Results 41 to 50 of about 1,827,815 (335)
Blind estimation of reverberation time in classrooms and hospital wards [PDF]
, 2012 This paper investigates blind Reverberation Time (RT) estimation in occupied classrooms and hospital wards. Measurements are usually made while these spaces are unoccupied for logistical reasons.
Conetta, R +5 more
core +2 more sources
Frontiers in Physics, 2022 We report the numerical and experimental realization of a type of ultrathin planar wall with low-frequency dual-band sound absorption. The proposed planar wall is constructed by a periodic subwavelength unit cell (with a thickness of λ/19) which consists
Yu-wei Xu +10 more
doaj +1 more source
Performance of profiled single noise barriers covered with quadratic residue diffusers [PDF]
, 2005 The paper describes an investigation about the acoustic performance of noise barriers with quadratic residue diffuser (QRD) tops, and with T-, Arrow-, Cylindrical and Y-shape profiles.
Lam, YW, Monazzam, M
core +2 more sources
Bilayer ventilated labyrinthine metasurfaces with high sound absorption and tunable bandwidth
Scientific Reports, 2021 The recent advent of acoustic metamaterials offers unprecedented opportunities for sound controlling in various occasions, whereas it remains a challenge to attain broadband high sound absorption and free air flow simultaneously.
Jiayuan Du +5 more
doaj +1 more source
Seabed Attenuation In Water Saturated Sands On New Jersey Continental Shelf In 50-3000 Hz Band [PDF]
, 2010 The Shallow Water 2006 ocean acoustics experiment on the New Jersey continental shelf was designed in part to determine the frequency dependence of sound speed and attenuation for a sandy sediment in the 50-3000 Hz band.
Knobles, D. P.
core +1 more source
Journal of Engineered Fibers and Fabrics, 2023 This study focuses on the development and characterization of pigeon pea stalk/cotton fibers mixed with a blend ratio of 50/50, 70/30, 30/70, 60/40, 100/0 waste cotton and 0/100 waste pea stalk composites are equipped with a compression molding system ...
V. Jawahar +3 more
semanticscholar +1 more source
Cellulose-based Material for Sound Absorption And Its Application – A Short Review [PDF]
BIO Web of Conferences, 2023 Cellulose is a natural fiber potentially used as a sound absorber material due to its excellent properties, biodegradability, and lower environmental impact than synthetic materials and can be sourced from various plant-based materials, such as wood ...
Muchlisinalahuddin +3 more
doaj +1 more source
SPATIAL ANALYSIS OF THE ACOUSTICS OF ROCK CLUBS AND NIGHTCLUBS
Auditorium Acoustics 2015, 2023 Previously, the acoustics of rock and pop venues has been studied in terms of standard single microphone acoustic parameters1,2,3,4. A study from 20104 finds appropriate reverberation times for rock and pop venues by correlating the musicians’ and sound ...
S. Tervo +4 more
semanticscholar +1 more source
The modeling of diffuse boundaries in the 2-D digital waveguide mesh [PDF]
, 2008 The digital waveguide mesh can be used to simulate the propagation of sound waves in an acoustic system. The accurate simulation of the acoustic characteristics of boundaries within such a system is an important part of the model.
Murphy, Damian T., Shelley, Simon
core +1 more source
Acoustic modeling using the digital waveguide mesh [PDF]
, 2007 The digital waveguide mesh has been an active area of music acoustics research for over ten years. Although founded in 1-D digital waveguide modeling, the principles on which it is based are not new to researchers grounded in numerical simulation, FDTD ...
Kelloniemi, Antti +3 more
core +2 more sources