Tire volume velocity source - Uniform linear array responses (HBK)

This dataset consists of acoustic impulse responses (AIRs) measured at Hottinger Brüel \& Kjær in Virum, Denmark. These AIRs were captured using a linear array of 11 microphones, which were shifted away from a volume velocity source (a Brüel \& Kjær Omni-source placed inside of a car tyre) in regular steps of 0.1 m, resulting in a total of 99 measurement positions. The source was also shifted around the tyre in 17 equiangular positions, and the AIRs were captured using the Maximum Length Sequence (MLS) method with a pink noise signal. Finally, a reference microphone was used to capture the far field contributions of the source and potentially used as validation. The layout of the HBK measurement can be seen in the layout figure (measurment_layout.png). The data are available as H5 (Hierarchical Data Formats) with the following structure: Dataset "HBK data - HDF5 datastructure" Dataset.attributes ├── disambiguate_measurement_data (1) 'Nsources x Npositions x Nmics x Ntaps' └── fs (1) 8000 ├── measurement_data (17x9x11x2000) float64 ├── mic_coords (9x11x2) float64 ├── ref_pos (2x1) float64 ├── reference_data (17x2000) float64 └── src_pos (2x17) float64 Use with Matlab: https://mathworks.com/help/matlab/hdf5-files.html Use with Python: https://docs.h5py.org/en/stable/ This dataset is part of the project Danish Sound Cluster project titled "Physics-informed Neural Networks for Sound Field Reconstruction" [url]. Find more datasets here: Project Page

本数据集包含在丹麦维鲁姆（Virum）的霍廷格·布鲁埃尔&基耶尔（Hottinger Brüel & Kjær，简称HBK）测量得到的声学冲激响应（Acoustic Impulse Responses，AIRs）。本次测量采用由11支麦克风组成的线阵列，以0.1米的固定步长从体积速度声源（置于汽车轮胎内部的布鲁埃尔&基耶尔全向声源）处向外平移，共计设置99个测量位置。声源同时以17个等角位置环绕轮胎移动，且采用基于粉红噪声信号的最大长度序列（Maximum Length Sequence，MLS）方法采集声学冲激响应。
此外，实验采用参考麦克风采集声源的远场分量，可用于后续验证。HBK测量的布局可参见配套布局图`measurment_layout.png`。
本数据集以HDF5（分层数据格式，Hierarchical Data Formats）格式存储，其数据结构如下：
数据集"HBK data - HDF5 datastructure"
Dataset.attributes
├── disambiguate_measurement_data (1) 'Nsources x Npositions x Nmics x Ntaps'
└── fs (1) 8000
├── measurement_data (17x9x11x2000) float64
├── mic_coords (9x11x2) float64
├── ref_pos (2x1) float64
├── reference_data (17x2000) float64
└── src_pos (2x17) float64

可通过Matlab读取：https://mathworks.com/help/matlab/hdf5-files.html
可通过Python读取：https://docs.h5py.org/en/stable/

本数据集隶属于丹麦声学子集群（Danish Sound Cluster）项目，项目标题为《面向声场重构的物理感知神经网络（Physics-informed Neural Networks for Sound Field Reconstruction）》[url]。更多数据集可访问项目主页（Project Page）。