
- 证实,增加的整体阻尼会导致更大的板厚的感知.
- 观察到,由更高的冲击强度引发的向更高频率的能量布与更薄的板块有关.
- 确定了与和光谱分布相关的特定声学线索,这些线索与感知厚度相关.
结论:
- 听觉对板厚的感知受到阻尼和光谱特征的强烈影响.
- 声音合成可以通过操纵这些声学线索来有效模拟感知厚度.
- 结果为创建更现实的和感知精确的声音模型提供了洞察力.
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