Journal of the Acoustical Society of America最新文献

Movement trajectories reflect active information acquisition by an echolocating porpoise in a target discrimination task. 运动轨迹反映了回声定位鼠海豚在目标识别任务中的主动信息获取。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037038

Wu-Jung Lee, Michael Ladegaard, Matt D Schalles, John R Buck, Kristian Beedholm, Peter T Madsen, Peter L Tyack

{"title":"Movement trajectories reflect active information acquisition by an echolocating porpoise in a target discrimination task.","authors":"Wu-Jung Lee, Michael Ladegaard, Matt D Schalles, John R Buck, Kristian Beedholm, Peter T Madsen, Peter L Tyack","doi":"10.1121/10.0037038","DOIUrl":"https://doi.org/10.1121/10.0037038","url":null,"abstract":"Voluntary movements of echolocating animals with respect to targets in natural foraging or laboratory target discrimination tasks have long been interpreted as a closed-loop sensorimotor feedback driven by information in previously received echoes. However, what can we infer about sensorimotor integration and auditory information-gathering from animal movement trajectories? In this work, we use unsupervised clustering to analyze the movement trajectories of a free-swimming, echolocating harbor porpoise trained to select a sphere against prolate spheroids of varying aspect ratios presented at different angles, and show that the animal's discrimination performance and overall trajectory can be explained by task difficulty based on the similarity of target echo spectra received during its initial approach. The porpoise continued to evaluate its target selection via incoming echoes throughout the trials, and reversed its decision at very close ranges in a subset of trials. In more challenging scenarios, the animal engaged in prolonged, focused ensonification of a single target, sometimes via buzzes, which we interpret as an evidence accumulation process toward decision making. Our findings highlight movement, in addition to acoustic emissions, as a key behavioral readout in the active information acquisition process embodied in echolocation.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"173-185"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575748","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

Context effects for degraded speech: Effects of age, preceding or subsequent contextual cues, and signal-to-noise ratio. 语言退化的语境效应：年龄、前后语境线索和信噪比的影响。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037182

Anna R Tinnemore, Sandra Gordon-Salant, Matthew J Goupell

{"title":"Context effects for degraded speech: Effects of age, preceding or subsequent contextual cues, and signal-to-noise ratio.","authors":"Anna R Tinnemore, Sandra Gordon-Salant, Matthew J Goupell","doi":"10.1121/10.0037182","DOIUrl":"https://doi.org/10.1121/10.0037182","url":null,"abstract":"Predictive sentence contexts can be used to support speech understanding when words are degraded or unclear. Older adults are thought to maintain the ability to benefit from context. Because context effects are usually measured on words at the end of a sentence, it is unknown if a word's location in a sentence interacts with a listener's age and the word's degradation level to influence the context effect. In this study, listeners (20-76 years) with normal hearing were presented spectrally degraded (8-channel vocoded) speech and performed a phoneme categorization task for words embedded in various levels of speech-shaped noise at the beginning or end of sentences with congruent, incongruent, or neutral contexts. Phoneme categorization accuracy and response times were measured. Results showed effects of target word location within the sentence, especially at more difficult signal-to-noise ratios (-5 and -10 dB). Although there was no significant effect of age on the magnitude of the context effect, there were significant interactions between age, signal-to-noise ratio, and sentence position on response times. These findings suggest that listeners' context benefit depends on a degraded word's position within the sentence and support the theory that all listeners, including older adults, can benefit from context cues.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"447-460"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144642806","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

Modeling of reverberation from the seabed for Doppler sonar. 多普勒声纳海底混响模拟。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037070

Hui Li, Dajun Sun, Zhongyi Cao

{"title":"Modeling of reverberation from the seabed for Doppler sonar.","authors":"Hui Li, Dajun Sun, Zhongyi Cao","doi":"10.1121/10.0037070","DOIUrl":"https://doi.org/10.1121/10.0037070","url":null,"abstract":"In the last 30 years, low-deviation Doppler sonar became a critical tool for autonomous high-precision underwater navigation. This technology estimates the velocity of a platform by extracting Doppler information from reverberation. This study proposes a method for modeling reverberation by constructing a seabed with random undulations to investigate the formation mechanism of measurement errors, optimize sonar design, enhance accuracy, and quantify estimation quality. Initially, the statistical characteristics of measured reverberation and velocity are analyzed to establish a more realistic scattering process and comprehensively simulate the velocity uncertainty in a random channel. Then, a reverberation model is developed based on the K-distribution exhibited by the measured reverberation, simulating the spatial pattern of Gaussian speckle with specified density and scale. Finally, the effectiveness of the model is verified through theoretical and experimental means. The simulated velocity exhibits significant channel dependence and aligns with the uncertainty observed in the measured velocity, which goes below the Cramer-Rao lower bound. The model effectively simulates the reverberation and the measured velocity distribution.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"1-15"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144540625","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

Direct generation of helical Mathieu-Gauss beams using phase-only profile. 使用纯相位剖面直接产生螺旋马修高斯光束。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037091

Zheng Xu, Yubo Shi, Xuemei Ren, Jianrong Shi, Boyuan Tang, Xiaojun Liu

引用次数: 0

Observations of acoustic propagation in the Canada Basin double-duct system from 2016 to 2017 using a 150-km radius tomographic array. 2016 - 2017年加拿大盆地双管道系统声波传播的150 km半径层析成像阵列观测

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037078

John A Colosi, Peter F Worcester, Matthew A Dzieciuch, Bruce D Cornuelle, Heriberto J Vazquez, Christopher W Miller

{"title":"Observations of acoustic propagation in the Canada Basin double-duct system from 2016 to 2017 using a 150-km radius tomographic array.","authors":"John A Colosi, Peter F Worcester, Matthew A Dzieciuch, Bruce D Cornuelle, Heriberto J Vazquez, Christopher W Miller","doi":"10.1121/10.0037078","DOIUrl":"https://doi.org/10.1121/10.0037078","url":null,"abstract":"The Arctic Beaufort Sea has a unique double-duct sound-channel capped by seasonal ice cover. A roughly 90-m surface duct (SD) is formed by a river-driven halocline. Below the SD is the approximately 90-m to 250-m depth Beaufort Duct (BD) created by cold Pacific Winter Water sandwiched between warmer Pacific Summer Water and Atlantic Water. A yearlong record (2016-2017) of acoustic propagation measurements in this double-duct system was carried out using a 150-km radius, acoustic tomography array with broadband, 4-hourly transmissions at 175-m depth centered at 250 Hz. Double-duct signal analysis was carried out using a dense-vertical-receiving array spanning the BD. Observations reveal (1) consistent reverse geometric dispersion in the double-duct system with low modes faster than higher modes, (2) distinct first arrival and final cutoff times, and (3) normal dispersion for non-BD/SD modes causing the front to fold back upon itself after the final cutoff. A vertical-wave number spectrogram technique is used to decompose the pulses into an arrival time series for each wave number. Key observables are the first and final arrival travel times, dominant-vertical wave numbers, and signal intensities. Fluctuations are interpreted in terms of the varying stratification, ice cover, and implications for surface heat flux estimation.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"38-50"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144540626","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

A Fourier transform-based semi-analytical study of photoacoustic ultrasound in multilayered thermal and acoustic structures. 基于傅立叶变换的多层热声结构光声超声半解析研究。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037079

Sangmo Kang

{"title":"A Fourier transform-based semi-analytical study of photoacoustic ultrasound in multilayered thermal and acoustic structures.","authors":"Sangmo Kang","doi":"10.1121/10.0037079","DOIUrl":"https://doi.org/10.1121/10.0037079","url":null,"abstract":"This study presents a Fourier transform-based semi-analytical approach for analyzing the generation and propagation of photoacoustic ultrasound in multilayered thermal-acoustic structures. Laser-induced heat generation, described by the Beer-Lambert law, is incorporated into the heat conduction and acoustic wave equations, which are solved semi-analytically in the frequency domain. The general solutions are obtained analytically, while the arbitrary constants are determined numerically using interface and boundary conditions. Inverse Fourier transforms are then applied to reconstruct the time-domain responses. The approach is validated through comparisons with finite-difference time-domain simulations and experimental data. To demonstrate its applicability, it is applied to a water-substrate-polymer-water structural configuration, where the polymer layer serves as the light-absorbing medium, enabling detailed investigation of photoacoustic phenomena in both the time and frequency domains. The results show that laser heating raises the polymer temperature, generating bi-directional pressure waves and inducing acoustic resonances in both the polymer and the substrate. The proposed method accurately captures these coupled thermal and acoustic dynamics, providing new insights into ultrasound propagation in multilayered structures.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"108-122"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575745","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

Dynamic neural network switching for active control of nonlinear systems. 非线性系统主动控制的动态神经网络切换。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037087

Xander Pike, Jordan Cheer

{"title":"Dynamic neural network switching for active control of nonlinear systems.","authors":"Xander Pike, Jordan Cheer","doi":"10.1121/10.0037087","DOIUrl":"https://doi.org/10.1121/10.0037087","url":null,"abstract":"Feedforward active noise and vibration control systems have been developed for many applications, but are generally designed using linear digital filters, most typically implementing the filtered reference least mean squares algorithm. When the system under control exhibits nonlinearities, linear controllers cannot fully capture the system dynamics to maximize performance. Previous work has shown that neural network (NN) based controllers can improve control performance in the presence of nonlinearities. However, inferring the outputs of NN controllers can be computationally expensive, limiting their practicality, particularly when control is required across a range of nonlinear behaviors. In this paper, a control strategy is proposed where performance is maintained across a nonlinear range of operation by dynamically switching between a set of smaller, and therefore more efficient, NNs that are individually trained over specific ranges of the nonlinear system behavior. It is demonstrated via both simulations of a system with a simple nonlinear stiffness in the primary path and offline simulations using a physical nonlinear dynamical system in the primary path, that the performance of the proposed switching approach offers a control performance advantage compared to both a larger generalized individual NN controller and a functional link artificial neural network based controller.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"154-163"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575747","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 study of sound of underwater explosions in deep water and shallow water. 深水和浅水水下爆炸声的数值研究。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037084

E M Salomons, J T Tuitman, A M von Benda-Beckmann, G N Peixoto Dourado

{"title":"Numerical study of sound of underwater explosions in deep water and shallow water.","authors":"E M Salomons, J T Tuitman, A M von Benda-Beckmann, G N Peixoto Dourado","doi":"10.1121/10.0037084","DOIUrl":"https://doi.org/10.1121/10.0037084","url":null,"abstract":"A numerical model has been developed for sound generated by underwater explosions. For propagation up to a distance of typically 300 m, a finite-element method (FEM) model is used. For propagation to larger ranges, up to typically 10 km, a parabolic equation (PE) model is used. The FEM model takes into account the explosive material in the water layer. The calculated waveform contains the direct shock wave and surface and sediment reflections. Nonlinear-acoustics effects are taken into account by FEM, but are neglected by PE. FEM also accounts for cavitation near the surface. For a deep-water scenario with 100 kg trinitrotoluene (TNT), model results are compared with the empirical Weston relationships and with the Kirkwood-Bethe theory. The comparison focuses on nonlinear propagation effects. For a shallow-water scenario with 263 kg TNT, model results are compared with experimental data for the North Sea. Good agreement is obtained for the broadband sound exposure level, while for the spectrum, deviations occur at high frequency, as a result of numerical dissipation. The model results are also compared with results calculated with the mode-stripping formula for shallow water, which yields a difference of about 10 dB.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"135-153"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575749","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

A hybrid methodology for uncertainty analysis of vibration response in fluid-filled pipes. 充液管道振动响应不确定性分析的混合方法。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037081

Zhen Li, Bilong Liu, Jianghai Wu, Andrew Peplow

{"title":"A hybrid methodology for uncertainty analysis of vibration response in fluid-filled pipes.","authors":"Zhen Li, Bilong Liu, Jianghai Wu, Andrew Peplow","doi":"10.1121/10.0037081","DOIUrl":"https://doi.org/10.1121/10.0037081","url":null,"abstract":"Reducing vibration and noise in fluid-filled pipeline systems is critical for enhancing the acoustic stealth of underwater vehicles. However, uncertainties inherent in the complex vibro-acoustic response and transmission of these systems render traditional deterministic methods inadequate. To address this, this paper proposes a hybrid methodology, named ISM-PCE, combining the impedance synthesis method (ISM) and polynomial chaos expansion (PCE), to efficiently estimate the low-order statistical moments of the frequency response function (FRF) of pipelines, validated by experiments and numerical simulations on homogeneous straight pipes. Results show that the normal ISM-PCE accurately estimates the mean FRF under single dimensional parameter (pipe inner diameter) uncertainty, but its variance estimation accuracy is insufficient in the resonance frequency band. Therefore, a stochastic frequency transformation method was introduced, significantly improving variance estimation accuracy and enabling successful multiple dimensional parameters uncertainty analysis. The results demonstrate that the normal ISM-PCE and its improved variant provide an efficient and accurate methodology for uncertainty quantification of vibration responses in fluid-filled pipeline systems. Although only fluid-filled straight pipes have been analyzed in this paper, the proposed methodology is generalizable and applicable to more complex fluid-filled pipeline systems.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"84-98"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144553854","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

Hybridization of underwater acoustic diffusion and absorption for the reduction of scattering cross section. 水声扩散与吸收的杂化以减小散射截面。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037184

Xinyu Zou, Gaokun Yu, Qile Liu

引用次数: 0