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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
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
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
Spatial grouping as a method to improve personalized head-related transfer function prediction. 空间分组作为提高个性化头部相关传递函数预测的方法。
IF 1.2
JASA express letters Pub Date : 2025-03-01 DOI: 10.1121/10.0036032
Keng-Wei Chang, Yih-Liang Shen, Tai-Shih Chi
{"title":"Spatial grouping as a method to improve personalized head-related transfer function prediction.","authors":"Keng-Wei Chang, Yih-Liang Shen, Tai-Shih Chi","doi":"10.1121/10.0036032","DOIUrl":"10.1121/10.0036032","url":null,"abstract":"<p><p>The head-related transfer function (HRTF) characterizes the frequency response of the sound traveling path between a specific location and the ear. When it comes to estimating HRTFs by neural network models, angle-specific models greatly outperform global models but demand high computational resources. To balance the computational resource and performance, we propose a method by grouping HRTF data spatially to reduce variance within each subspace. HRTF predicting neural network is then trained for each subspace. Results show the proposed method performs better than global models and angle-specific models by using different grouping strategies at the ipsilateral and contralateral sides.</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":"143544862","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
Variation in the production of nasal coarticulation by speaker age and speech style. 说话者年龄和说话风格对鼻音协同发音产生的影响。
IF 1.2
JASA express letters Pub Date : 2025-03-01 DOI: 10.1121/10.0036227
Georgia Zellou, Michelle Cohn
{"title":"Variation in the production of nasal coarticulation by speaker age and speech style.","authors":"Georgia Zellou, Michelle Cohn","doi":"10.1121/10.0036227","DOIUrl":"10.1121/10.0036227","url":null,"abstract":"<p><p>This study investigates apparent-time variation in the production of anticipatory nasal coarticulation in California English. Productions of consonant-vowel-nasal words in clear vs casual speech by 58 speakers aged 18-58 (grouped into three generations) were analyzed for degree of coarticulatory vowel nasality. Results reveal an interaction between age and style: the two younger speaker groups produce greater coarticulation (measured as A1-P0) in clear speech, whereas older speakers produce less variable coarticulation across styles. Yet, duration lengthening in clear speech is stable across ages. Thus, age- and style-conditioned changes in produced coarticulation interact as part of change in coarticulation grammars over time.</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":"143674970","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
Bone mineral density and hydroxyapatite alignment in leg cortical bone influence on ultrasound velocity. 骨矿物质密度和羟基磷灰石排列对腿皮质骨超声速度的影响。
IF 1.2
JASA express letters Pub Date : 2025-03-01 DOI: 10.1121/10.0036082
Shuta Kodama, Hiroshi Mita, Norihisa Tamura, Daisuke Koyama, Mami Matsukawa
{"title":"Bone mineral density and hydroxyapatite alignment in leg cortical bone influence on ultrasound velocity.","authors":"Shuta Kodama, Hiroshi Mita, Norihisa Tamura, Daisuke Koyama, Mami Matsukawa","doi":"10.1121/10.0036082","DOIUrl":"10.1121/10.0036082","url":null,"abstract":"<p><p>Bone diagnosis using x-ray techniques, such as computed tomography and dual-energy x-ray absorptiometry, can evaluate bone mineral density (BMD) and microstructure but does not provide elastic properties. This study investigated the ultrasonic properties of racehorse leg cortical bone, focusing on the relationship between wave velocity, BMD, and hydroxyapatite (HAp) crystallite alignment. The results showed a strong correlation between wave velocity and BMD, suggesting that quantitative ultrasound-obtained wave velocity is primarily influenced by BMD, followed by the HAp alignment direction.</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":"143588552","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
Voice assistant technology continues to underperform on children's speech. 语音助手技术在儿童语言方面仍然表现不佳。
IF 1.2
JASA express letters Pub Date : 2025-03-01 DOI: 10.1121/10.0036052
Holly Bradley, Madeleine E Yu, Elizabeth K Johnson
{"title":"Voice assistant technology continues to underperform on children's speech.","authors":"Holly Bradley, Madeleine E Yu, Elizabeth K Johnson","doi":"10.1121/10.0036052","DOIUrl":"10.1121/10.0036052","url":null,"abstract":"<p><p>Voice assistant (VA) technology is increasingly part of children's everyday lives. But how well do these systems understand children? No study has asked this with children under 5 years old. Here, two versions of Siri, and one of Alexa, were tested on their ability to transcribe utterances produced by 2-, 3-, and 5-year-olds. Human listeners (mothers and undergraduates) were also tested. Results showed that while Siri's performance on children's speech has improved in recent years, even the newest Siri and Alexa models struggle with children's speech. Human listeners far outperformed VA systems with all ages, especially with the youngest children's speech.</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":"143544863","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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