完全和减少订单模型 (L) 之间的模拟准确性只是明显的差异
Hermes Sampedro Llopis1, Christina Kjær1, Allan P Engsig-Karup2
1Acoustic Technology Group, Department of Electrical and Photonics Engineering, Technical University of Denmark, Kongens Lyngby, Denmark.
The Journal of the Acoustical Society of America
|January 4, 2024
概括
模型订单减少加速了房间声学模拟. 这项研究发现,减少顺序模型的感知误差值在1%到0.1%之间,根平均平方误差,超出这个值,人类听众会发现差异.
科学领域:
- 计算声学是一种计算声学.
- 精神声学是一种精神声学.
- 数字方法 数字方法.
背景情况:
- 模型顺序减小 (MOR) 技术通过简化复杂的波浪现象来加速计算声学模拟.
- 在MOR中,模拟速度和物理准确性之间存在一个权衡,但这些简化对感知的影响尚不清楚.
研究的目的:
- 为了确定降低级室声学模型中的物理误差极限,该误差极限对于人类听众来说仍然无法辨别.
- 在计算加速声学模拟中建立可接受错误的门.
主要方法:
- 模拟各种二维房间几何形状和声时间的模拟使用减少顺序模型进行.
- 采用了三种替代强制选择的听力测试来评估人类对模拟准确性的感知.
- 通过统计分析,确定了完全和减少顺序模型刺激之间的显著感知差异.
主要成果:
- 在降低序列房间声学模型中,错误的感知值被发现在1%和0.1%之间,相对根的平均平方误差.
- 与相对根的平均平方误差低于这个值生成的刺激并没有导致统计学上显著的感知差异.
- 在这个值以上,人类听众可以可靠地区分原始和减少顺序模型模拟.
结论:
- 在室内声学中,MOR技术可以用于显著的计算加速.
- 一个特定的误差范围 (0.1%1%RMSE) 存在,其中MOR近似值是可接受的.
- 了解这种感知极限对于开发高效而准确的房间声学模拟工具至关重要.
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