A midfringe locked interferometer with differential detection is proposed for non-contact
optical sound measurement, and the equivalent noise level of approximately 0 dB SPL/Hz is …

High-speed train noise remains a wayside environmental issue. For accurate noise
prediction, the characteristics of a moving sound source must be revealed. In this work, the …

Acousto-optic measurement of sound (AOMoS) has been widely utilized in various acoustic
studies owing to its noninvasive nature. However, the presence of significant measurement …

Underwater radiated noise is part of the anthropogenic emissions into the environment and
as such a pressing problem for the preservation of the marine ecosystem. In order to direct …

This paper proposes a deep sound-field denoiser, a deep neural network (DNN) based
denoising of optically measured sound-field images. Sound-field imaging using optical …

A multistep time domain plane wave superposition method (M-TPWM) is expanded into a
new environment that the medium is fluid, and an M-TPWM with flow medium (FM-TPWM) is …

This paper proposes a diffusion-model-based method for addressing inverse problems in
optical sound-field imaging. Optical sound-field imaging, known for its high spatial …

In this study, we present initial efforts for a new speech recognition approach aimed at
producing different input images for convolutional neural network (CNN)-based speech …

In this Letter, we propose to use Fresnel lenses for holographic sound-field imaging.
Although a Fresnel lens has never been used for sound-field imaging mainly due to its low …

In this paper, we propose applying a high-speed polarization interferometer to underwater
sound fields for their non-invasive visualization and temperature measurement. Underwater …