Acta Acustica united with Acustica最新文献_第10页

The Acoustical Effect of Musicians' Movements During Musical Performances 音乐表演中音乐家动作的声学效果

Acta Acustica united with Acustica Pub Date : 2019-03-01 DOI: 10.3813/AAA.919319

David Ackermann, Christoph Böhm, F. Brinkmann, S. Weinzierl

{"title":"The Acoustical Effect of Musicians' Movements During Musical Performances","authors":"David Ackermann, Christoph Böhm, F. Brinkmann, S. Weinzierl","doi":"10.3813/AAA.919319","DOIUrl":"https://doi.org/10.3813/AAA.919319","url":null,"abstract":"Acoustic musical instruments act as dynamic sound sources communicating the expressive intentions of a performer to the audience in a dedicated spatial environment. From an acoustical point of view, the directivity of musical instruments is relevant both for the loudness and timbre of an instrument at a certain position in the loudness and timbre of an instrument at a certain position in the audience, as well as for the spatial characteristics of the generated sound field. Musical instruments, however, are dynamic sound sources always moved by musicians as an element of their performance on stage. This work aims at assessing the acoustical effect and the perceptual relevance of these movements. For this purpose, we have recorded solo musical performances with all standard orchestral instruments with an optical motion tracking system, as well as the corresponding audio signals. The effect of the movements was evaluated by analysing the spectral fluctuation and the time-dependence of room acoustical parameters in a virtual acoustic environment in anechoic and reverberant conditions. In a subsequent listening test, an auralization of the static and dynamic musical performance was presented to listeners by binaural synthesis, showing that the signal-related fluctuations are clearly audible both in anechoic and reverberant situations. We discuss different approaches how to consider these effects for the simulation of natural acoustic sources in virtual acoustic reality.","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"189 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76511246","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: 10

Wide Phononic Band Gaps in the Yablonovite Structure with Spheres 含球亚硼云母结构中的宽声子带隙

Acta Acustica united with Acustica Pub Date : 2019-03-01 DOI: 10.3813/AAA.919315

A. Konstantopoulou, N. Aravantinos-Zafiris, M. Sigalas

引用次数: 5

Auralization of a Car Pass-By Using Impulse Responses Computed with a Wave-Based Method 使用基于波的方法计算脉冲响应的汽车通过的听觉化

Acta Acustica united with Acustica Pub Date : 2019-03-01 DOI: 10.3813/AAA.919321

F. Georgiou, M. Hornikx, A. Kohlrausch

{"title":"Auralization of a Car Pass-By Using Impulse Responses Computed with a Wave-Based Method","authors":"F. Georgiou, M. Hornikx, A. Kohlrausch","doi":"10.3813/AAA.919321","DOIUrl":"https://doi.org/10.3813/AAA.919321","url":null,"abstract":"Auralization of traffic noise can be of great value for city planners and in the communication to citizens. In inner city environments, auralization of traffic noise based on predictions might require a wave-based method for the low frequencies. In this paper, a method to auralize a car pass-by using binaural impulse responses (BIRs) computed with the wave-based pseudospectral time-domain method (PSTD) in two dimensions is presented. A dry synthesized car signal is convolved with the BIRs for different locations in the street, and cross-fade windows are used in order to create a smooth transition between the source positions. Auralizations were performed for the simplified scenarios where buildings are absent, and for an environment where a long flat wall is located behind the car, opposite from the receiver. A same-different listening test was carried out in order to investigate whether increasing the angular spacing between the discrete source positions affects the perception of the car pass-by auralizations. Signal detection theory (SDT) was used for the design and analysis of the listening test. Results showed that differences exist, although they are difficult to notice. On average, 52.3% of the subjects found it almost impossible to spot any difference between auralizations with larger angular spacing (up to 10°) compared to the reference auralization (2° angular spacing).","PeriodicalId":35085,"journal":{"name":"Acta Acustica united with Acustica","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81401080","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: 7

The Actuated Violin: Variable Vibrotactile Feedback in the Violinist-Violin Interaction 驱动小提琴:小提琴手-小提琴互动中的可变振动触觉反馈

Acta Acustica united with Acustica Pub Date : 2019-03-01 DOI: 10.3813/AAA.919318

Matthias Fluckiger, T. Großhauser, G. Tröster

引用次数: 0

Role of the Resonator Geometry on the Pressure Spectrum of Reed Conical Instruments 谐振腔几何形状对簧片锥形仪器压力谱的影响

Acta Acustica united with Acustica Pub Date : 2019-03-01 DOI: 10.3813/aaa.919320

J. Kergomard, P. Guillemain, Patrick Sanchez, C. Vergez, J. Dalmont, B. Gazengel, S. Karkar

引用次数: 1

Hydrophone Reciprocity Calibration in Spherically Focused Ultrasonic Field From 1 MHz to 15 MHz 球聚焦超声场1 ~ 15 MHz水听器互易校准

Acta Acustica united with Acustica Pub Date : 2019-03-01 DOI: 10.3813/aaa.919310

Guangzhen Xing, Ping Yang, W. Shou, Min Wang, Xiujuan Feng, Longbiao He

引用次数: 1

Composite Locally Resonating Stop Band Acoustic Metamaterials 复合局部共振阻带声学超材料

Acta Acustica united with Acustica Pub Date : 2019-03-01 DOI: 10.3813/AAA.919314

S. Ebrahimi-Nejad, Majid Kheybari

引用次数: 4

Study on the Variation of Infrasound Intensity in Different Frequency Bands before Coal Sample Failure 煤样破坏前不同频段次声强度变化研究

Acta Acustica united with Acustica Pub Date : 2019-03-01 DOI: 10.3813/AAA.919311

Jiao Bing, X. Wan, R. Peng

引用次数: 1

Perceptual Dimensions of Fan Noise and Their Relationship to Indexes Based On the Specific Loudness 基于特定响度的风机噪声感知维度及其与指标的关系

Acta Acustica united with Acustica Pub Date : 2019-01-01 DOI: 10.3813/AAA.919300

Stephan Töpken, S. Par

引用次数: 8

Experimental Validation of an Acoustical Micro-Macro Model for Random Hollow Fibre Structures 随机中空纤维结构声学微观-宏观模型的实验验证

Acta Acustica united with Acustica Pub Date : 2019-01-01 DOI: 10.3813/AAA.919305

Simon Campeau, R. Panneton, S. Elkoun

引用次数: 2