Dataset of Spatial Room Impulse Responses in a Variable Acoustics Room for Six Degrees-of-Freedom Rendering and Analysis
This dataset addresses a gap for audio researchers working on spatial acoustics, virtual reality, and speech enhancement, though it is incremental as it provides new data rather than novel methods.
The authors tackled the need for standardized spatial room impulse response (SRIR) data by creating a dataset measured in a variable acoustics room using two spherical microphone arrays, resulting in a collection of SRIRs across multiple source-receiver positions and room configurations for applications like 6DoF rendering and analysis.
Room acoustics measurements are used in many areas of audio research, from physical acoustics modelling and speech enhancement to virtual reality applications. This paper documents the technical specifications and choices made in the measurement of a dataset of spatial room impulse responses (SRIRs) in a variable acoustics room. Two spherical microphone arrays are used: the mh Acoustics Eigenmike em32 and the Zylia ZM-1, capable of up to fourth- and third-order Ambisonic capture, respectively. The dataset consists of three source and seven receiver positions, repeated with five configurations of the room's acoustics with varying levels of reverberation. Possible applications of the dataset include six degrees-of-freedom (6DoF) analysis and rendering, SRIR interpolation methods, and spatial dereverberation techniques.