Abstract
This paper presents a new dataset of measured multichannel room impulse responses (RIRs) named dEchorate. It includes annotations of early echo timings and 3D positions of microphones, real sources, and image sources under different wall configurations in a cuboid room. These data provide a tool for benchmarking recent methods in echo-aware speech enhancement, room geometry estimation, RIR estimation, acoustic echo retrieval, microphone calibration, echo labeling, and reflector position estimation. The dataset is provided with software utilities to easily access, manipulate, and visualize the data as well as baseline methods for echo-related tasks.
Highlights
When sound travels from a source to a microphone in an indoor space, it interacts with the environment by being delayed and attenuated due to the distance, and reflected, absorbed, and diffracted due to walls, ceiling, floor, furniture, and obstacles
5 Conclusions and perspectives This paper introduced a new database of room impulse responses featuring accurate annotation of early echo timings that are consistent with source, microphone, and room facet positions
These data can be used to test the methods in the room geometry estimation pipeline and in echo-aware audio signal processing
Summary
When sound travels from a source to a microphone in an indoor space, it interacts with the environment by being delayed and attenuated due to the distance, and reflected, absorbed, and diffracted due to walls, ceiling, floor, furniture, and obstacles. In order to be versatile and used in both SE and RooGE applications, geometry and timing annotations should be fully consistent Such data are difficult to collect since it involves precise measurements of the positions and orientations of all the acoustic emitters, receivers, and reflective surfaces inside the environment with dedicated planimetric equipment. To fill this gap, we present the dEchorate dataset: a fully calibrated multichannel RIR dataset with accurate annotation of the geometry and echo timings in different configurations of a cuboid room with varying wall acoustic profiles.
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