A high spatial resolution dataset of spatial room impulse responses for different acoustic room configurations

Short description
All measurements were done with an open microphone array on a robotic platform (see figure Robot_with_array.jpg ) in an ITU-R BS.1116 conform listening room.

With consecutively adding walls (2.5m high, 1.6cm thick, painted pressboard), we intended to change the reflection patterns. All room configurations are shown in figure Roomconfigurations.jpg and Floor_plan.jpg

The robot measured the rooms according to an uniform grid (25cm spacing), always facing the same direction (north, x-direction, see figure Floor_plan.jpg). However, the real position and orientation sometimes deviate from the intended values. The real position is saved in the sofa files. The intended XY position is included in the file name.

We cannot guarantee, that all measurements are error-free. Feel free to give us feedback about problems you encounter.

The robot recorded 3 sine-sweeps for each position from each speaking (15 overall). In this dataset only one preselected SRIR per speaker and measuring position is included. If you would like to use all impulse response measurements or pure recordings, please contact us.

File format:
The data is sorted according to the room configurations. Each zip file contains the data for one room configuration.

The actual data is provided in SOFA file format. The name of the sofa files consists of the room identifier and the x and y coordinates of the measured position (intended value). Each SOFA file contains the SRIRs for all five loudspeakers including metadata.

The "SOFA Toolbox v2.1" was used to generate the sofa files. The data is available in the SOFAConvention “SingleRoomSRIR” in Version 1.0

See: https://www.sofaconventions.org/