Acoustics

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Acoustics is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound and infrasound. (Wikipedia.org)






Conferences related to Acoustics

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2020 IEEE 16th International Workshop on Advanced Motion Control (AMC)

AMC2020 is the 16th in a series of biennial international workshops on Advanced Motion Control which aims to bring together researchers from both academia and industry and to promote omnipresent motion control technologies and applications.


2019 41st Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

The conference program will consist of plenary lectures, symposia, workshops andinvitedsessions of the latest significant findings and developments in all the major fields ofbiomedical engineering.Submitted papers will be peer reviewed. Accepted high quality paperswill be presented in oral and postersessions, will appear in the Conference Proceedings and willbe indexed in PubMed/MEDLINE & IEEE Xplore


2019 IEEE Industry Applications Society Annual Meeting

The Annual Meeting is a gathering of experts who work and conduct research in the industrial applications of electrical systems.


2019 IEEE International Ultrasonics Symposium (IUS)

The conference covers all aspects of the technology associated with ultrasound generation and detection and their applications.


2019 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)

robotics, intelligent systems, automation, mechatronics, micro/nano technologies, AI,


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Periodicals related to Acoustics

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Audio, Speech, and Language Processing, IEEE Transactions on

Speech analysis, synthesis, coding speech recognition, speaker recognition, language modeling, speech production and perception, speech enhancement. In audio, transducers, room acoustics, active sound control, human audition, analysis/synthesis/coding of music, and consumer audio. (8) (IEEE Guide for Authors) The scope for the proposed transactions includes SPEECH PROCESSING - Transmission and storage of Speech signals; speech coding; speech enhancement and noise reduction; ...


Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


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Most published Xplore authors for Acoustics

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Xplore Articles related to Acoustics

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How to Adjust Room Acoustics to Multifunctional Use at Music Venues

2018 Joint Conference - Acoustics, 2018

Multifunctional venues such as local culture centres have to be flexible to host many different kinds of concerts, theatre shows, and various other events. Additionally, many existing venues such as theatres, concert halls, and even opera houses need to present shows which are not typical for their purpose. This situation caused a strong need to change the acoustic parameters of ...


Computing room acoustics with CUDA - 3D FDTD schemes with boundary losses and viscosity

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011

In seeking to model realistic room acoustics, direct numerical simulation can be employed. This paper presents 3D Finite Difference Time Domain schemes that incorporate losses at boundaries and due to the viscosity of air. These models operate within a virtual room designed on a detailed floor plan. The schemes are computed at 44.1kHz, using large-scale data sets containing up to ...


Intelligent and adaptive acoustics in buildings via blind room acosutic parameter estimation

2010 2nd International Conference on Computer Engineering and Technology, 2010

From an architectural acoustics perspective multi-purpose enclosures in buildings with variable and adaptive acoustics are difficult to achieve. However, such spaces may become more feasible using amplified sound with the aid of signal processing and blind room acoustic parameter estimation techniques. The paper proposes the use of room acoustic parameters extracted from received speech or music to determine the amount ...


Directional source modeling in wave-based room acoustics simulation

2017 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), 2017

Wave-based modeling in room acoustics and virtualisation applications constitutes an alternative to geometric or ray-based approaches; finite difference time domain (FDTD) methods, defined over regular grids, are an excellent match to parallel architectures. Acoustic sources are typically included as monopoles or collections of monopoles, realised, in an FDTD setting, as a forcing of a single grid point. This paper is ...


Weighted Reduction of Impact Sound Pressure Level for a Floating Floor, According to ISO Standard and Laboratory Measurements

2018 Joint Conference - Acoustics, 2018

Insufficient impact sound insulation of floors in present architecture has been a frequent issue reported by owners of flats sold in the past few years. Floating floor is one of a few ways to improve this kind of insulation, as well as to increase the airborne sound insulation of the ceiling. A revision of EN ISO 12354-2 standard published by ...


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Educational Resources on Acoustics

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IEEE-USA E-Books

  • How to Adjust Room Acoustics to Multifunctional Use at Music Venues

    Multifunctional venues such as local culture centres have to be flexible to host many different kinds of concerts, theatre shows, and various other events. Additionally, many existing venues such as theatres, concert halls, and even opera houses need to present shows which are not typical for their purpose. This situation caused a strong need to change the acoustic parameters of the venue between different types of events. The paper presents a few ideas on how to meet this need, based on several realized music venues. Technologies used to change room acoustics are explained, as well as final results taken by acoustic measurements.

  • Computing room acoustics with CUDA - 3D FDTD schemes with boundary losses and viscosity

    In seeking to model realistic room acoustics, direct numerical simulation can be employed. This paper presents 3D Finite Difference Time Domain schemes that incorporate losses at boundaries and due to the viscosity of air. These models operate within a virtual room designed on a detailed floor plan. The schemes are computed at 44.1kHz, using large-scale data sets containing up to 100 million points each. A performance comparison is made between serial computation in C, and parallel computation using CUDA on GPUs, showing up to 80 times speed-ups. Testing on two different Nvidia Tesla cards shows the benefits of the latest FERMI architecture for double precision floating-point computation.

  • Intelligent and adaptive acoustics in buildings via blind room acosutic parameter estimation

    From an architectural acoustics perspective multi-purpose enclosures in buildings with variable and adaptive acoustics are difficult to achieve. However, such spaces may become more feasible using amplified sound with the aid of signal processing and blind room acoustic parameter estimation techniques. The paper proposes the use of room acoustic parameters extracted from received speech or music to determine the amount of additional artificial reverberation so that the desired acoustics can be achieved. The use of blind estimation from naturally occurring source enables on-line and adaptation to various changes in the space and delivers the acoustics as required for diverse uses of the space.

  • Directional source modeling in wave-based room acoustics simulation

    Wave-based modeling in room acoustics and virtualisation applications constitutes an alternative to geometric or ray-based approaches; finite difference time domain (FDTD) methods, defined over regular grids, are an excellent match to parallel architectures. Acoustic sources are typically included as monopoles or collections of monopoles, realised, in an FDTD setting, as a forcing of a single grid point. This paper is concerned with more general representations of multipole point sources, based on spatially bandlimited approximations to the Dirac delta function in 3D. As such, it becomes possible to incorporate, in a flexible manner, multipole sources without regard to direction or alignment with an underlying grid. Numerical results are presented in the case of the acoustic monopole, dipole and quadrupole.

  • Weighted Reduction of Impact Sound Pressure Level for a Floating Floor, According to ISO Standard and Laboratory Measurements

    Insufficient impact sound insulation of floors in present architecture has been a frequent issue reported by owners of flats sold in the past few years. Floating floor is one of a few ways to improve this kind of insulation, as well as to increase the airborne sound insulation of the ceiling. A revision of EN ISO 12354-2 standard published by the end of 2017 brings a new formula used to calculate weighted reduction of impact sound pressure level for floating floor screeds made of sand/cement or calcium-sulfate. The aim of this study is to point out and discuss the differences between the new and old formula, both compared to laboratory measurements carried out in the Building Research Institute (ITB).

  • The acoustics of the traditional theater in South China: The case of Wanfu theatre

    The interplay of Wanfu theatre is remarkable in traditional Guangdong Opera performance. It is located at the ancestral joss house in Foshan, where is the cradle land of Guangdong Opera. As one of the well-preserved gorgeous and elaborated historical architecture in South China, it is not only important to the architecture history, but also to the opera performance. It is nowadays frequently performance space for Guangdong opera. The architecture details are described in this work, especially with a great detail of the theatre stage. By means of both in field measurements and sound field computer simulation with room acoustics software ODEON, the most important features of the sound field in Wanfu theatre are clarified and discussed. The measurement results of acoustical parameters EDT, G and C<sub>80</sub> are compared with simulated values. Some discrepancies of strength G are found in the side balcony between the measurement results and the simulated values.

  • Underwater acoustics for ecosystem research: Synthesis of current knowledge and current advances and perspectives in Northeast Brazil

    While used in routine for fish biomass assessment in a variety of marine laboratories, underwater acoustics have an unrealized potential for multi- component observations of abiotic and biotic ecosystem characteristics. A growing number of studies is taking advantage of recent improvements (e.g. multifrequency, broad band echosounders) to simultaneously characterize physical structures (e.g. thin layers, internal waves, eddies) and organisms (from zooplankton to whales) patterns of distribution across scales from meters to thousands of kilometers. These progresses open a variety of perspectives for understanding complex processes. In this context, the aim of this short note is twofold: (i) provide examples of the application of `ecosystem acoustics' to describe and quantify complex processes; and (ii) present the current advances and perspective of the application of ecosystem acoustic in Northeast Brazil.

  • Design of Acoustic Chamber for Loudspeaker Measurements

    The design of a small anechoic chamber dedicated for measurements of the acoustical parameters of hi - fi loudspeaker systems is presented in the paper. Sound insulation, noise from technical equipment and acoustics of the room are discussed. The laboratory consists of three main rooms: anechoic chamber, control room and equipment room. The chamber of 140 m3 effective inner space with full anechoic condition from 100 Hz is planned as “box in box” construction. The acoustics of the measurement room allows for loudspeaker measurements according to EN 60268-5 standard. Sound absorption of acoustical wedges made from polyurethane foam and rockwool is also measured and compared. The disadvantages of foam wedges are discussed. The new idea of loudspeaker-microphone-walls setup that allows for measurement in the frequency range above 80 Hz is proposed. This frequency lies below the chamber cut-off frequency. The applied technical solutions of sound insulation are also discussed.

  • Identification of unknown vibrating pressures in a three-chamber unit using a Computational Inverse Acoustics Method

    Knowing the properties of vibrating systems is essential in design, controlling and reducing undesirable vibration. Direct measurements in some cases are dangerous or difficult; therefore, several other methods such as Near Field Acoustical Holography, Acoustic Array Techniques, Acoustic Transfer Matrix and Inverse Numerical Acoustics are recommended. This paper aims to provide an efficient method using Computational Inverse Acoustics to identify time history of applied pressures in a vibrating structure by measuring pressure at several points near the structure in surrounding air. This procedure is based on inverse analysis and pre-, during- and post-analysis regularizations are used to reduce the amount of the errors. Computational Inverse Acoustics Method can use in situations that the locations of applied pressures are out of reach, have a high temperature or have a special shape. To solve the problem, variety of different subjects such as acoustics, fluid and solid mechanics, vibrations, inverse analysis, regularization, optimization, fluid-structure interaction and numerical methods should be considered.

  • Finite-difference time domain method source calibration for hybrid acoustics modeling

    Finite-difference time domain methods are commonly used for acoustics modeling of enclosed geometries. For large spaces and high frequencies, the computational requirements become prohibitive in practical use. Thus, geometric acoustics algorithms are used in those cases. The results of these two classes of algorithm can be combined to model the full acoustic response. To allow direct mixing of the results, the source strengths should be calibrated. This paper derives calibration factors for various finite- difference time domain methods. It is shown that the modelled acoustics responses can then be easily combined to synthesise wide-band hybrid responses.



Standards related to Acoustics

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American National Standard Letter Symbols and Abbreviations for Quantities Used in Acoustics

To establish a standard set of letter symbols for quantities used in the science and technology of acoustics: also to establish standard abbreviations for a number of acoustical levels and related measures that are in common use. The science and technology of acoustics include sound, ultrasound, and infrasound in all media: gases, especially air; liquids, especially water; and solids are ...


IEEE Standard for the Application of Free Field Acoustic Reference to Telephony Measurements

This standard provides the techniques and rationale for referencing acoustic telephony measurements to the free field. It applies to ear related measurements such as receive, sidetone and overall.


IEEE Standard Method for Determining Objective Loudness Ratings of Telephone Connections

The procedures given in this standard may be used for determining the loudness rating of partial and complete telephone connections. For complete telephone connections, comprising overall and sidetone transmission paths, the procedures involve measurement of acoustic input and output pressures. For partial telephone connectiond comprising transmitting, receiving, or connection paths, the procedures involve measurement of acoustics pressures and electric voltages.


IEEE Standard Method for Measuring Transmission Performance of Handsfree Telephone Sets

Techniques for objective measurement of electroacoustic and voice switching characteristics of analog and digital handsfree telephone sets.



Jobs related to Acoustics

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