Deep Sound Field Reconstruction in Real Rooms: Introducing the ISOBEL Sound Field Dataset

• URL: http://arxiv.org/abs/2102.06455v1
• Date: Fri, 12 Feb 2021 11:34:18 GMT
• Title: Deep Sound Field Reconstruction in Real Rooms: Introducing the ISOBEL Sound Field Dataset
• Authors: Miklas Str{\o}m Kristoffersen, Martin Bo M{\o}ller, Pablo Mart\'inez-Nuevo, Jan {\O}stergaard
• Abstract summary: This paper extends evaluations of sound field reconstruction at low frequencies by introducing a dataset with measurements from four real rooms. The paper advances on a recent deep learning-based method for sound field reconstruction using a very low number of microphones.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Knowledge of loudspeaker responses are useful in a number of applications, where a sound system is located inside a room that alters the listening experience depending on position within the room. Acquisition of sound fields for sound sources located in reverberant rooms can be achieved through labor intensive measurements of impulse response functions covering the room, or alternatively by means of reconstruction methods which can potentially require significantly fewer measurements. This paper extends evaluations of sound field reconstruction at low frequencies by introducing a dataset with measurements from four real rooms. The ISOBEL Sound Field dataset is publicly available, and aims to bridge the gap between synthetic and real-world sound fields in rectangular rooms. Moreover, the paper advances on a recent deep learning-based method for sound field reconstruction using a very low number of microphones, and proposes an approach for modeling both magnitude and phase response in a U-Net-like neural network architecture. The complex-valued sound field reconstruction demonstrates that the estimated room transfer functions are of high enough accuracy to allow for personalized sound zones with contrast ratios comparable to ideal room transfer functions using 15 microphones below 150 Hz.

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