Finite Difference Room Acoustic Modelling on a General Purpose Graphics Processing Unit
Finite Difference Room Acoustic Modelling on a General Purpose Graphics Processing Unit
复制标题
通用图形处理单元上的有限差分房间声学建模
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Paulo Dias
中科院分区：
文献类型：
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作者：
A. Southern;D. Murphy;G. Campos;Paulo Dias
虚拟房间的详细和令人信服的漫游听觉需要很大的处理能力。减少该要求的一种方法是预先计算在整个空间的位置处的房间脉冲响应（RIR）的数据集。然后，处理资源可以在虚拟收听位置实时变化时使用数据集集中于RIR内插和卷积。最近的工作艾德了基于波的模型相对于传统的基于光线的方法的适用性。尽管基于波的方法生成RIR数据集节省了计算量，但处理时间仍然很长。本文提出了一种基于波的通用图形处理器上执行的实现。结果验证的方法，并表明，并行化提供了显着的加速。
Detailed and convincing walkthrough auralizations of virtual rooms requires much processing capability. One method of reducing this requirement is to pre-calculate a data-set of room impulse responses (RIR) at locations throughout the space. Processing resources may then focus on RIR interpolation and convolution using the dataset as the virtual listening position changes in real-time. Recent work identified the suitability of wave-based models over traditional ray-based approaches for walkthrough auralization. Despite the computational saving of wave-based methods to generate the RIR dataset, processing times are still long. This paper presents a wave-based implementation for execution on a general purpose graphics processing unit. Results validate the approach and show that parallelisation provides a notable acceleration.