Journal of the Acoustical Society of America最新文献_第2页

Linear nonreciprocal dynamics of coupled modulated systemsa).

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-02-01 DOI: 10.1121/10.0035882

Jiuda Wu, Behrooz Yousefzadeh

{"title":"Linear nonreciprocal dynamics of coupled modulated systemsa).","authors":"Jiuda Wu, Behrooz Yousefzadeh","doi":"10.1121/10.0035882","DOIUrl":"https://doi.org/10.1121/10.0035882","url":null,"abstract":"Waveguides subject to spatiotemporal modulations are known to exhibit nonreciprocal vibration transmission, whereby interchanging the locations of the source and receiver changes the end-to-end transmission characteristics. The scenario of typical interest is unidirectional transmission in long, weakly modulated systems: when transmission is possible in one direction only. Here, with a view toward expanding their potential application as devices, we explore the vibration characteristics of spatiotemporally modulated systems that are short and strongly modulated. Focusing on two coupled systems, we develop a methodology to investigate the nonreciprocal vibration characteristics of both weakly and strongly modulated systems. In particular, we highlight the contribution of phase to nonreciprocity, a feature that is often overlooked. We show that the difference between the transmitted phases is the main contributor to breaking reciprocity in short systems. We clarify the roles of primary and sideband resonances, and their overlaps, in breaking reciprocity. We discuss the influence of modulation amplitude and wavenumber on the resonances of the modulated system. We hope this work brings more attention to the dynamics of strongly modulated systems.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"157 2","pages":"1356-1367"},"PeriodicalIF":2.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458498","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

Behavioral reactions of harbor porpoises to impact pile driving noise are predicted by the auditory frequency weighted sound pressure level.

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-02-01 DOI: 10.1121/10.0035916

Jakob Tougaard

{"title":"Behavioral reactions of harbor porpoises to impact pile driving noise are predicted by the auditory frequency weighted sound pressure level.","authors":"Jakob Tougaard","doi":"10.1121/10.0035916","DOIUrl":"10.1121/10.0035916","url":null,"abstract":"Offshore impact pile driving is a major source of high level underwater noise that can disturb marine mammal behavior tens of kilometers away. Projects involving pile driving are therefore subject to environmental impact assessments, which include modelling of the spatial extent of the behavioral disturbance. Reliable predictions about behavioral reaction distances require robust estimates of the minimum received levels of noise above which animals are likely to respond. Studies of reactions of harbor porpoises to pile driving noise in the wild and playback in captivity were identified, and reaction thresholds were extracted. Thresholds were weighted with the auditory frequency weighting function for VHF-cetaceans, the functional hearing group to which porpoises belong. The thresholds derived from playback studies to animals in captivity could be frequency weighted directly, whereas thresholds from exposure to noise from actual pile driving activities were weighted via a range-dependent weighting factor. Seven studies of porpoise reactions provided a first estimate of a behavioral reaction threshold as a VHF-weighted received level (Lp,125 ms,VHF) in the range 95-115 dB re 1 μPa.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"157 2","pages":"1368-1377"},"PeriodicalIF":2.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143468259","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

Orthogonal time-frequency space modulation for underwater mobile acoustic communications.

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-02-01 DOI: 10.1121/10.0035938

Yukang Xue, Xiyuan Zhu, Y Rosa Zheng

{"title":"Orthogonal time-frequency space modulation for underwater mobile acoustic communications.","authors":"Yukang Xue, Xiyuan Zhu, Y Rosa Zheng","doi":"10.1121/10.0035938","DOIUrl":"10.1121/10.0035938","url":null,"abstract":"This paper presents a new turbo decision feedback equalizer and decoder (TDFED) for the orthogonal time-frequency space (OTFS) system of underwater mobile acoustic communications where the communication channel suffers from severe multipath and Doppler effects simultaneously. The proposed TDFED employs a set of feedforward and feedback filters in the time domain instead of the common approach that employs a normalized least mean square equalizer in the delay-Doppler domain. The receiver also utilizes low-complexity improved proportionate normalized least mean square channel estimation in the delay-Doppler domain. Practical OTFS modulation schemes are designed for acoustic transmission at a center frequency of 115 kHz and a symbol rate of 11.5 ksps (kilo-symbols-per-second). Several lake experiments in mobile communication scenarios are conducted to evaluate the proposed OTFS in comparison to the single-carrier coherent modulation (SCCM) and the orthogonal frequency division modulation (OFDM) schemes. The experimental results demonstrate that the proposed OTFS receiver effectively reduces the accuracy requirements of the Doppler compensation algorithm compared to the SCCM and OFDM schemes. The proposed TDFED algorithm achieves a much better bit error rate against long-multipath fading and severe Doppler shift than the existing delay-Doppler domain equalizers.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"157 2","pages":"1378-1390"},"PeriodicalIF":2.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143468339","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

Comparing accounts of formant normalization against US English listeners' vowel perception.

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-02-01 DOI: 10.1121/10.0035476

Anna Persson, Santiago Barreda, T Florian Jaeger

{"title":"Comparing accounts of formant normalization against US English listeners' vowel perception.","authors":"Anna Persson, Santiago Barreda, T Florian Jaeger","doi":"10.1121/10.0035476","DOIUrl":"https://doi.org/10.1121/10.0035476","url":null,"abstract":"Human speech recognition tends to be robust, despite substantial cross-talker variability. Believed to be critical to this ability are auditory normalization mechanisms whereby listeners adapt to individual differences in vocal tract physiology. This study investigates the computations involved in such normalization. Two 8-way alternative forced-choice experiments assessed L1 listeners' categorizations across the entire US English vowel space-both for unaltered and synthesized stimuli. Listeners' responses in these experiments were compared against the predictions of 20 influential normalization accounts that differ starkly in the inference and memory capacities they imply for speech perception. This includes variants of estimation-free transformations into psycho-acoustic spaces, intrinsic normalizations relative to concurrent acoustic properties, and extrinsic normalizations relative to talker-specific statistics. Listeners' responses were best explained by extrinsic normalization, suggesting that listeners learn and store distributional properties of talkers' speech. Specifically, computationally simple (single-parameter) extrinsic normalization best fit listeners' responses. This simple extrinsic normalization also clearly outperformed Lobanov normalization-a computationally more complex account that remains popular in research on phonetics and phonology, sociolinguistics, typology, and language acquisition.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"157 2","pages":"1458-1482"},"PeriodicalIF":2.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492458","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

Understanding and mitigating the impact of passing ships on underwater environmental estimation from ambient sounda).

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-02-01 DOI: 10.1121/10.0035643

John Lipor, John Gebbie, Martin Siderius

{"title":"Understanding and mitigating the impact of passing ships on underwater environmental estimation from ambient sounda).","authors":"John Lipor, John Gebbie, Martin Siderius","doi":"10.1121/10.0035643","DOIUrl":"https://doi.org/10.1121/10.0035643","url":null,"abstract":"We investigate the impact of low-rank interference on the problem of distinguishing between two seabed types using ambient sound as an acoustic source. The resulting frequency-domain snapshots follow a zero-mean, circularly-symmetric Gaussian distribution, where each seabed type has a unique covariance matrix. Detecting changes in the seabed type across distinct spatial locations can be formulated as a two-sample hypothesis test for equality of covariance, for which Box's M-test is the classical solution. Interference sources such as passing ships result in additive noise with a low-rank covariance that can reduce the performance of hypothesis testing. We first present a method to construct a worst-case interference field, making hypothesis testing as difficult as possible. We then provide an alternating optimization procedure to recover the interference-free covariance matrix. Experiments on synthetic data show that the optimized interferer can greatly reduce hypothesis testing performance, while our recovery method perfectly eliminates this interference for a sufficiently small interference rank. On real data from the New England Shelf Break Acoustics experiment, we show that our approach successfully mitigates interference, allowing for accurate hypothesis testing and improving bottom loss estimation.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"157 2","pages":"811-823"},"PeriodicalIF":2.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143256082","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

Spatial-temporal activity-informed diarization and separation.

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-02-01 DOI: 10.1121/10.0035830

Yicheng Hsu, Ssuhan Chen, Yuhsin Lai, Chingyen Wang, Mingsian R Bai

{"title":"Spatial-temporal activity-informed diarization and separation.","authors":"Yicheng Hsu, Ssuhan Chen, Yuhsin Lai, Chingyen Wang, Mingsian R Bai","doi":"10.1121/10.0035830","DOIUrl":"https://doi.org/10.1121/10.0035830","url":null,"abstract":"A robust multichannel speaker diarization and separation system is proposed by exploiting the spatiotemporal activity of the speakers. The system is realized in a hybrid architecture that combines the array signal processing units and the deep learning units. For speaker diarization, a spatial coherence matrix across time frames is computed based on the whitened Relative Transfer Functions of the microphone array. This serves as a robust feature for subsequent machine learning without the need for prior knowledge of the array configuration. A computationally efficient modified End-to-End Neural Diarization system in the Encoder-Decoder-based Attractor network is constructed to estimate the speaker activity from the spatial coherence matrix. For speaker separation, we propose the Global and Local Activity-driven Speaker Extraction network to separate speaker signals via speaker-specific global and local spatial activity functions. The local spatial activity functions depend on the coherence between the whitened Relative Transfer Functions of each time-frequency bin and the target speaker-dominant bins. The global spatial activity functions are computed from the global spatial coherence functions based on frequency-averaged local spatial activity functions. Experimental results have demonstrated superior speaker, diarization, counting, and separation performance achieved by the proposed system with low computational complexity compared to the pre-selected baselines.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"157 2","pages":"1162-1175"},"PeriodicalIF":2.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143408624","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

Characterization of fibrous media transport parameters from multi-compression-ratio measurements of normal incidence sound absorptiona).

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-02-01 DOI: 10.1121/10.0035847

Andrea Santoni, Francesco Pompoli, Cristina Marescotti, Patrizio Fausti

{"title":"Characterization of fibrous media transport parameters from multi-compression-ratio measurements of normal incidence sound absorptiona).","authors":"Andrea Santoni, Francesco Pompoli, Cristina Marescotti, Patrizio Fausti","doi":"10.1121/10.0035847","DOIUrl":"https://doi.org/10.1121/10.0035847","url":null,"abstract":"This study presents a novel approach for estimating the transport parameters that characterize the acoustic behavior of fibrous materials using the Johnson-Champoux-Allard equivalent fluid model. We propose an inversion technique, based on an optimization algorithm, to fit the Johnson-Champoux-Allard model's predictions of normal incidence sound absorption coefficient to multi-compression-ratio experimental data. Experimental measurements using the two-microphone technique within an impedance tube are conducted on fibrous material samples tested at various compression ratios. Optimization is performed using both a non-linear programming solver and a genetic algorithm. Validation of the proposed method shows good agreement with well-established techniques and demonstrates its effectiveness across a range of fibrous materials. A sensitivity analysis emphasizes the importance of selecting appropriate boundaries for the search space in the optimization process. To enhance the robustness of optimization, a two-step iterative procedure is proposed. This straightforward methodology offers a robust and reliable framework for characterizing the transport properties of fibrous materials. Its ease of implementation and accuracy make it a valuable tool for enhancing material design and optimization in acoustic engineering.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"157 2","pages":"1185-1201"},"PeriodicalIF":2.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143408644","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

Acoustic vector sensor based multi-sources localization in reverberant environment using acoustic polarization state analysis.

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-02-01 DOI: 10.1121/10.0035816

Yuan Sun, Hao Ge, Bei Wang, Kai Wang, Xiang-Yuan Xu, Ming-Hui Lu, Yan-Feng Chen

引用次数: 0

Interannual changes in sound propagation across the Gulf Streama).

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-02-01 DOI: 10.1121/10.0035815

William R Harris, Ying-Tsong Lin, Magdalena Andres

{"title":"Interannual changes in sound propagation across the Gulf Streama).","authors":"William R Harris, Ying-Tsong Lin, Magdalena Andres","doi":"10.1121/10.0035815","DOIUrl":"https://doi.org/10.1121/10.0035815","url":null,"abstract":"The effect of a changing ocean environment on sound propagation across the Gulf Stream near the New England Seamount chain is investigated using satellite altimetry and hydrographic profiles from a large set of Argo floats. Reconstruction of the Gulf Stream vertical structure is accomplished by use of an altimetry-informed gravest empirical mode (AGEM) method. The AGEMs act as transfer functions allowing for the estimation of 3D, interior sound speed fields from 2D, surface altimetry measurements. AGEMs are constructed using empirical relationships between the steric height and the temperature and salinity profiles in the region. Ray tracing and parabolic equation sound propagation models are employed to identify changes in propagation patterns over the 14-year interval between 2009 and 2023. It is found that there has been a reduction in the travel time to a range of 120 km caused by increased temperatures throughout the water column associated with a warming Gulf Stream. It is also observed that the structure of the sound speed gradient field has changed over the decadal window, causing differences in sound propagation interference patterns on the far side of the Gulf Stream.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"157 2","pages":"1004-1018"},"PeriodicalIF":2.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143390365","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

Magnified interaural level differences enhance binaural unmasking in bilateral cochlear implant users.

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-02-01 DOI: 10.1121/10.0034869

Benjamin N Richardson, Jana M Kainerstorfer, Barbara G Shinn-Cunningham, Christopher A Brown

{"title":"Magnified interaural level differences enhance binaural unmasking in bilateral cochlear implant users.","authors":"Benjamin N Richardson, Jana M Kainerstorfer, Barbara G Shinn-Cunningham, Christopher A Brown","doi":"10.1121/10.0034869","DOIUrl":"10.1121/10.0034869","url":null,"abstract":"Bilateral cochlear implant (BiCI) usage makes binaural benefits a possibility for implant users. Yet for BiCI users, limited access to interaural time difference (ITD) cues and reduced saliency of interaural level difference (ILD) cues restricts perceptual benefits of spatially separating a target from masker sounds. The present study explored whether magnifying ILD cues improves intelligibility of masked speech for BiCI listeners in a \"symmetrical-masker\" configuration, which ensures that neither ear benefits from a long-term positive target-to-masker ratio (TMR) due to naturally occurring ILD cues. ILD magnification estimates moment-to-moment ITDs in octave-wide frequency bands, and applies corresponding ILDs to the target-masker mixtures reaching the two ears at each specific time and frequency band. ILD magnification significantly improved intelligibility in two experiments: one with normal hearing (NH) listeners using vocoded stimuli and one with BiCI users. BiCI listeners showed no benefit of spatial separation between target and maskers with natural ILDs, even for the largest target-masker separation. Because ILD magnification relies on and manipulates only the mixed signals at each ear, the strategy never alters the monaural TMR in either ear at any time. Thus, the observed improvements to masked speech intelligibility come from binaural effects, likely from increased perceptual separation of the competing sources.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"157 2","pages":"1045-1056"},"PeriodicalIF":2.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11817532/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143390473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0