Learning Magnitude Distribution of Sound Fields via Conditioned Autoencoder

Fuente: arXiv
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Main Authors: Koyama, Shoichi, Ishizuka, Kenji
Format: Preprint
Published: 2025
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author Koyama, Shoichi
Ishizuka, Kenji
author_facet Koyama, Shoichi
Ishizuka, Kenji
contents A learning-based method for estimating the magnitude distribution of sound fields from spatially sparse measurements is proposed. Estimating the magnitude distribution of acoustic transfer function (ATF) is useful when phase measurements are unreliable or inaccessible and has a wide range of applications related to spatial audio. We propose a neural-network-based method for the ATF magnitude estimation. The key feature of our network architecture is the input and output layers conditioned on source and receiver positions and frequency and the aggregation module of latent variables, which can be interpreted as an autoencoder-based extension of the basis expansion of the sound field. Numerical simulation results indicated that the ATF magnitude is accurately estimated with a small number of receivers by our proposed method.
format Preprint
id arxiv_https___arxiv_org_abs_2506_16729
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Learning Magnitude Distribution of Sound Fields via Conditioned Autoencoder
Koyama, Shoichi
Ishizuka, Kenji
Sound
Audio and Speech Processing
A learning-based method for estimating the magnitude distribution of sound fields from spatially sparse measurements is proposed. Estimating the magnitude distribution of acoustic transfer function (ATF) is useful when phase measurements are unreliable or inaccessible and has a wide range of applications related to spatial audio. We propose a neural-network-based method for the ATF magnitude estimation. The key feature of our network architecture is the input and output layers conditioned on source and receiver positions and frequency and the aggregation module of latent variables, which can be interpreted as an autoencoder-based extension of the basis expansion of the sound field. Numerical simulation results indicated that the ATF magnitude is accurately estimated with a small number of receivers by our proposed method.
title Learning Magnitude Distribution of Sound Fields via Conditioned Autoencoder
topic Sound
Audio and Speech Processing
url https://arxiv.org/abs/2506.16729