发布求助
文献互助 智能选刊 最新文献

JASA express letters最新文献

筛选
英文 中文
Approaches to attributing underwater noise to a wave energy converter. 将水下噪声归因于波能转换器的方法。
IF 1.2
JASA express letters Pub Date : 2025-05-01 DOI: 10.1121/10.0036727
Brian Polagye, Aidan Hunt, Landon Mackey, Christopher Bassett
{"title":"Approaches to attributing underwater noise to a wave energy converter.","authors":"Brian Polagye, Aidan Hunt, Landon Mackey, Christopher Bassett","doi":"10.1121/10.0036727","DOIUrl":"https://doi.org/10.1121/10.0036727","url":null,"abstract":"<p><p>Radiated noise from marine energy harvesting is of environmental and engineering interest. Here, drifting hydrophones measure underwater noise in the vicinity of a relatively small wave energy converter. A statistical approach is demonstrated for attributing range-dependent, commonly occurring sounds in the frequency band from 90 to 600 Hz. Time-delay-of-arrival localization is then demonstrated for attribution of individual acoustic events likely associated with the power takeoff and wave-hull interactions. Because the radiated noise from the wave energy converter falls below ambient levels at a range of approximately 150 m, it is unlikely to substantially affect marine life at greater distance.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144082637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Temporal coherence effects on voice attribution in multi-speaker stream segregation. 时间相干对多说话人流分离语音归因的影响。
IF 1.2
JASA express letters Pub Date : 2025-05-01 DOI: 10.1121/10.0036672
Jaeeun Lee, Andrew J Oxenham
{"title":"Temporal coherence effects on voice attribution in multi-speaker stream segregation.","authors":"Jaeeun Lee, Andrew J Oxenham","doi":"10.1121/10.0036672","DOIUrl":"10.1121/10.0036672","url":null,"abstract":"<p><p>The principle of temporal coherence predicts that two temporally coherent voices should form a unified auditory stream, whereas incoherent voices should form separate streams. This prediction was tested by asking 20 normal-hearing listeners to identify the last word spoken by the higher or lower of two talkers, preceded by temporally coherent or incoherent phrases spoken by the same two talkers, or by silence. In contrast to results from stream-segregation studies using simple repeating stimuli that manipulated temporal coherence, no significant differences in performance were observed between the conditions, raising questions regarding the generalization of temporal-coherence principles to complex speech.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12077373/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144063419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Observation of forward-direct onshore and backscattered waves in water propagating in a wedge-shaped ocean. 楔形海洋中传播的正向陆上波和反向散射波的观测。
IF 1.2
JASA express letters Pub Date : 2025-05-01 DOI: 10.1121/10.0036671
Xiaohan Wang, Yang Dong, Shengchun Piao, Kashif Iqbal
{"title":"Observation of forward-direct onshore and backscattered waves in water propagating in a wedge-shaped ocean.","authors":"Xiaohan Wang, Yang Dong, Shengchun Piao, Kashif Iqbal","doi":"10.1121/10.0036671","DOIUrl":"https://doi.org/10.1121/10.0036671","url":null,"abstract":"<p><p>To investigate low-frequency acoustic propagation in a wedge-shaped ocean, two ocean bottom seismometers (OBSs) were deployed on the seabed and a land-based seismometer (LS) was positioned near the coastline. A broadband acoustic source (airgun) generated signals at a standoff distance. The OBSs captured forward-direct waves and backscattered waves, while the LS detected shore-coupled forward-direct arrivals. Spectral element modeling revealed a frequency-dependent propagation mechanism: High-frequency components (>200 Hz) of the normal modes exhibited strong backscattering from the seabed slope, while low-frequency components (<200 Hz) of the first normal mode coupled into the seabed sediment and propagated onshore as geoacoustic waves.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144048009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aeroacoustic source characterization at fan test facility with spherical harmonics of the half-space. 半空间球面谐波对风机试验台气动声源特性的影响。
IF 1.2
JASA express letters Pub Date : 2025-05-01 DOI: 10.1121/10.0036723
Michail Vourakis, Franz Zotter, Eric Brandão, Elias Zea
{"title":"Aeroacoustic source characterization at fan test facility with spherical harmonics of the half-space.","authors":"Michail Vourakis, Franz Zotter, Eric Brandão, Elias Zea","doi":"10.1121/10.0036723","DOIUrl":"https://doi.org/10.1121/10.0036723","url":null,"abstract":"<p><p>Acoustic measurements of sources in non-ideal acoustic environments, often the case in industrial product development, issue challenges in source characterization. This study investigates the room-acoustical effects of a bespoke fan test facility on aeroacoustic source characterization via a second-order scheme of spherical harmonics of the half-space. An experimental test of a compact monopole-like sound source reveals the influence of the room's transfer function at low frequencies. Applying the scheme to a benchmark case of a low-pressure axial fan at different loading conditions showcases a satisfactory estimation of sound power and directivity.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144082636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Leveraging sound speed dynamics and generative deep learning for ray-based ocean acoustic tomography. 利用声速动力学和生成深度学习进行基于射线的海洋声层析成像。
IF 1.2
JASA express letters Pub Date : 2025-04-01 DOI: 10.1121/10.0036312
Priyabrata Saha, Richard X Touret, Etienne Ollivier, Jihui Jin, Matthew McKinley, Justin Romberg, Karim G Sabra
{"title":"Leveraging sound speed dynamics and generative deep learning for ray-based ocean acoustic tomography.","authors":"Priyabrata Saha, Richard X Touret, Etienne Ollivier, Jihui Jin, Matthew McKinley, Justin Romberg, Karim G Sabra","doi":"10.1121/10.0036312","DOIUrl":"https://doi.org/10.1121/10.0036312","url":null,"abstract":"<p><p>A generative deep learning framework is introduced for ray-based ocean acoustic tomography (OAT), an inverse problem for estimating sound speed profiles (SSP) based on arrival-times measurements between multiple acoustic transducers, which is typically ill-posed. This framework relies on a robust low-dimensional parametrization of the expected SSP variations using a variational autoencoder and a linear dynamical model as further regularization. This framework was tested using SSP variations simulated by a regional ocean model with submesoscale permitting horizontal resolution and various transducer configurations spanning the upper ocean over short propagation ranges and was found to outperform conventional linear least squares formulations of OAT.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143756277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimating sound pressure levels from distributed acoustic sensing data using 20 Hz fin whale calls. 利用20赫兹长须鲸叫声从分布式声学传感数据估计声压级。
IF 1.2
JASA express letters Pub Date : 2025-04-01 DOI: 10.1121/10.0036351
Léa Bouffaut, Quentin Goestchel, Robin André Rørstadbotnen, Anthony Sladen, Arthur Hartog, Holger Klinck
{"title":"Estimating sound pressure levels from distributed acoustic sensing data using 20 Hz fin whale calls.","authors":"Léa Bouffaut, Quentin Goestchel, Robin André Rørstadbotnen, Anthony Sladen, Arthur Hartog, Holger Klinck","doi":"10.1121/10.0036351","DOIUrl":"https://doi.org/10.1121/10.0036351","url":null,"abstract":"<p><p>Distributed acoustic sensing (DAS) is a promising technology for underwater acoustics, but its instrumental response is still being investigated to enable quantitative measurements. We use fin whale 20 Hz calls to estimate the conversion between DAS-recorded strain and acoustic pressure. Our method is tested across three deployments on varied seafloor telecommunication cables and ocean basins. Results show that after accounting for well-established DAS response factors, a unique value for water compressibility provides a good estimate for the conversion. This work represents a significant step forward in characterizing DAS for marine monitoring and highlights potential limitations related to instrument noise floor.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143813070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sound power level spectra of an installed General Electric F404 engine. 已安装的通用电气F404发动机的声功率级谱。
IF 1.2
JASA express letters Pub Date : 2025-04-01 DOI: 10.1121/10.0036464
Hunter J Pratt, Logan T Mathews, Tyce W Olaveson, Kent L Gee
{"title":"Sound power level spectra of an installed General Electric F404 engine.","authors":"Hunter J Pratt, Logan T Mathews, Tyce W Olaveson, Kent L Gee","doi":"10.1121/10.0036464","DOIUrl":"https://doi.org/10.1121/10.0036464","url":null,"abstract":"<p><p>A sound power spectrum analysis has been conducted on a T-7A-installed F404 engine, for operating conditions spanning intermediate thrust to afterburner. From free-field pressure spectra at microphone arc arrays with radii of 38 and 76 m, sound power level spectra are calculated from surface integrals and assumed axisymmetric radiation. The spectral peak-frequency region, from ∼100-500 Hz, broadens with increasing engine conditions. When the power level spectra are plotted with Strouhal number, the spectral peak decreases with engine condition. Comparing this decrease with rocket data suggests that military jet noise radiation is becoming more rocket-like, especially at afterburner conditions.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144044819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatial observations of low-frequency acoustic propagation near isolated seamounts using an autonomous surface vehicle. 利用自主水面航行器对孤立海山附近低频声波传播的空间观测。
IF 1.2
JASA express letters Pub Date : 2025-04-01 DOI: 10.1121/10.0036447
Matthew McKinley, Davis Rider, Laurent Grare, Ganesh Gopalakrishnan, Luc Lenain, Karim G Sabra
{"title":"Spatial observations of low-frequency acoustic propagation near isolated seamounts using an autonomous surface vehicle.","authors":"Matthew McKinley, Davis Rider, Laurent Grare, Ganesh Gopalakrishnan, Luc Lenain, Karim G Sabra","doi":"10.1121/10.0036447","DOIUrl":"https://doi.org/10.1121/10.0036447","url":null,"abstract":"<p><p>This work demonstrates the feasibility of using autonomous surface vehicles equipped with a shallow towed acoustic module (TAM) to survey the spatial variability of low-frequency acoustic propagation across complex bathymetry, such as the Atlantis II seamounts in the Northwest Atlantic. The abrupt seamount topography is found to significantly influence the TAM's recordings of chirp transmissions (500-600 Hz band) from a bottom-moored source ∼30 km from the seamounts by notably causing blockage of in-plane propagation paths and complex reverberation arrivals displaying three-dimensional effects, as confirmed by synthetic aperture beamforming. Ray tracing simulations are compared to these observations based on a data-assimilated ocean model.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143999917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Towards more accurate sound field verification using directional acoustic filtering. 朝着更准确的声场验证使用定向声滤波。
IF 1.2
JASA express letters Pub Date : 2025-04-01 DOI: 10.1121/10.0036394
Emily Barosin, Kaustubha Raghukumar
{"title":"Towards more accurate sound field verification using directional acoustic filtering.","authors":"Emily Barosin, Kaustubha Raghukumar","doi":"10.1121/10.0036394","DOIUrl":"https://doi.org/10.1121/10.0036394","url":null,"abstract":"<p><p>Attributing omnidirectional sound levels to a specific source in the ocean can be challenging when there are multiple competing sources of sound such as boats, or biological activity. Here, we present a method to directionally filter acoustic measurements based on vector measurements of acoustic pressure and particle velocity. The directional discrimination is applied to estimate sound energy from two marine energy sources: sound generated during the decommissioning of an oil platform and those from an operating tidal energy converter. The application of a directional mask leads to distinctly different spectra and some differences in energy, relative to the unmasked scenarios.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bayesian matched-field inversion for shear and compressional geoacoustic profiles at the New England Mud Patcha). 新英格兰泥区剪切和压缩地球声剖面的贝叶斯匹配场反演
IF 1.2
JASA express letters Pub Date : 2025-04-01 DOI: 10.1121/10.0036374
Stan E Dosso, Preston S Wilson, David P Knobles, Julien Bonnel
{"title":"Bayesian matched-field inversion for shear and compressional geoacoustic profiles at the New England Mud Patcha).","authors":"Stan E Dosso, Preston S Wilson, David P Knobles, Julien Bonnel","doi":"10.1121/10.0036374","DOIUrl":"https://doi.org/10.1121/10.0036374","url":null,"abstract":"<p><p>This Letter estimates shear and compressional seabed geoacoustic profiles at the New England Mud Patch through trans-dimensional Bayesian inversion of matched-field acoustic data over a 20-2000 Hz bandwidth. Results indicate low shear-wave speeds (∼35 m/s) with relatively small uncertainties over most of the upper mud layer, increasing in underlying transition and sand layers. Compressional parameters, including attenuation, are also well estimated, but shear-wave attenuation is poorly determined. Comparison of inversions with/without shear parameters and consideration of inter-parameter correlations indicate that estimates of compressional parameters are not substantially influenced by shear effects, with the possible exception of compressional-wave attenuation in the sand layer.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 4","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信