Journal of the Acoustical Society of America最新文献_第5页

Addressing atmospheric absorption in adaptive rectangular decomposition. 在自适应矩形分解中解决大气吸收问题。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2024-10-01 DOI: 10.1121/10.0030468

Gerardo Cicalese, Gabriele Ciaramella, Ilario Mazzieri

引用次数: 0

Strategic deployment in the deep: Principled underwater sensor placement optimization with three-dimensional acoustic map. 深海战略部署：利用三维声学地图优化水下传感器的布置原则。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2024-10-01 DOI: 10.1121/10.0032456

Xiaohan Zhu, Ye Wang, Zeyu Fang, Lei Cheng, Jianlong Li

{"title":"Strategic deployment in the deep: Principled underwater sensor placement optimization with three-dimensional acoustic map.","authors":"Xiaohan Zhu, Ye Wang, Zeyu Fang, Lei Cheng, Jianlong Li","doi":"10.1121/10.0032456","DOIUrl":"https://doi.org/10.1121/10.0032456","url":null,"abstract":"Underwater acoustic sensors are vital for monitoring marine environments and detecting targets, but their optimal placement presents challenges, particularly in deep-sea environments. This paper addresses the question of determining the optimal sensor placement in a specific ocean region through a principled optimization approach. While previous studies mainly utilized heuristic algorithms without exploiting problem-specific structures, this work explores leveraging the complex three-dimensional acoustic environment through principled modeling and tailored optimization. Specifically, intricate three-dimensional multi-directional acoustic maps are constructed for each sensor. Based on these maps, the sensor placement problem is then cast as an integer linear programming, allowing the study to leverage established theoretical results from operations research. Additionally, an alternative algorithm with its performance indicator is presented to find near-optimal solutions efficiently and can empirically reach over 99% coverage of the optimal solution. Experimental results using real-life data from the South China Sea demonstrate the effectiveness of the proposed approach in achieving much larger detection coverage compared to random and empirical strategies. Notably, the alternative fast algorithm approaches the optimal solution in significantly less time. Furthermore, experiments show that any further simplification of this approach leads to the performance degradation.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468605","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

Wideband off-grid direction-of-arrival estimation based on the improved finite rate of innovation method. 基于改进的有限创新率方法的宽带离网到达方向估计。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2024-10-01 DOI: 10.1121/10.0032396

Xin Wang, Longxiang Guo, Hui Sun

{"title":"Wideband off-grid direction-of-arrival estimation based on the improved finite rate of innovation method.","authors":"Xin Wang, Longxiang Guo, Hui Sun","doi":"10.1121/10.0032396","DOIUrl":"https://doi.org/10.1121/10.0032396","url":null,"abstract":"Off-grid direction-of-arrival estimation is a crucial research area in multi-sensor array signal processing to achieve accurate estimation in a finite sparse grid. However, current off-grid estimation methods primarily focus on narrowband processing, which may not be suitable for practical passive estimation scenarios where the targets of interest are wideband signals with various steering vectors and varying signal-to-noise ratios across frequency bins. First, we propose an improved weighting-based wideband joint finite rate of innovation algorithm to address this limitation. This algorithm extends the narrowband approach by approximating the wideband array data as multiple observations at the difference frequency using extended frequency difference weighting. Additionally, we propose an estimation method under non-ideal weighting conditions to mitigate bias caused by deviations in initial weight values through linear fitting of multiple estimation results obtained on a sparse grid. Simulation results demonstrate that our proposed algorithm outperforms existing methods by providing more accurate estimates and lower computational complexity for wideband off-grid multi-targets at low signal-to-noise ratio while unrestricted by grid limitations. Furthermore, experimental data collected from the South China Sea validate our proposed algorithm's effectiveness and superior performance for direction-of-arrival estimation of wideband off-grid targets.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468608","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

Reflection function, reflectance, and area function measurements in ears of children and adults. 测量儿童和成人耳朵的反射功能、反射率和面积功能。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2024-10-01 DOI: 10.1121/10.0032455

Douglas H Keefe, Denis F Fitzpatrick, Heather L Porter, Su Chen

{"title":"Reflection function, reflectance, and area function measurements in ears of children and adults.","authors":"Douglas H Keefe, Denis F Fitzpatrick, Heather L Porter, Su Chen","doi":"10.1121/10.0032455","DOIUrl":"10.1121/10.0032455","url":null,"abstract":"The main experiment concerned time-domain measurements of the acoustical reflection function (RF) of the human ear in adults and children (aged 5 to 8 years) using a probe inserted into the ear canal. This RF was used to calculate the area function of the ear canal versus distance along its centerline. Acoustical reflectance was calculated in the frequency domain from the RF, as was the difference in sound pressure level near the tympanic membrane relative to the probe tip. Group responses in area function, total ear-canal length, absorbance and group delay, and admittance magnitude and phase were analyzed based on sex, ear, and age. Responses were compared between children/adults and younger/older adults relative to age 50 years. Ear and sex were never significant. Significant differences were observed in children compared to adults in the area function, absorbance and group delay, and admittance magnitude and phase (0.25-4 kHz). Group delay differed between younger and older adults. A second experiment assessed level dependence of responses to better understand limitations in probe performance observed in the main experiment. These results show the utility of time-domain measurements of the area function and derived reflectance to understand sound-transmission differences across age at frequencies important to middle-ear function.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11495878/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468600","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

Enhancing ultrasonic attenuation images through multi-frequency coupling with total nuclear variation. 通过多频耦合与全核变异增强超声衰减图像。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2024-10-01 DOI: 10.1121/10.0032458

Edmundo A Miranda, Adrian Basarab, Roberto Lavarello

{"title":"Enhancing ultrasonic attenuation images through multi-frequency coupling with total nuclear variation.","authors":"Edmundo A Miranda, Adrian Basarab, Roberto Lavarello","doi":"10.1121/10.0032458","DOIUrl":"10.1121/10.0032458","url":null,"abstract":"Quantitative ultrasound is a non-invasive image modality that numerically characterizes tissues for medical diagnosis using acoustical parameters, such as the attenuation coefficient slope. A previous study introduced the total variation spectral log difference (TVSLD) method, which denoises spectral log ratios on a single-channel basis without inter-channel coupling. Therefore, this work proposes a multi-frequency joint framework by coupling information across frequency channels exploiting structural similarities among the spectral ratios to increase the quality of the attenuation images. A modification based on the total nuclear variation (TNV) was considered. Metrics were compared to the TVSLD method with simulated and experimental phantoms and two samples of fibroadenoma in vivo breast tissue. The TNV demonstrated superior performance, yielding enhanced attenuation coefficient slope maps with fewer artifacts at boundaries and a stable error. In terms of the contrast-to-noise ratio enhancement, the TNV approach obtained an average percentage improvement of 34% in simulation, 38% in the experimental phantom, and 89% in two in vivo breast tissue samples compared to TVSLD, showing potential to enhance visual clarity and depiction of attenuation images.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468589","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

Integral formulations for predicting acoustic radiation. 预测声辐射的积分公式。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2024-10-01 DOI: 10.1121/10.0030390

Sean F Wu

引用次数: 0

Sonic ambiances through fundamental needs: An approach on soundscape interventions for intensive care patientsa). 通过基本需求营造声环境：针对重症监护病人的声景干预方法a）。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2024-10-01 DOI: 10.1121/10.0030470

Gijs Louwers, Sylvia Pont, Diederik Gommers, Esther van der Heide, Elif Özcan

{"title":"Sonic ambiances through fundamental needs: An approach on soundscape interventions for intensive care patientsa).","authors":"Gijs Louwers, Sylvia Pont, Diederik Gommers, Esther van der Heide, Elif Özcan","doi":"10.1121/10.0030470","DOIUrl":"https://doi.org/10.1121/10.0030470","url":null,"abstract":"We explored the underpinnings of providing positive listener experiences for intensive care unit (ICU) patients with compositions of added sounds. Our objective was to derive an approach to such interventions based on soundscape perception and need fulfillment. In one study, we gathered qualitative empirical data about imagined soundscapes where nine fundamental needs were fulfilled. Hierarchical clustering and thematic analysis showed that imagined soundscapes clustered into four types of sonic ambiances, i.e., affective connotations with soundscapes: Comfortable, Pleasurable, Motivating, or Stimulating ambiances. We derived four design parameters to achieve these ambiances with sound compositions: eventfulness, sonic ambiance qualities, narrative structure, and sound distribution. A sound artist was asked to use these parameters to create sound compositions. In a listening experiment, we examined their effects on the perceived pleasantness and eventfulness of soundscapes and on listeners' experienced pleasure and arousal. Soundscapes were perceived as pleasant with varying eventfulness in line with our structured approach. We found a strong correlation between pleasantness and with listener's pleasure and a moderate correlation between eventfulness and with listener's arousal. Finally, we suggested that in future research, three sonic ambiance types should be considered rather than four. Concluding, we showed that our need-driven approach could form a promising way to support ICU patients.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142400587","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

Speed dependence, sources, and directivity of small vessel underwater noise. 小型船只水下噪声的速度依赖性、来源和指向性。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2024-10-01 DOI: 10.1121/10.0028385

A Torbjörn Johansson, Emilia Lalander, Anna-Sara Krång, Mathias H Andersson

{"title":"Speed dependence, sources, and directivity of small vessel underwater noise.","authors":"A Torbjörn Johansson, Emilia Lalander, Anna-Sara Krång, Mathias H Andersson","doi":"10.1121/10.0028385","DOIUrl":"https://doi.org/10.1121/10.0028385","url":null,"abstract":"Small vessels (<10 m) radiate underwater noise in sensitive coastal environments, but there is insufficient knowledge of their noise radiation. Through detailed measurements of seven small boats and a jet ski in a shallow water environment on the Swedish west coast, this study presents results on the speed dependence of small vessel underwater noise, its sources, and its directivity. For vessels with planing hulls, broadband source levels increase with speed until planing is attained. When planing, source level dependence on speed is weak. A detailed noise source analysis of one vessel showed that at low speed, tonals from the engine dominate the noise radiation, whereas at higher speeds, propeller tonals and broadband noise dominate. Noise radiation into different horizontal angles shows little angle dependence, and noise levels relative to the closest point of approach show a similar pattern across all investigated vessels. Received noise levels at approximately 100 m range are not high enough to cause hearing impairment in marine animals, but fast-moving small vessels may cause behavioural reactions or stress responses across several marine animal groups.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142349032","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

Acoustics of the alignment of narrow focus prosody and lexical stress in native and nonnative English productions. 母语英语和非母语英语中窄焦点前音和词性重音的声学对齐。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2024-10-01 DOI: 10.1121/10.0030469

Hyunah Baek

{"title":"Acoustics of the alignment of narrow focus prosody and lexical stress in native and nonnative English productions.","authors":"Hyunah Baek","doi":"10.1121/10.0030469","DOIUrl":"https://doi.org/10.1121/10.0030469","url":null,"abstract":"This study examined the acoustic correlates of the alignment between lexical stress and narrow focus prosody in English and investigated how this alignment is learned by second language learners whose native language is prosodically distinct from English. A production experiment was conducted where native English speakers and Korean learners of English were asked to read aloud sentences with a narrow focus on trisyllabic words with various stress patterns (e.g., ánimal, Novémber, submaríne). In the native English productions, the stressed syllables were characterized by either a rising F0 contour (for word-initial stress) or increased periodic energy (for word-medial and -final stress). The Korean speakers (KSs) produced stressed syllables with a rising F0 contour regardless of stress position, differing from the native speakers, and they exhibited greater periodic energy for word-medial and -final stressed syllables, similar to the native speakers. In addition, the KSs with higher English proficiency showed more native-like patterns by exhibiting a post-focus F0 drop immediately after word-initial stressed syllables. These findings are discussed in the context of existing literature and potential factors contributing to the challenges observed in L2 prosody learning.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468560","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 measurements of sediment geoacoustic properties in the New England Mud Patch and shelf breaka). 新英格兰泥块和陆架断裂带沉积物地质声学特性的直接测量a）。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2024-10-01 DOI: 10.1121/10.0032469

Megan S Ballard, Dante D Garcia, Kevin M Lee, Gabriel R Venegas, Andrew R McNeese, Preston S Wilson, Jason D Chaytor

{"title":"Direct measurements of sediment geoacoustic properties in the New England Mud Patch and shelf breaka).","authors":"Megan S Ballard, Dante D Garcia, Kevin M Lee, Gabriel R Venegas, Andrew R McNeese, Preston S Wilson, Jason D Chaytor","doi":"10.1121/10.0032469","DOIUrl":"https://doi.org/10.1121/10.0032469","url":null,"abstract":"This paper reports on an original set of direct sound speed measurements collected with the acoustic coring system in the New England Mud Patch (NEMP) and shelf break area to the south. Cores collected within the NEMP show range-dependence of the mud with slower sound speed and lower attenuation on the west side. In the shelf break region, the highest sound speeds are observed between the 200- and 350-m isobaths. The depth-dependence of the mud layer in the NEMP includes a surficial layer with a negative sound speed gradient of 28 s-1. The remainder of the mud column has a weak positive sound speed gradient of 6.2 s-1 over an isovelocity layer. Comparison between in situ and ex situ sound speed measurements provides an assessment of the effects of sediment disturbance from gravity coring operations. Small differences in the upper 2.5 m were attributed to the changes in the geoacoustic properties caused by disturbance from the coring process. Below 2.5 m, the average difference is close to zero, suggesting that these sediments were minimally disturbed. Finally, an in situ measurement of shear speed was obtained near the depth of maximum penetration. The shear speed was well correlated with sound speed from approximately the same depth interval.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502771","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