The Journal of the Acoustical Society of America最新文献_第9页

Articulatory working space in first and second languages 第一语言和第二语言的发音工作空间

The Journal of the Acoustical Society of America Pub Date : 2023-10-01 DOI: 10.1121/10.0023422

Yunjung Kim, Austin Thompson

{"title":"Articulatory working space in first and second languages","authors":"Yunjung Kim, Austin Thompson","doi":"10.1121/10.0023422","DOIUrl":"https://doi.org/10.1121/10.0023422","url":null,"abstract":"Articulatory working space (acoustic and kinematic) is often studied to understand the overall size (limits) of a speaker’s articulatory behaviors. For example, prior research has shown that the magnitude of articulators’ movement (e.g., maximum tongue advancement, lip aperture) changes as a function of speech effort (loud, clear, and slow speech). To better understand second language acquisition in adults (i.e., articulatory working space determined by the language or anatomical differences), we compare both acoustic and kinematic working space of adult learners of English between their first language (L1) and second language (L2), which is also compared with that of native speakers of English. Specifically, the articulatory convex hull is measured during passage reading for both acoustic (F1 and F2 trajectories) and kinematic (tongue trajectories on x- and y-dimensions) data. Participants include 11 adult learners of English (four men and seven women) with a Korean language background and 10 adult L1 speakers of English (six men and four women). In the presentation, the findings will be discussed to address whether articulatory space is (1) different between native and nonnative languages (determined by linguistic needs) or (2) rather a constant articulatory characteristic of speakers between the languages, regardless of the speaker’s English proficiency.","PeriodicalId":256727,"journal":{"name":"The Journal of the Acoustical Society of America","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327258","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

Consonant and vowel rounding: Same acoustics, different visuals 辅音和元音变圆：声音相同，视觉不同

The Journal of the Acoustical Society of America Pub Date : 2023-10-01 DOI: 10.1121/10.0023297

Baichen Du, Alexandra Pfiffner, Keith Johnson

{"title":"Consonant and vowel rounding: Same acoustics, different visuals","authors":"Baichen Du, Alexandra Pfiffner, Keith Johnson","doi":"10.1121/10.0023297","DOIUrl":"https://doi.org/10.1121/10.0023297","url":null,"abstract":"The phonological feature [±round] is normally associated with vowels, but this feature is also relevant for some consonant contrasts, such as the retroflex/non-retroflex sibilant contrast in Mandarin. One might assume that contrastive lip rounding would be the same gesture for consonants and vowels within language. However, because similar acoustic results can be achieved through different articulations, we hypothesize that the exact parameters of rounding might be variable for different segment types. An audiovisual production experiment was conducted with 30 Mandarin native speakers. Subjects produced 35 words with sibilants onsets (retroflexes /ʂ, ʈʂ, ʈʰ/, alveolars /s, ts, tsʰ/, palatoalveolars /ɕ, tɕ, tɕʰ/), and 40 words with high-front rounded/unrounded nuclei (/i/ and /y/). We found robust individual variation and that consonants and vowels were characterized with different visual properties: /y/ had small aperture in both vertical and horizontal directions and therefore smaller lip opening area than in /i/, while retroflexes had smaller horizontal but larger vertical apertures than alveolars or palatals. Acoustical consequences of rounding were similar: both spectral Center of Gravity and F1–F4 were lowered compared to unrounded counterparts, indicating that the same phonological feature may have multiple visual/articulatory correlates.","PeriodicalId":256727,"journal":{"name":"The Journal of the Acoustical Society of America","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327260","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

Seabed classification using acoustic signals: A decision tree approach 利用声学信号进行海底分类：决策树方法

The Journal of the Acoustical Society of America Pub Date : 2023-10-01 DOI: 10.1121/10.0023609

Diego Rios, Z. Michalopoulou

{"title":"Seabed classification using acoustic signals: A decision tree approach","authors":"Diego Rios, Z. Michalopoulou","doi":"10.1121/10.0023609","DOIUrl":"https://doi.org/10.1121/10.0023609","url":null,"abstract":"Decision trees are versatile machine learning algorithms that are frequently used in classification and regression tasks. In this work, decision trees are employed as tools for sediment classification using sound waves propagating in the ocean and their behavior and features. We first analyze the structure of received time series at deployed hydrophones, extracting characteristic features (kurtosis and skewness, for example). Feature values then form vectors that are used as input patterns to the trees. A training step is the first stage of the machine learning approach with the trees trained to recognize sediment types based on feature values. The method is subsequently tested on feature vectors obtained from noise-corrupted time series. The performance depends on Signal-to-Noise Ratio values as expected and the method is found to be superior to conventional machine learning approaches. The addition of tools such as principal component analysis as well as spectrogram processing and time-frequency curve fitting further enhances the method. The decision tree technique provides an effective and efficient solution to the problem of sediment classification using acoustic data. [Work supported by ONR.]","PeriodicalId":256727,"journal":{"name":"The Journal of the Acoustical Society of America","volume":"85 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327270","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

Application of audio spectrogram transformer machine learning model for audio tagging of construction activities 音频频谱图变换器机器学习模型在建筑活动音频标记中的应用

The Journal of the Acoustical Society of America Pub Date : 2023-10-01 DOI: 10.1121/10.0023692

Ben Cooper-Woolley, Sipei Zhao

{"title":"Application of audio spectrogram transformer machine learning model for audio tagging of construction activities","authors":"Ben Cooper-Woolley, Sipei Zhao","doi":"10.1121/10.0023692","DOIUrl":"https://doi.org/10.1121/10.0023692","url":null,"abstract":"Major construction projects are approved based on an Environmental Impact Statement, which includes modeled predictions of noise impacts based on planned program. However, actual on site construction activities can differ significantly from planned works, resulting in modeled acoustic impacts (which have been used to mitigate impacts and inform stakeholders) out of date. A potential solution to this may be the use of machine learning models, to initially classify, and later predict, actual on site activities and commensurate impacts on nearby stakeholder and communities caused by site works. By leveraging emerging lower cost, smaller noise monitoring devices more data can be collected at receivers, and classified to determine the contributing sources of sound. SiteHive has worked with the University of Technology Sydney to design and develop a machine learning model to classify construction works in real-time on site, integrated as part of the SiteHive Hexanode multi-sensor environmental monitoring device. This presentation will showcase the design and development undertaken to date, and highlight results as tested as part of a major works program.","PeriodicalId":256727,"journal":{"name":"The Journal of the Acoustical Society of America","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327318","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

Acoustical Society of America Silver Medal in Speech Communication 2020: Ann Cutler 美国声学学会 2020 年语音传播银奖：安-卡特勒

The Journal of the Acoustical Society of America Pub Date : 2023-10-01 DOI: 10.1121/10.0021520

引用次数: 0

Acoustically stimulated electromagnetic method for sensing electric and magnetic properties 用于感应电特性和磁特性的声激励电磁方法

The Journal of the Acoustical Society of America Pub Date : 2023-10-01 DOI: 10.1121/10.0023572

Nobuto Kaitoh, Kenji Ikushima

{"title":"Acoustically stimulated electromagnetic method for sensing electric and magnetic properties","authors":"Nobuto Kaitoh, Kenji Ikushima","doi":"10.1121/10.0023572","DOIUrl":"https://doi.org/10.1121/10.0023572","url":null,"abstract":"A measurement technique for detecting acoustically induced polarization is introduced. Ultrasonic irradiation can generate alternating electric or magnetic polarization in materials via electromechanical or magnetomechanical coupling, respectively. It follows that electromagnetic fields are often emitted to the surrounding environment when materials are acoustically stimulated. The first harmonic response of the acoustically stimulated electromagnetic (ASEM) field is detected by a resonant antenna tuned to the ultrasound frequency. Ultrasound can temporally modulate the magnetic polarization (magnetization) in ferromagnetic materials, resulting in magnetic imaging and magnetic hysteresis measurements via ultrasonic stimulation. Ultrasonic probing of local magnetic properties gives unique magnetic measurements and is a promising tool in steel inspection. Furthermore, the ASEM response is generated in not only inorganic crystals but also biological tissues such as bones, tendons, and the aortic wall. The response signal is well explained by stress-induced electric polarization of biological tissues, which depends on the crystallinity of fibrous proteins. Therefore, the ASEM method opens possibilities for unique noninvasive sensing in medical fields. In this talk, we will discuss the origin of the ASEM response in various materials and its applications including steel and human measurements.","PeriodicalId":256727,"journal":{"name":"The Journal of the Acoustical Society of America","volume":"303 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327453","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

Application of lung ultrasound surface wave elastography in the evaluation of diffuse lung diseases 肺超声表面波弹性成像在弥漫性肺部疾病评估中的应用

The Journal of the Acoustical Society of America Pub Date : 2023-10-01 DOI: 10.1121/10.0023342

Sanjay Kalra, Brian Bartholmai, Xiaoming Zhang

{"title":"Application of lung ultrasound surface wave elastography in the evaluation of diffuse lung diseases","authors":"Sanjay Kalra, Brian Bartholmai, Xiaoming Zhang","doi":"10.1121/10.0023342","DOIUrl":"https://doi.org/10.1121/10.0023342","url":null,"abstract":"The evaluation of diffuse lung disease invariably involves chest computerized tomography (CT). The detailed information obtained is often equivalent to that from lung biopsies. It, however, involves exposure to ionising radiation which limits its repeated application in monitoring and follow up. Ultrasound techniques offer potentially safer/cheaper alternatives and lung ultrasound surface wave elastography (LUSWE) is a novel, noninvasive, and clinically feasible technique to quantify lung stiffness, an important biomechanical property that changes in diffuse fibrotic and infiltrative lung diseases. We have developed a sensitive, accurate and reproducible technique to measure changes in lung surface stiffness by using surface wave transmission speed and demonstrated its value in detecting and staging the degree of fibrosis in diffuse interstitial lung diseases, specifically idiopathic pulmonary fibrosis and progressive systemic sclerosis associated lung disease, as well as changes in heart failure. The technique consists of ultrasound detection of the propagation speed of a wave generated by the vibrations from an indenting shaker in multiple intercostal spaces to provide a representative assessment of both lungs. It offers the prospect of simple, radiation-free, repetitive assessment of changes in acute and chronic diffuse lung diseases with the potential for easy and rapid bedside use, all important considerations in clinical practice.","PeriodicalId":256727,"journal":{"name":"The Journal of the Acoustical Society of America","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327491","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

Physics-informed learning for modeling infrasound propagation in extreme weather conditions 为极端天气条件下的次声传播建模的物理信息学习

The Journal of the Acoustical Society of America Pub Date : 2023-10-01 DOI: 10.1121/10.0023491

Christophe Millet, Thi Nguyen Khoa Nguyen, Mathilde Mougeot

{"title":"Physics-informed learning for modeling infrasound propagation in extreme weather conditions","authors":"Christophe Millet, Thi Nguyen Khoa Nguyen, Mathilde Mougeot","doi":"10.1121/10.0023491","DOIUrl":"https://doi.org/10.1121/10.0023491","url":null,"abstract":"Extreme events in fluid flows are characterized by the coexistence of complex nonlinear dynamics, high intrinsic dimensionality and intermittency, which often results in spatially localized disturbances (turbulence spots, gravity wave breaking). Although many studies have shown that atmospheric ducting of infrasound is sensitive to these disturbances, yet the link between their statistical properties and that of the infrasound wavefield remains an open question, mainly because very little data are available for extreme events. The present work focuses on catastrophic events in climate systems where the amount of data available (typically a few decades) is not sufficient to extrapolate the PDFs. This class of problem involves geophysical fluid flows over climate scales where reanalysis data are a reliable source of information. In contrast to methods that rely on standard models to compute the PDFs from available data, the focus here is on data-driven methods that encode some information about the wave dynamics. The idea behind this approach is to combine two sources of information (reanalysis data and wave theory) using physics-informed neural networks to extrapolate the PDFs. The performance of this approach is illustrated around two types of events that affect infrasound propagation: sudden stratospheric warmings and mountain-induced extreme weathers.","PeriodicalId":256727,"journal":{"name":"The Journal of the Acoustical Society of America","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327510","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

Recent findings regarding noise from tactical jet engines 关于战术喷气发动机噪音的最新发现

The Journal of the Acoustical Society of America Pub Date : 2023-10-01 DOI: 10.1121/10.0023676

Kent L Gee, Matthew A. Christian, Hunter J. Pratt, Michèle L. Eggleston

{"title":"Recent findings regarding noise from tactical jet engines","authors":"Kent L Gee, Matthew A. Christian, Hunter J. Pratt, Michèle L. Eggleston","doi":"10.1121/10.0023676","DOIUrl":"https://doi.org/10.1121/10.0023676","url":null,"abstract":"This paper reviews the outcomes of several recent investigations into full-scale supersonic jet noise. First, concordance has been shown between a T-7A-installed GE F404 engine’s sound power and classical jet noise theory in both the subsonic and supersonic regimes [M. A. Christian et al., JASA Express Lett. 3, 073601 (2023)]. The results indicate approximate agreement between the “eighth-power” law for subsonic engine conditions and the “third-power” law for supersonic engine conditions, with a radiation efficiency of ∼0.5–0.6% at afterburner. However, a sudden jump in radiation efficiency in the jet’s transonic region is not presently explained. Second, normalized far field-derived sound power spectra for the F404 do not agree well with a curve found in NASA SP-8072 (Eldred, 1971), likely indicating differences between the importance of different Strouhal number regimes in military jet and rocket noise and, possibly, different radiation phenomena. Third, the maximum directivity angle for overall level appears to be primarily driven by the convective Mach number associated with Kelvin–Helmholtz instability waves (M. A. Christian et al., AIAA Paper 2023-3351). Together, these recent findings represent improved understanding of full-scale tactical jet noise phenomena. [Work supported by ONR.]","PeriodicalId":256727,"journal":{"name":"The Journal of the Acoustical Society of America","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327602","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

Mechanical disintegration of benign and malignant tumors in ex vivo human prostate tissues using boiling histotripsy 利用沸腾组织碎裂法对体外人体前列腺组织中的良性肿瘤和恶性肿瘤进行机械分解

The Journal of the Acoustical Society of America Pub Date : 2023-10-01 DOI: 10.1121/10.0023520

V. Khokhlova, P. Rosnitskiy, S. Tsysar, M. Karzova, S. Buravkov, Natalya V. Danilova, Pavel G. Malkov, E. Ponomarchuk, O. Sapozhnikov, Tatiana Khokhlova, A. Maxwell, Yak-Nam Wang, A. Kadrev, A. Chernyaev, G. Schade

{"title":"Mechanical disintegration of benign and malignant tumors in ex vivo human prostate tissues using boiling histotripsy","authors":"V. Khokhlova, P. Rosnitskiy, S. Tsysar, M. Karzova, S. Buravkov, Natalya V. Danilova, Pavel G. Malkov, E. Ponomarchuk, O. Sapozhnikov, Tatiana Khokhlova, A. Maxwell, Yak-Nam Wang, A. Kadrev, A. Chernyaev, G. Schade","doi":"10.1121/10.0023520","DOIUrl":"https://doi.org/10.1121/10.0023520","url":null,"abstract":"The feasibility of boiling histotripsy (BH) to mechanically liquefy ex vivo human prostate tissue with benign hyperplasia (BPH) and adenocarcinoma (PCa) was assessed. Volumetric BH lesions were generated in fresh tissue samples under B-mode guidance using a 1.5-MHz focused transducer, 10- and 1-ms pulses with 1% duty cycle. Prior to BH exposures, the samples were analyzed using shear wave elastography (SWE) to determine whether their mechanical properties were clinically representative. Completeness and efficiency of ablation for BH lesions were evaluated grossly, histologically, and using B-mode ultrasound. The SWE measured Young’s modulus of the samples was shown to be within the typical range observed clinically. During the exposures, BH-induced hyperechogenic bubbles were visible using B-mode, and post-treatment hypoechoic regions indicated successful tissue fractionation. Gross analysis of the exposed samples with BPH revealed ablation of the targeted tissue inside stiff BPH nodules. The sonications using 1-ms pulses (with 150 pulses-per-focus) were twofold faster comparing to 10-ms (with 30 pulses-per-focus). Histological analysis revealed liquefied lesions containing homogenized cell debris in all BPH samples. A pilot experiment of human PCa tumor fractionation into subcellular fragments was confirmed histologically. [Work supported by R01CA258581, R01DK119310, and RSF 20-12-00145.]","PeriodicalId":256727,"journal":{"name":"The Journal of the Acoustical Society of America","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327676","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