论文标题
时间域速度矢量用于重新元素传播
Time Domain Velocity Vector for Retracing the Multipath Propagation
论文作者
论文摘要
我们在概念上和计算上提出了声音速度的一种简单形式，该形式可看一看直接和间接声波之间的干扰。与文献中的大多数方法不同，它共同利用了主动和反应性声音强度测量，通常是从一阶Ambisonics记录中得出的。这种表示既有可能是直接分析声音多径传播的有价值工具，也是用于音频和声学中机器学习算法的新空间特征格式。作为展示，我们证明了到达的方向和声源的范围可以估计为这种方法的发展。据作者的最佳知识，这是第一次从Ambisonics录音中估算范围。
We propose a conceptually and computationally simple form of sound velocity that offers a readable view of the interference between direct and indirect sound waves. Unlike most approaches in the literature, it jointly exploits both active and reactive sound intensity measurements, as typically derived from a first order ambisonics recording. This representation has a potential both as a valuable tool for directly analyzing sound multipath propagation, as well as being a new spatial feature format for machine learning algorithms in audio and acoustics. As a showcase, we demonstrate that the Direction-Of-Arrival and the range of a sound source can be estimated as a development of this approach. To the best knowledge of the authors, this is the first time that range is estimated from an ambisonics recording.
