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Acoustics, Volume 8, Issue 2

2026 June - 22 articles

Cover Story: An approximate analytical model for the variation in A-weighted broadband sound levels with distance over flat acoustically soft ground from a source of known sound power depends on the reduction in low-frequency content in noise spectra due to A-weighting, assumes a weak linear sound speed gradient, a frequency-independent attenuation coefficient for air absorption, and introduces adjustable frequency-independent parameters for ground effect, turbulence, and atmospheric refraction. Its predictions of A-weighted sound levels from onshore wind turbines compare better with data and numerical simulations than the simplified and octave-band methods in the international and Swedish standards. View this paper
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Articles (22)

  • Article
  • Open Access
285 Views
17 Pages

Underwater communication is essential for marine research, yet saline environments pose significant challenges as electromagnetic waves suffer from severe attenuation and optical systems face scattering. Consequently, acoustic transmission remains th...

  • Article
  • Open Access
392 Views
23 Pages

Human Detection of Voice-Cloned Speech Under GSM, VoLTE and VoIP Conditions

  • Jakub Warzych,
  • Michał Łuczyński and
  • Janusz Klink

The rapid progress of generative speech synthesis and voice-cloning technologies has enabled the creation of highly natural synthetic voices that pose a serious threat to telecommunication security. While most prior studies evaluate human ability to...

  • Article
  • Open Access
272 Views
15 Pages

Reflection silencers are installed in the exhaust system of stationary combustion engines to attenuate low-frequency noise by means of destructive interference. The acoustic properties of mufflers are experimentally determined by the standard two-loa...

  • Systematic Review
  • Open Access
395 Views
28 Pages

This systematic review summarizes experimental studies in atmospheric acoustics that quantify environmental influences on long-range sound propagation. A keyword-based search was conducted in Scopus and Google Scholar to identify relevant records. St...

  • Article
  • Open Access
376 Views
18 Pages

Ceramic Matrix Composite (CMC) are widely used in aerospace due to the advantages such as high-temperature resistance and lightweight properties. Detecting defects within these materials is crucial for ensuring the safety of corresponding structures....

  • Article
  • Open Access
349 Views
20 Pages

Prestressed steel strands transfer structural loads through complex anchorage systems. During through-anchorage ultrasonic guided-wave inspection, strong reflections generated in the anchorage segment may obscure defect-related echoes and create blin...

  • Article
  • Open Access
339 Views
14 Pages

Active noise control (ANC) in real-world acoustic environments frequently faces impulsive and heavy-tailed noise disturbances, which degrade the performance significantly and lead to slow convergence. This work proposes a dynamically adaptive distrib...

  • Review
  • Open Access
1 Citations
719 Views
20 Pages

The use of sound absorption materials has traditionally been restricted to medium-to-high frequencies due to their limitations at low frequencies, where the large wavelength of sound waves imposes rather bulky solutions. However, recent materials and...

  • Review
  • Open Access
750 Views
34 Pages

Percussion instruments exhibit complex vibrational behavior characterized by transient excitation, high modal density, and strong structural–acoustic coupling. Numerical modeling—especially the finite element method (FEM)—has become...

  • Article
  • Open Access
519 Views
18 Pages

Dust accumulation on photovoltaic (PV) modules reduces power generation efficiency, and traditional water-based cleaning is impractical in arid regions. Inspired by the classical acoustic phenomenon of Chladni figures—specifically the mechanism...

  • Article
  • Open Access
468 Views
17 Pages

The study of bubble pulsation from underwater explosions is critical for applications in marine resource exploration, underwater demolition, and offshore engineering. However, the existing research methods have significant limitations: Laboratory exp...

  • Article
  • Open Access
538 Views
14 Pages

Surrogate-Based Uncertainty Quantification for Coupled Structural–Acoustic Problems

  • Younes Koulou,
  • Hakima Reddad,
  • Norelislam El Hami,
  • Nabil Hmina and
  • Abdelkhalak El Hami

This paper presents a surrogate-based uncertainty quantification (UQ) framework for coupled structural–acoustic systems subject to material and geometric variability. The proposed methodology integrates the Finite Element Method (FEM) with two...

  • Article
  • Open Access
465 Views
17 Pages

An approximate analytical model for the variation of A-weighted broadband sound levels with distance over flat acoustically soft ground from a source of known sound power depends on the reduction in low frequency content in noise spectra due to A-wei...

  • Article
  • Open Access
760 Views
13 Pages

Class II biological safety cabinets (BSCs) are designed to protect the user, the product, and the laboratory environment by maintaining HEPA-filtered airflow; however, their fans, alarms, and structural resonances introduce acoustic and vibrational s...

  • Article
  • Open Access
732 Views
19 Pages

High-frequency transformer (HFT) noise is a pivotal indicator of equipment performance. To conduct a comprehensive evaluation, this study systematically performed testing and evaluation on the noise generated by a 70 kW HFT under no-load conditions....

  • Article
  • Open Access
552 Views
21 Pages

Application and Development of Aircraft Flyover Measurements in China

  • Haoyuan Dong,
  • Cheng Wei Lee,
  • Yuqi Zhou and
  • Wei Ma

Aircraft flyover measurements are used to record the acoustic pressure signals generated by large civil aircraft as they fly over a large-scale microphone array deployed on the ground, thereby obtaining the spatial distribution of aircraft airframe n...

  • Article
  • Open Access
776 Views
36 Pages

Diocletian’s palace with its cellars represents one of the most important cultural heritage sites of the ancient Roman civilisation on the present-day Croatian territory. The cellar complex has been rediscovered only recently and has been prese...

  • Article
  • Open Access
577 Views
22 Pages

This study focuses on how mesoscale eddies at the Kuroshio boundary in the East China Sea modulate underwater acoustic propagation. Using high-resolution reanalysis data from the Hybrid Coordinate Ocean Model (HYCOM) and validated acoustic ray-tracin...

  • Article
  • Open Access
780 Views
11 Pages

Enhancing the vibroacoustic performance of underwater vehicles remains a critical challenge in marine engineering. Increasing geometric stiffness is a conventional strategy to suppress vibration, yet its effectiveness in reducing underwater sound rad...

  • Article
  • Open Access
720 Views
20 Pages

Modelling of Shell Trumpet Overtones and Acoustics of Helicoidal Geometries

  • Marcel-André Ramírez-Trocherie,
  • Pablo Padilla,
  • Francisca Zalaquett and
  • Martín Salinas-Vázquez

In this work, the propagation of acoustic waves in shell trumpets is explored, and the overtones generated by them are studied. We consider different shell geometries, for which their particular morphology is taken into account. This impacts the fund...

  • Article
  • Open Access
1,050 Views
25 Pages

Underwater Target Recognition with Fusion of Multi-Domain Temporal Features

  • Xiaochun Liu,
  • Chenyu Wang,
  • Yunchuan Yang,
  • Xiangfeng Yang,
  • Youfeng Hu and
  • Jianguo Liu

The dynamic nature of acoustic environments—particularly the fluctuation of underwater channels and time-varying target observation angles—poses significant challenges for active sonar target recognition, a problem further aggravated by t...

  • Article
  • Open Access
768 Views
18 Pages

The accurate classification of infrasound events is significant in natural disaster warning, verification of nuclear test bans and geophysical research. Current deep learning-based classification methods mostly focus on denoised and filtered signals....

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Acoustics - ISSN 2624-599X