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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
The stability of articulatory and acoustic oscillatory signals derived from speecha). 源自语音的发音和声学振荡信号的稳定性。
IF 1.2
JASA express letters Pub Date : 2025-04-01 DOI: 10.1121/10.0036389
Jessica Campbell, Dani Byrd, Louis Goldstein
{"title":"The stability of articulatory and acoustic oscillatory signals derived from speecha).","authors":"Jessica Campbell, Dani Byrd, Louis Goldstein","doi":"10.1121/10.0036389","DOIUrl":"https://doi.org/10.1121/10.0036389","url":null,"abstract":"<p><p>Articulatory underpinnings of periodicities in the speech signal are unclear beyond a general alternation of vocal tract opening and closing. This study evaluates a modulatory articulatory signal that captures instantaneous change in vocal tract posture and its relation with two acoustic oscillatory signals, comparing stabilities to the progression of vowel and stressed vowel onsets. Modulatory signals can be calculated more efficiently than labeling linguistic events. These signals were more stable in periodicity than acoustic vowel onsets and not different from stressed vowel onsets, suggesting that an articulatory modulation function can provide a useful method for indexing foundational periodicities in speech without tedious annotation.</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":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12010241/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144022521","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
Evaluating synthesized speech intelligibility in noise. 评价噪声环境下的合成语音清晰度。
IF 1.2
JASA express letters Pub Date : 2025-04-01 DOI: 10.1121/10.0036397
Ye Yang, Dathan Nguyen, Katherine Chen, Fan-Gang Zeng
{"title":"Evaluating synthesized speech intelligibility in noise.","authors":"Ye Yang, Dathan Nguyen, Katherine Chen, Fan-Gang Zeng","doi":"10.1121/10.0036397","DOIUrl":"https://doi.org/10.1121/10.0036397","url":null,"abstract":"<p><p>Humans can modify their speech to improve intelligibility in noisy environments. With the advancement of speech synthesis technology, machines may also synthesize voices that remain highly intelligible in noise condition. This study evaluates both the subjective and objective intelligibility of synthesized speech in speech-shaped noise from three major speech synthesis platforms. It was found that synthesized voices have a similar intelligibility range to human voices, and some synthesized voices were more intelligible than human voices. It was also found that two modern automatic speech recognition systems recognized 10% more words than human listeners.</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":"144058097","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
Enhancing speech intelligibility in optical microphone systems through physics-informed data augmentation. 通过物理数据增强增强光学麦克风系统的语音清晰度。
IF 1.2
JASA express letters Pub Date : 2025-04-01 DOI: 10.1121/10.0036356
Jia-Wei Chen, Jia-Hui Li, Yi-Hao Jiang, Yi-Chang Wu, Ying-Hui Lai
{"title":"Enhancing speech intelligibility in optical microphone systems through physics-informed data augmentation.","authors":"Jia-Wei Chen, Jia-Hui Li, Yi-Hao Jiang, Yi-Chang Wu, Ying-Hui Lai","doi":"10.1121/10.0036356","DOIUrl":"10.1121/10.0036356","url":null,"abstract":"<p><p>Laser doppler vibrometers (LDVs) facilitate noncontact speech acquisition; however, they are prone to material-dependent spectral distortions and speckle noise, which degrade intelligibility in noisy environments. This study proposes a data augmentation method that incorporates material-specific and impulse noises to simulate LDV-induced distortions. The proposed approach utilizes a gated convolutional neural network with HiFi-GAN to enhance speech intelligibility across various material and low signal-to-noise ratio (SNR) conditions, achieving a short-time objective intelligibility score of 0.76 at 0 dB SNR. These findings provide valuable insights into optimized augmentation and deep-learning techniques for enhancing LDV-based speech recordings in practical applications.</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":"143766092","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
Perception-production link mediated by position in the imitation of Korean nasal stops. 韩语鼻塞模仿中位置介导的感知-产生联系。
IF 1.2
JASA express letters Pub Date : 2025-03-01 DOI: 10.1121/10.0036057
Jiwon Hwang, Yu-An Lu
{"title":"Perception-production link mediated by position in the imitation of Korean nasal stops.","authors":"Jiwon Hwang, Yu-An Lu","doi":"10.1121/10.0036057","DOIUrl":"10.1121/10.0036057","url":null,"abstract":"<p><p>This study explores how perceptual cues in two positions influence imitation of Korean nasal stops. As a result of initial denasalization, nasality cues are secondary in the initial position but primary in the medial position. Categorization and imitation tasks using CV (consonant-vowel) and VCV (vowel-consonant-vowel) items on a continuum from voiced oral to nasal stops were completed by 32 Korean speakers. Results revealed categorical imitation of nasality medially, whereas imitation was gradient or minimal initially. Furthermore, individuals requiring stronger nasality cues to categorize a nasal sound produced greater nasality in imitation. These findings highlight a perception-production link mediated by positional cue reliance.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143544861","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
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