A dataset of measured spatial room impulse responses for the transition between coupled rooms

For a detailed description of the measurement and analysis methods, please see: McKenzie, T., Schlecht, S. J., and Pulkki, V. (2021). Acoustic Analysis and Dataset of Transitions between Coupled Rooms. IEEE International Conference on Acoustics, Speech and Signal Processing. This dataset contains measured spatial room impulse responses for the transition between coupled rooms. Four coupled room pairs are included: Meeting Room to Hallway Office to Anechoic Chamber Office to Kitchen Office to Stairwell All were recorded at the Aalto University campus using a Genelec 8331A coaxial loudspeaker and an mh acoustics Eigenmike (32 capsule spherical microphone array for fourth order spherical harmonic capture). Each transition features 101 measurements in 5cm intervals from 2.5m inside the first room to 2.5m inside the second room. Transitions are repeated four times corresponding to four different source positions: two inside each room, one which has no continuous line-of-sight with the microphone when in the opposing room, and one which retains a direct continuous line-of-sight with the microphone for all measurement positions. The spatial room impulse responses are downloadable in either Spatially Oriented Format for Acoustics (SOFA) and Wav formats. Supplementary data includes amplitude plots, direct-to-reverberant graphs, estimated direction-of-arrival plots and scaled illustrations of room geometries and source positions. Changelog: V 1.0 - Initial version V 1.1 - Added plots only download option V 1.2 - Improved time alignment of impulse responses and changed normalisation to a single value relative to the maximum of the entire dataset V 1.3 - SOFA files updated to latest Matlab API (1.1.3), 'SingleRoomDRIR' convention, with SourcePosition data corrected. The SOFA files for each transition are also now downloadable separately, in case the entire dataset is not required.

如需了解测量与分析方法的详细说明，请参阅：McKenzie, T.、Schlecht, S. J. 与 Pulkki, V.（2021）于IEEE国际声学、语音与信号处理会议发表的论文《Acoustic Analysis and Dataset of Transitions between Coupled Rooms》。本数据集包含耦合房间间过渡场景的实测空间房间冲激响应（spatial room impulse responses）。共包含四组耦合房间对：会议室至走廊、办公室至消声室、办公室至厨房、办公室至楼梯间。所有数据均在阿尔托大学校园内采集，使用的设备为Genelec 8331A同轴扬声器与mh acoustics Eigenmike（32振元球形麦克风阵列，用于采集四阶球谐分量）。每组过渡场景包含101组测量数据，采样间隔为5cm，测量位置覆盖从第一房间内部2.5米处至第二房间内部2.5米处的区间。过渡场景共重复采集四次，对应四种不同的声源布设位置：两个声源分别置于两个房间内，其中一个声源处于对侧房间时与麦克风无连续视距，另一个声源在所有测量位置下均与麦克风保持直接连续视距。空间房间冲激响应可通过声学空间定向格式（Spatially Oriented Format for Acoustics, SOFA）与Wav两种格式下载。补充数据包含幅值图谱、直达声-混响比图表、估计到达方向图谱，以及房间几何结构与声源位置的比例示意图。更新日志：
V 1.0：初始版本
V 1.1：新增仅下载图谱的选项
V 1.2：优化冲激响应的时间对齐方式，并将归一化规则调整为以整个数据集的最大值作为基准的单一归一化值
V 1.3：将SOFA文件更新至最新版Matlab API（1.1.3），采用'SingleRoomDRIR'规范，并修正了声源位置数据；此外，每组过渡场景对应的SOFA文件现已支持单独下载，以供无需完整数据集的用户使用。