Application of a parametric array over a mid-frequency band (4–10 kHz)–measurements of bottom backscattering strength

S Yu, B Liu, K Yu, Z Yang, G Kan, L Zong - Ocean Engineering, 2023 - Elsevier
Study on characteristics of bottom backscattering at midfrequency (usually referring to 1–10
kHz) is essential for underwater acoustic communication, subbottom structure detection …

Design of a new acoustic logging while drilling tool

K Zhang, B Tan, W Zhang, Y Sun, J Zheng, Y Su, X Liu… - Sensors, 2021 - mdpi.com
To obtain qualified logging while drilling (LWD) data, a new acoustic LWD tool was
designed. Its overall design is introduced here, including the physical construction …

Directional speakers as a tool for animal vocal communication studies

L Johnson-Ulrich, V Demartsev… - Royal Society …, 2023 - royalsocietypublishing.org
Audio playbacks are a common experimental tool in vocal communication research.
However, low directionality of sound makes it hard to control the audience exposed to the …

Pulse width research on half-sine excitation signal for bending vibrator

K Zhang, F Li, J Wu, B Tan, L Liu - Journal of Geophysics and …, 2022 - academic.oup.com
Acoustic well logging adopts bending vibrators to transform high-voltage electric signals into
acoustic signals. Excited acoustic signals have been proven best when the pulse widths are …

Spatially Variable Parametric Sound Image Presentation with Sparsely Arranged Ultrasonic Sources with Controlled Emission Direction

T Momoki, M Takasaki, K Hasegawa - Available at SSRN 5003792 - papers.ssrn.com
This paper proposes a new method for personalized sound image presentation using
parametric arrays with controllable azimuthal direction. Despite a long research history of …

Directional Speaker

G Tramontina Ceribelli, VT Pierce - 2023 - digitalcommons.calpoly.edu
Abstract/Summary Parametric Acoustic Arrays (PAA) are highly directional soundwaves
whose attenuation and spread are much less affected by distance from the source as …

Multi-physics Analysis of a Loudspeaker for the Elderly

ZC Dai - 2021 International Conference on Computers and …, 2021 - ieeexplore.ieee.org
This article simulates the acoustic phenomenon of a vented loudspeaker dedicated for the
elderly. The goal of the simulation for the vented loudspeaker for the elderly are its sensitivity …