Acoustics Australia最新文献_第5页

Numerical and Experimental Investigations of Multiple Resonators on Reducing Tyre Cavity Resonance Noise 多腔器降低轮胎空腔共振噪声的数值与实验研究

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2023-03-24 DOI: 10.1007/s40857-023-00292-x

Yue Bao, Xiandong Liu, Zongnan Wang, Yingchun Shan, Tian He

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引用次数: 1

The Effect of Classroom Acoustic Treatment on Listening, Learning, and Well-being: A Scoping Review 课堂声学处理对听力、学习和幸福感的影响:范围回顾

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2023-03-24 DOI: 10.1007/s40857-023-00291-y

Kiri Mealings

{"title":"The Effect of Classroom Acoustic Treatment on Listening, Learning, and Well-being: A Scoping Review","authors":"Kiri Mealings","doi":"10.1007/s40857-023-00291-y","DOIUrl":"10.1007/s40857-023-00291-y","url":null,"abstract":"<div><p>Classrooms are important learning spaces, however, the acoustic conditions in these spaces can often be suboptimal. The aim of this scoping review, which used the PRISMA-ScR protocol, was to understand what is known from the literature about the effect of classroom acoustic treatment on students’ listening, learning, and well-being. Thirteen papers from the database searches were deemed relevant for the review. Information on the years of publication of the papers, the population studied, the types of acoustic treatment used, the measures and methods used to assess the effect of acoustic treatment, and the outcomes of the papers was gathered. Seven of the 13 studies reported positive effects of classroom acoustic treatment on student’s speech perception, attention, and well-being. Five studies reported both positive effects and no effect depending on the measure, condition, or population. The remaining study reported a negative effect of classroom acoustic treatment on children’s speech perception and listening effort. These findings suggest that the effect of ceiling and/or wall absorbers/diffusers on sound and reverberation in the room can help students’ speech perception, attention, reading, and well-being, but they may also reduce the speech transmission index resulting in increased listening effort. The limitations of the reviewed studies and avenues for future research on the effect of acoustic treatment on a broader range of listening, learning, and well-being outcomes for students are discussed.</p></div>","PeriodicalId":54355,"journal":{"name":"Acoustics Australia","volume":"51 2","pages":"279 - 291"},"PeriodicalIF":1.7,"publicationDate":"2023-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40857-023-00291-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50046092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

A Modified Reference Signal Selection Method for Feed-Forward Active Road Noise Control System 一种改进的前馈主动道路噪声控制系统参考信号选择方法

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2023-03-14 DOI: 10.1007/s40857-023-00290-z

Zhengdao Zhou, Shuming Chen, Yaoyu Cai, Zhang Zhang

引用次数: 1

Evaluation of the Speech Intelligibility of the Ear of Dionysius in Syracuse 锡拉丘兹酒神耳朵的言语清晰度评价

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2023-01-16 DOI: 10.1007/s40857-023-00286-9

Gino Iannace, Antonella Bevilacqua, Giuseppe Ciaburro, Amelia Trematerra

引用次数: 3

Sonar Self-noise and Acoustic Transmission of Acoustic Window Made from Functionally Gradient Materials 声纳自噪声与功能梯度材料声窗的声传输

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2022-12-05 DOI: 10.1007/s40857-022-00283-4

Fulin Zhou, Bing Li, Zilong Peng, Jun Fan, Bin Wang

{"title":"Sonar Self-noise and Acoustic Transmission of Acoustic Window Made from Functionally Gradient Materials","authors":"Fulin Zhou, Bing Li, Zilong Peng, Jun Fan, Bin Wang","doi":"10.1007/s40857-022-00283-4","DOIUrl":"10.1007/s40857-022-00283-4","url":null,"abstract":"<div><p>The sonar self-noise characteristics of an acoustic window made from multilayer functionally gradient materials (FGMs) under external turbulent pulsating pressure excitation were theoretically modeled using the multilayer plate (MLP) transfer function method and the turbulent pulsating pressure wavenumber–frequency spectrum. An MLP transfer matrix was used to determine acoustic transmission loss of the multilayer FGM plate under plane wave excitation. The theoretical model was verified by the finite element method. The FGM was fabricated from rubber and fiberglass-reinforced plastics (FRP)/carbon fiber. The acoustical transmission loss of the multilayer FGM plate and noise reduction patterns of the multilayer FGM acoustic windows were assessed at different gradients. The acoustic effect of the window on external sound waves and its spatial filtering effect on external turbulent fluctuation excitations can be adjusted by regulating the proportions of rubber and FRP, which changes the gradient variation pattern.</p></div>","PeriodicalId":54355,"journal":{"name":"Acoustics Australia","volume":"51 1","pages":"67 - 83"},"PeriodicalIF":1.7,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40857-022-00283-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50009095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

News Item 新闻

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2022-10-05 DOI: 10.1007/s40857-022-00281-6

引用次数: 0

Numerical and Experimental Study of the Effect of the Bridge of Sarasvati Veena on its Timbre 琴桥对其音色影响的数值与实验研究

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2022-09-19 DOI: 10.1007/s40857-022-00280-7

Chandrashekhar Chauhan, Pravin Singru, Radhika Vathsan

{"title":"Numerical and Experimental Study of the Effect of the Bridge of Sarasvati Veena on its Timbre","authors":"Chandrashekhar Chauhan, Pravin Singru, Radhika Vathsan","doi":"10.1007/s40857-022-00280-7","DOIUrl":"10.1007/s40857-022-00280-7","url":null,"abstract":"<div><p>The Sarasvati Veena is an Indian stringed musical instrument with a curved bridge having a parabolic equation. We study the effect of such a bridge on the timbre of the instrument. We model the interaction of the vibrating string with the bridge as frictionless impact. So we implemented an energy-conserving method where string–bridge interaction is modelled with a penalty approach. We solve the resulting Hamilton’s equations numerically. Simulations are performed with different values of bridge parameters, namely slope and curvature. The numerical model is validated by comparison with experimental analysis. We isolate the contribution of the bridge by mounting it on the sonometer in place of one of its knife-edges and a mechanism is provided on the sonometer to change the bridge slope. We mounted the sonometer on foam to minimize the effect of other structural parameters. The typical Veena timbre shows sustain of most harmonics and the revival of higher harmonics with time. These features are attributed to the shape of the metallic layer at the top of the Veena bridge, its slope and curvature. Our model also shows these features, which are further corroborated by the experiment.</p></div>","PeriodicalId":54355,"journal":{"name":"Acoustics Australia","volume":"51 1","pages":"53 - 66"},"PeriodicalIF":1.7,"publicationDate":"2022-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50038146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Antitragus Suppresses Fundamental Harmonic Pulse in a Horseshoe Bat, Rhinolophus Sinicus 反耳屏抑制马蹄铁蝙蝠的基本谐波脉冲

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2022-08-24 DOI: 10.1007/s40857-022-00278-1

Qiao Zhuang, Wen-Xiu Zhai, Fu-Xun Wang, Rui-Wen Kong

引用次数: 0

A Half-Analytical Method to Predict the Sound Absorption of Multiple Inhomogeneous Resonators Based on Sellers’ Method 基于塞勒法的多非均匀腔吸声半解析预测方法

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2022-08-09 DOI: 10.1007/s40857-022-00274-5

Chen Lu, Wenjiong Chen, Xiaopeng Wang, Shutian Liu

引用次数: 0

Mechanical and Acoustic Properties of Ceramsite Sound Absorbing Boards with Gradient Structure 梯度结构陶粒吸声板的力学与声学性能

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2022-08-07 DOI: 10.1007/s40857-022-00276-3

Kai Yang, Guangcheng Long, Zhuo Tang, Xiaoyan Pan, Weiqing Su, Youjun Xie

{"title":"Mechanical and Acoustic Properties of Ceramsite Sound Absorbing Boards with Gradient Structure","authors":"Kai Yang, Guangcheng Long, Zhuo Tang, Xiaoyan Pan, Weiqing Su, Youjun Xie","doi":"10.1007/s40857-022-00276-3","DOIUrl":"10.1007/s40857-022-00276-3","url":null,"abstract":"<div><p>In this work, ceramsite was utilized to fabricate the sound-absorbing boards, in which two types of structure were considered, specifically, single-layer board with homogenous structure and double-layer board with gradient structure. The physical, mechanical and acoustic properties of these prepared ceramsite sound absorbing boards were studied, including the bulk density, compressive strength, flexural strength, softening coefficient, sound absorption coefficient and sound reduction index. The results show that the double-layer board with appropriate\u0000mixture design\u0000exhibited almost identical bulk density and mechanical strength to the single-layer board. All ceramsite sound absorbing boards had compressive and flexural strengths of more than 3 MPa and 1 MPa, respectively, and also demonstrated good water resistance. In terms of sound absorption and sound insulation properties, the overall performance of the double-layer board with reasonable gradient structure was better than that of the single-layer board. In addition, the physical structure models of ceramsite sound absorbing boards were established to illustrate the variation of mechanical properties and disclose the mechanism of sound absorption and insulation in the material.</p></div>","PeriodicalId":54355,"journal":{"name":"Acoustics Australia","volume":"50 3","pages":"393 - 403"},"PeriodicalIF":1.7,"publicationDate":"2022-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50012495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1