Journal of the Acoustical Society of America最新文献_第6页

A semi-analytical method for two-dimensional sound propagation in subsonic parallel mean flow. 亚音速平行平均流中二维声传播的半解析方法。

IF 2.3 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-09-01 DOI: 10.1121/10.0039244

Jinxiao Li, Haijun Wu, Changjiang Liao, Liang Ji, Weikang Jiang

{"title":"A semi-analytical method for two-dimensional sound propagation in subsonic parallel mean flow.","authors":"Jinxiao Li, Haijun Wu, Changjiang Liao, Liang Ji, Weikang Jiang","doi":"10.1121/10.0039244","DOIUrl":"https://doi.org/10.1121/10.0039244","url":null,"abstract":"This paper presents a semi-analytical method, referred to as the linear-velocity-profile fast field program (LFFP), for predicting two-dimensional sound fields in ambient parallel mean flows. The proposed method incorporates the linear velocity layering method into the fundamental framework of fast field program (FFP) to achieve reduced computational costs and enhanced precision, particularly under high-velocity gradient conditions. The accuracy of LFFP is validated through a two-dimensional jet case by comparison with the linearized Euler equation in frequency-domain. In shear flow cases, results obtained from various combinations of Mach number difference and shear layer thickness suggest that the reason for the higher precision of LFFP, compared to traditional FFP, primarily arises from its consideration of the second velocity gradient term in the Pridmore-Brown operator within each single layer. To systematically and mathematically explain this observation, residual analysis is introduced. Furthermore, based on the residual analysis, the multi-staircase layering model is subsequently developed to improve computational efficiency and adapt to sound field calculations in environments with multiple vertically variable ambient quantities.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 3","pages":"1819-1833"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145000820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-linear coupling in two non-linear delayed acoustic resonatorsa). 两个非线性延迟声谐振器的非线性耦合[j]。

IF 2.3 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-09-01 DOI: 10.1121/10.0038955

Jana Reda, Mathias Fink, Fabrice Lemoult

引用次数: 0

Vocal tract contribution to vocal intensity: Interaction between vocal fold adduction, formant tuning, and fundamental frequency. 声道对声音强度的贡献：声带内收、共振峰调谐和基本频率之间的相互作用。

IF 2.3 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-09-01 DOI: 10.1121/10.0039239

Zhaoyan Zhang

{"title":"Vocal tract contribution to vocal intensity: Interaction between vocal fold adduction, formant tuning, and fundamental frequency.","authors":"Zhaoyan Zhang","doi":"10.1121/10.0039239","DOIUrl":"https://doi.org/10.1121/10.0039239","url":null,"abstract":"The goal of this study was to understand the interaction between the voice source spectral shape, formant tuning, and fundamental frequency in determining the vocal tract contribution to vocal intensity. Computational voice simulations were performed with parametric variations in both vocal fold and vocal tract configurations. The vocal tract contribution to vocal intensity was quantified as the difference in the A-weighted sound pressure level between the radiated sound pressure and the sound pressure at the glottis. The results from the simulations showed that the vocal tract contribution to vocal intensity depends strongly on the amplitude of the first vocal tract resonance. Two strategies to increase vocal tract contribution to vocal intensity were identified. The first strategy was to increase vocal fold adduction, which increases the relative prominence of the harmonics near the first vocal tract resonance. The second strategy was to bring a vocal tract resonance and a nearby harmonic closer in frequency, often known as formant tuning. In this study, increasing vocal fold adduction was the primary strategy at low fundamental frequencies, whereas formant tuning was more effective at high fundamental frequencies, particularly when formant tuning involves the strongest harmonic in the voice source spectrum.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 3","pages":"1904-1913"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145023616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical evaluation of the Kirchhoff-Helmholtz integral outside a sphere. 球外Kirchhoff-Helmholtz积分的数值计算。

IF 2.3 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-09-01 DOI: 10.1121/10.0039386

M J Carley

引用次数: 0

Ultrasonic backscatter anisotropy of sheared blood suspensions. 剪切血悬液的超声后向散射各向异性。

IF 2.3 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-09-01 DOI: 10.1121/10.0039381

Marie Poulain-Zarcos, Julien Rouyer, Laurence Bergougnoux, Emilie Franceschini

{"title":"Ultrasonic backscatter anisotropy of sheared blood suspensions.","authors":"Marie Poulain-Zarcos, Julien Rouyer, Laurence Bergougnoux, Emilie Franceschini","doi":"10.1121/10.0039381","DOIUrl":"https://doi.org/10.1121/10.0039381","url":null,"abstract":"The anisotropy of the ultrasonic backscatter coefficient (BSC) was investigated in sheared suspensions of porcine red blood cells (RBCs). Experiments were conducted in Couette and tubular flow devices using a focused mono-element transducer (15 or 32 MHz) at various insonification angles relative to the flow direction. For suspensions of disaggregated RBCs, the BSC was lowest at 90°, when the ultrasound beam was perpendicular to the flow. This angular dependence is attributed to a shear-induced anisotropic microstructure, particularly a pair-depleted region aligned with the velocity direction. A similar angular trend was observed in suspensions of aggregated RBCs, where the minimum BSC occurred around 90°-95°, likely due to regions depleted in aggregate pairs acting as effective scatterers. Finally, the impact of BSC anisotropy on RBC aggregate size estimation was evaluated using model-based inverse methods. Among tested models, the effective medium theory combined with the polydisperse structure factor model provided the most reliable estimates. These findings highlight the role of shear-induced microstructure in shaping BSC anisotropy and its implications for ultrasound-based quantification of RBC aggregation.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 3","pages":"2631-2641"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145191922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Slowing the speed of sound in a dispersionless environment and consequences regarding source location. 在无频散环境中减慢声速以及声源位置的影响。

IF 2.3 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-09-01 DOI: 10.1121/10.0039367

John L Spiesberger, Ivesavega Djianto, Justin Duong, Jisun Hwang, Maria-Christina Nicolaides, Luke Stoner-Eby, Christian Stuit

{"title":"Slowing the speed of sound in a dispersionless environment and consequences regarding source location.","authors":"John L Spiesberger, Ivesavega Djianto, Justin Duong, Jisun Hwang, Maria-Christina Nicolaides, Luke Stoner-Eby, Christian Stuit","doi":"10.1121/10.0039367","DOIUrl":"https://doi.org/10.1121/10.0039367","url":null,"abstract":"Theoretical considerations and simulations indicate temporal interference between direct and boundary-reflected paths induce large variations in the speed, c3d, of an acoustic pulse between two points. This occurs even in a dispersionless medium, where the phase and group speeds are equal. The effect occurs when the source and receiver approach one another and are within cδt̃/2 of the boundary, where c is the in situ speed of sound and δt̃ is the smallest temporal separation between the paths at which interference initiates. At small separations, the c3d might approach zero. The effect diminishes far from a receiver as the size of the delay shrinks relative to the overall time of propagation. The phenomenon may be of importance for methods designed to locate sounds from whales via time differences of arrival as the c3d may significantly differ from the in situ value, and the c3d between a source and each receiver may differ by large amounts, a phenomenon invalidating the geometrical interpretation of location by hyperboloids and validating isodiachronic geometries instead.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 3","pages":"2551-2560"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145137837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Broadband modal phase speed estimation and geoacoustic inversion with sparse Bayesian learning using multi-range dataa). 基于稀疏贝叶斯学习的宽带模态相位速度估计与地球声反演[j]。

IF 2.3 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-09-01 DOI: 10.1121/10.0039256

Shanru Lin, Haiqiang Niu, Zhenglin Li, Yonggang Guo

{"title":"Broadband modal phase speed estimation and geoacoustic inversion with sparse Bayesian learning using multi-range dataa).","authors":"Shanru Lin, Haiqiang Niu, Zhenglin Li, Yonggang Guo","doi":"10.1121/10.0039256","DOIUrl":"https://doi.org/10.1121/10.0039256","url":null,"abstract":"A broadband modal phase speed estimation method based on sparse Bayesian learning (SBL) using multi-range data (multi-range SBL) is proposed for geoacoustic inversion in shallow water. Multi-range SBL estimates local modal depth functions and horizontal wavenumbers from multi-range signals received by a vertical line array, without a priori knowledge of geoacoustic parameters or sound source locations. It eliminates narrowband limitations caused by the approximate dispersion relation in block SBL, which utilizes multiple frequencies, allowing horizontal wavenumber estimation over a broad bandwidth. This enables geoacoustic inversion by fitting and matching the curves of phase speed changing with frequency across a broad bandwidth. Multi-range SBL decouples seabed attenuation coefficient from other parameters, allowing for their separate estimation and reducing the mutual interference. The proposed method involves local modes, which are only related to local parameters, unaffected by propagation path and bathymetry mismatch during inversion. A Bayesian optimization algorithm is used to improve search efficiency during the estimation of multi-dimensional parameters. The inversion results are used to construct a sound field model for matched-field processing localization. The feasibility and accuracy of the method are validated through simulations and experimental data, showing better results in range and depth estimation compared to conventional matched-field inversion.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 3","pages":"2404-2419"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145137869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical study on the sound absorption of acoustic coatings with pre-deformation induced by the hydrostatic pressure. 静水压力诱导下预变形声膜吸声特性的理论研究。

IF 2.3 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-09-01 DOI: 10.1121/10.0039349

Guanghua Wu, Chunhui Yuan, Xiang Zhu, Tianyun Li, Xinyi Han, Kehui Peng

引用次数: 0

High-frequency dynamic acoustic field manipulation method and its application to flaw evaluation and imaging. 高频动态声场操纵方法及其在缺陷评价与成像中的应用。

IF 2.3 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-09-01 DOI: 10.1121/10.0039388

Kai Wang, Yihua Kang, Kaiqing Wang, Zongbo Zhang, Xiang Li, Yu Hu

{"title":"High-frequency dynamic acoustic field manipulation method and its application to flaw evaluation and imaging.","authors":"Kai Wang, Yihua Kang, Kaiqing Wang, Zongbo Zhang, Xiang Li, Yu Hu","doi":"10.1121/10.0039388","DOIUrl":"https://doi.org/10.1121/10.0039388","url":null,"abstract":"Existing approaches for acoustic field manipulation using acoustic lenses mainly focuses more on low-frequency, particularly audible range, and static fields with limited applicability to ultrasonic regimes. This paper proposes a megahertz-range rotational acoustic field manipulation method based on an acoustic lens and investigates its application in flaw evaluation and imaging. Theoretical analysis of dynamic acoustic field propagation was conducted at frequencies up to the megahertz range, leading to the formulation of a motion-modulated transmission model to describe field regulation. Additionally, a composite flaw evaluation method was introduced based on directional rotation of the dynamic field. Simulation and experimental results demonstrate that this method offers superior performance in directly identifying the orientation and size of flaws with a maximum angle error of only 0.3%. Compared to traditional ultrasonic imaging, this method provides 15% and 18% improvements in accuracy of angle and size, respectively, and presents an efficient guide for dynamic ultrasonic field manipulation and directional field application.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 3","pages":"2269-2277"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145113618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Normal modes in the ocean-sediment acoustic waveguide system at the New England Mud Patch. 新英格兰泥块海洋-沉积物声波导系统的正常模式。

IF 2.3 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-09-01 DOI: 10.1121/10.0039345

Michael J Buckingham

{"title":"Normal modes in the ocean-sediment acoustic waveguide system at the New England Mud Patch.","authors":"Michael J Buckingham","doi":"10.1121/10.0039345","DOIUrl":"https://doi.org/10.1121/10.0039345","url":null,"abstract":"The sediment at the New England Mud Patch (NEMP) consists of a near-homogeneous mud layer overlying a sand-mud basement in which the sound speed follows closely an inverse-square law. In combination, the ocean and sediment form a three-layer acoustic waveguide. With a sound source located in the ocean, an analysis of the acoustic field in each of the layers is presented, based on spatial Fourier transforms taken over depth and horizontal range, taking account of the boundary conditions at the sea surface, the seabed, and the top of the basement. A familiar mapping leads to modal solutions for the field in each of the layers involving MacDonald's function. A component of these solutions is a transcendental characteristic equation, which is solved for the eigenvalues using an iterative procedure, the graphical bisection method. Under the conditions of site SC2 at the NEMP, only eleven eigenvalues exist, each associated with a propagating normal mode. When the density of the basement and the depth of the ocean, respectively, are allowed to go to zero and infinity, the NEMP waveguide takes the form of an inverted Pekeris waveguide and, in this limit, the NEMP characteristic equation reduces identically to that of the Pekeris channel.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 3","pages":"2290-2304"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145124992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0