Plenacoustic Imaging in the Ray Space

Abstract:
In this work we present a novel approach to acoustic scene analysis with microphone arrays. Acoustic measurements are here represented in the ray space, which is defined as the space of parameters that describe acoustic rays. The ray space can be thought of as the domain of the plenacoustic function, which defines the sound pressure field in all positions in space. We discuss sampling and distortion with respect to the ideal plenacoustic function introduced using a microphone array. Plenacoustic images can potentially be used for environment inference, source characterization and wavefield extrapolation. Index Terms — Plenacoustic function, acoustic images.