Results 41 to 50 of about 9,073,273 (199)

Quantitative imaging of acoustic reflection and interference [PDF]

, 2015
This paper presents a method for time resolved quantitative imaging of acoustic waves. We present the theoretical background, the experimental method and the comparison between experimental and numerical reconstructions of acoustic reflection and ...
Malkin, Rob, Robert, Daniel, Todd, Thomas   +2 more
core   +1 more source

A deep learning-based reconstruction model for 3D sound speed field combining underwater vertical information

Frontiers in Marine Science
IntroductionThe sound speed in the ocean significantly influences the propagation characteristics of underwater acoustic signals. Rapid acquisition of underwater three-dimensional (3D) sound speed fields is essential for target detection, acoustic ...
Hongchen Li, Yuhang Liu, Ming Li, Penghao Wang, Yuhang Zhu, Kefeng Mao, Xi Chen   +6 more
doaj   +1 more source

Internal sound field reconstruction method based on optimal arrangement of sound monitoring points near the cabin inner surface

AIP Advances
Aiming at the problem of sound field online monitoring and reconstruction inside the cabin, an inner acoustic field reconstruction method based on the optimal arrangement of sound monitoring points near the surface in the cabin is proposed.
Shengguo Shi, Qiang Guo, Huihui He, Xinyu Wang   +3 more
doaj   +1 more source

Limitations and Performance Analysis of Spherical Sector Harmonics for Sound Field Processing

Applied Sciences
Developing spherical sector harmonics (SSHs) benefits sound field decomposition and analysis over spherical sector regions. Although SSHs demonstrate potential in the field of spatial audio, a comprehensive investigation into their properties and ...
Hanwen Bi, Shaoheng Xu, Fei Ma, Thushara D. Abhayapala, Prasanga N. Samarasinghe   +4 more
doaj   +1 more source

The features of cinema hall acoustics upon installation of the dolby sound recording system/Kino teatro akustikos ypatumai, įrengus “dolby” įgarsinimo sistemą

Journal of Civil Engineering and Management, 1999
Investigations conducted in a cinema hall have shown that the character of the sound field decay in all rows of the main floor is uniform. The character of the sound field decay in the balcony is similar to that on the main floor.
Vytautas Stauskis
doaj   +1 more source

Scan-based sound visualisation methods using sound pressure and particle velocity

, 2014
Sound visualisation techniques have played a key role in the development of acoustics throughout history. Progress in measurement apparatus and the techniques used to display sound and vibration phenomena has provided excellent tools for understanding ...
Fernandez Comesana, Daniel
core   +1 more source

A parameterized model for the real-time reconstruction of underwater sound speed fields in oceanic eddy environment

Frontiers in Marine Science
Predicting underwater acoustic propagation is essential in marine acoustic operations, could be significantly affected by oceanic physical phenomena. In this paper, we focus on modeling the impact of oceanic eddies on underwater sound speed fields.
Luochuan Xu, Anmin Zhang, Xuehai Sun, Xuehai Sun, Jian Xu, Yi Liu, Dan Chen, Linglong Chen   +7 more
doaj   +1 more source

Influence of the flow field structure formed downstream of the human vocal cord model on the sound generated

Nihon Kikai Gakkai ronbunshu, 2020
Loss of oral communication after total laryngectomy reduces the quality of life of the patient. Understanding the basic sound generation mechanisms in the larynx is necessary for the development of voice reconstruction.
Seiya KOSAKO, Tatsuya TSUNEYOSHI, Yoshiyuki TSUJI   +2 more
doaj   +1 more source

Optimization of secondary source configuration in enclosure using plane wave decomposition

Xibei Gongye Daxue Xuebao, 2021
The optimization of secondary source configuration for an active noise control (ANC) system in its enclosed space generally focuses on noise reduction requirements at discrete points only.

doaj   +1 more source

Underwater 3D sound speed field reconstruction based on block term tensor decomposition

Frontiers in Physics
The three-dimensional sound speed field (SSF) is of great significance in underwater acoustic research; however, the high cost of maritime observation often leads to sparse and limited measurement data, making accurate SSF reconstruction a challenging ...
Hao Wu, Maofa Wang, Jiabao Zhao
doaj   +1 more source