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A Multi-Domain Collocation Method for the Accurate Computation of Normal Modes in Open Oceanic and Atmospheric Waveguides 开放海洋和大气波导中正模精确计算的多域配点法
Acta Acustica united with Acustica Pub Date : 2019-05-10 DOI: 10.3813/AAA.919328
R. Sabatini, P. Cristini
{"title":"A Multi-Domain Collocation Method for the Accurate Computation of Normal Modes in Open Oceanic and Atmospheric Waveguides","authors":"R. Sabatini, P. Cristini","doi":"10.3813/AAA.919328","DOIUrl":"https://doi.org/10.3813/AAA.919328","url":null,"abstract":"","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89343916","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: 13
Analysis of Axisymmetric Structural Vibrations in Brass Instruments 铜管乐器轴对称结构振动分析
Acta Acustica united with Acustica Pub Date : 2019-05-10 DOI: 10.3813/AAA.919332
S. Balasubramanian, V. Chatziioannou, W. Kausel
{"title":"Analysis of Axisymmetric Structural Vibrations in Brass Instruments","authors":"S. Balasubramanian, V. Chatziioannou, W. Kausel","doi":"10.3813/AAA.919332","DOIUrl":"https://doi.org/10.3813/AAA.919332","url":null,"abstract":"","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76077529","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: 2
Spatial Separation Benefit for Speech Detection in Multi-Talker Babble-Noise with Different Egocentric Distances 空间分离对不同自中心距离的多说话人咿呀学语噪声检测的好处
Acta Acustica united with Acustica Pub Date : 2019-05-10 DOI: 10.3813/AAA.919330
I. Andreeva, M. Dymnikowa, A. Gvozdeva, E. Ogorodnikova, S. Pak
{"title":"Spatial Separation Benefit for Speech Detection in Multi-Talker Babble-Noise with Different Egocentric Distances","authors":"I. Andreeva, M. Dymnikowa, A. Gvozdeva, E. Ogorodnikova, S. Pak","doi":"10.3813/AAA.919330","DOIUrl":"https://doi.org/10.3813/AAA.919330","url":null,"abstract":"","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73795522","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: 2
Theoretical Investigation on the Sound Power Substitution Method 声电源替代方法的理论研究
Acta Acustica united with Acustica Pub Date : 2019-05-10 DOI: 10.3813/AAA.919325
S. Brezas, M. Schmelzer, V. Wittstock
{"title":"Theoretical Investigation on the Sound Power Substitution Method","authors":"S. Brezas, M. Schmelzer, V. Wittstock","doi":"10.3813/AAA.919325","DOIUrl":"https://doi.org/10.3813/AAA.919325","url":null,"abstract":"","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82859794","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
Acoustic Absorption with Material in Pieces and Back Air Layer 片状材料与后空气层吸声
Acta Acustica united with Acustica Pub Date : 2019-05-10 DOI: 10.3813/AAA.919336
D. Caballol, Á. Raposo
{"title":"Acoustic Absorption with Material in Pieces and Back Air Layer","authors":"D. Caballol, Á. Raposo","doi":"10.3813/AAA.919336","DOIUrl":"https://doi.org/10.3813/AAA.919336","url":null,"abstract":"The sound absorption coefficient of three different materials is proved in a reverberation room against different layouts of the material and different back air layers, compared to those results where the same material is placed as a single piece. With the analysis of the data, a linear regression model is established in order to predict, for certain frequencies, the alteration produced in the absorption coefficient by using the same amount of material but placing it in patches separated from each other, instead of in one piece, and at different distances from the wall. The model is validated and proven to be robust and it is shown to be applicable to a variety of materials. It becomes a simple predictive tool which allows to estimate in situ the improvement in the absorption property of an absorbent material due to the separation of the patches.","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79607071","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
A Comment on "Extent of Sound Image Lateralization: Influence of Measurement Method" [Acta Acustica united with Acustica 104 (2018) 748–752 DOI 10.3813/AAA.919215] 对“声像偏侧程度:测量方法的影响”的评析[声学学报与声学学报104 (2018)748-752 DOI 10.3813/AAA.919215]
Acta Acustica united with Acustica Pub Date : 2019-05-10 DOI: 10.3813/AAA.919338
Mathias Dietz, R. Baumgärtel
{"title":"A Comment on \"Extent of Sound Image Lateralization: Influence of Measurement Method\" [Acta Acustica united with Acustica 104 (2018) 748–752 DOI 10.3813/AAA.919215]","authors":"Mathias Dietz, R. Baumgärtel","doi":"10.3813/AAA.919338","DOIUrl":"https://doi.org/10.3813/AAA.919338","url":null,"abstract":"","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75411991","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
Numerical Study on the Effect of Gravity on Modal Analysis of Thin-Walled Structures 重力对薄壁结构模态分析影响的数值研究
Acta Acustica united with Acustica Pub Date : 2019-05-10 DOI: 10.3813/AAA.919335
Theo Kiesel, P. Langer, S. Marburg
{"title":"Numerical Study on the Effect of Gravity on Modal Analysis of Thin-Walled Structures","authors":"Theo Kiesel, P. Langer, S. Marburg","doi":"10.3813/AAA.919335","DOIUrl":"https://doi.org/10.3813/AAA.919335","url":null,"abstract":"Summary Computational modal analysis is usually carried out without consideration of gravity forces. This is well motivated for many structures. However, the vibrational properties of thin-walled plane or shallow shell structures are very sensitive with respect to small modifications of the shell geometry and with respect to in-plane stress and reinforcement. One reason for these in-plane stresses and geometric modifications consists in gravity. This becomes an important issue when using test data obtained under the presence of gravity to update a simulation model where the influence of gravity is neglected. This study investigates the influence of gravity on the modal parameters of a thin rectangular plate and of a thin-walled cubic box. For that, di ff erent simulation models are used. While all of them utilize the finite element method, linear and non-linear approaches are compared. The latter take into account geometrical nonlinearities due to large deformations and the influence of gravity induced stress.","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85703789","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: 3
Auditory Facing Angle Perception: The Effect of Different Source Positions in a Real and an Anechoic Environment 听觉面对角度感知:真实环境和消声环境中不同声源位置的影响
Acta Acustica united with Acustica Pub Date : 2019-05-10 DOI: 10.3813/AAA.919331
Christina Imbery, Sven Franz, S. Par, J. Bitzer
{"title":"Auditory Facing Angle Perception: The Effect of Different Source Positions in a Real and an Anechoic Environment","authors":"Christina Imbery, Sven Franz, S. Par, J. Bitzer","doi":"10.3813/AAA.919331","DOIUrl":"https://doi.org/10.3813/AAA.919331","url":null,"abstract":"","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"125 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82748426","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: 2
An Exploratory Study on the Influence of Activities on Public Space Users' Descriptions of Their Auditory Environments on Site: The Case of Amsterdam 活动对公共空间使用者现场听觉环境描述影响的探索性研究——以阿姆斯特丹为例
Acta Acustica united with Acustica Pub Date : 2019-05-10 DOI: 10.3813/AAA.919327
E. Bild, K. Pfeffer, M. Coler, L. Bertolini
{"title":"An Exploratory Study on the Influence of Activities on Public Space Users' Descriptions of Their Auditory Environments on Site: The Case of Amsterdam","authors":"E. Bild, K. Pfeffer, M. Coler, L. Bertolini","doi":"10.3813/AAA.919327","DOIUrl":"https://doi.org/10.3813/AAA.919327","url":null,"abstract":"This paper is an exploration into whether public space users performing different activities describe their auditory environments in noticeably different ways. Building on soundscape and psycholinguistic literature, a questionnaire study was conducted in a large park in Amsterdam (NL), where 92 park users described, in writing, their activities and auditory environments. Users' self-reported activities were categorized based on their level of social interaction (solitary vs. socially interactive), and using open coding, generating categories of activities grouped by semantic range. The written corpus on auditory environment descriptions was analysed through a proposed classificatory framework, coding descriptions at three semantic and one syntactic level. We preliminarily tested whether there are associations between various categories of activities and of auditory environment descriptions, categorized at different levels. Our results suggest that, while for detailed levels of activity categorization there were no non-distinct patterns, the level of social interaction of users' activities has an observable effect over users' descriptions of their auditory environments. This holds particularly in relation to types of sounds listed, as well as for differences in descriptions at a syntactic level. These findings point towards subtly diff erent auditory experiences in the same public space for users performing solitary or socially interactive activities.","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"107 2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89699765","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: 2
Influence of the Gap Flow of Axial Vehicle Cooling Fans on Radiated Narrowband and Broadband Noise 轴向车用散热风扇间隙流对窄带和宽带辐射噪声的影响
Acta Acustica united with Acustica Pub Date : 2019-05-10 DOI: 10.3813/AAA.919326
M. Becher, R. Krusche, M. Tautz, M. Mauss, Nils Springer, Florian Krömer, S. Becker
{"title":"Influence of the Gap Flow of Axial Vehicle Cooling Fans on Radiated Narrowband and Broadband Noise","authors":"M. Becher, R. Krusche, M. Tautz, M. Mauss, Nils Springer, Florian Krömer, S. Becker","doi":"10.3813/AAA.919326","DOIUrl":"https://doi.org/10.3813/AAA.919326","url":null,"abstract":"","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81906001","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: 6
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