Abstracts can be submitted to the Structured and Regular Sessions. The Congress Organisers reserve the right to shift accepted abstracts between sessions.
Structured Sessions are organised by scientists of acknowledged reputation who define the scope of the sessions, personally invite authors, review abstracts of contributed papers, schedule the papers, and finally chair the sessions.
List of the Structured Sessions:
The purpose of this structured session is to report on the latest research and development works carried out in the field of sound and vibration measurements, and analysis. Papers presented in this session can focus on experiments carried out in research laboratories or in practical installations in vehicles or in industrial applications, etc. The papers can, for example, treat sensor technology, transducers that actually consists of a combination of sensor/sensors and signal processing for sound and vibration measurements, measurement and analysis of sound and vibration in new applications areas or in challenging applications. Papers may also concern new norms on sound and vibration quantities and their purpose, and new or useful information and/or quantities extracted from sound and vibration signals.
Actuators and sensors often constitute key components of an active noise and vibration control system that will determine the overall performance of the active system. Aspects such as actuator and sensor placement, sensitivity, authority, linearity, robustness and cost are of importance in an active control system. This structured session will address recent research on traditional or new transduction technologies in active control.
This structured session continues the series of sessions on this topic at previous ICSV conferences. The purpose of this session is to report recent research on algorithms, signal processing and hardware implementation for active noise and vibration control. The latest advancements addressing linear and nonlinear control, algorithmic and signal processing optimization for efficient and robust real-time implementation as well as new processing platforms are welcome. Both fundamental aspects and practical issues related to algorithms for active control will be covered.
Acoustic metamaterials are engineered structures designed in such a way to exhibit acoustic properties not readily available in nature. One of the main issues of such artificial structures is the limited bandwidth over which the acoustic properties can be tweaked out. To overcome this, active control techniques have been identified as an enabler, driving a significant part of the scientific community towards the development of active metamaterials. This structured session aims at providing a snapshot of the research on active metamaterials and metasurfaces, through the presentation of theoretical and experimental investigations, highlighting the practical applications of such concepts.
The high intensity acoustic fields cause structural damage of a Space Shuttle or an Expendable Launch Vehicle (ELV) during the launching process. This session aims to provide a discussion platform for acoustic simulation, test and control in spacecraft. We welcome papers on acoustic measurement and signal processing, numerical analysis and prediction methods, structural optimization techniques, acoustic fatigue as well as a variety of acoustic and vibration control method including active and passive etc.
This session will gather communications on the development, validation and application of computational techniques for aero-acoustic simulations. This will cover fundamental aspects of numerical schemes as well as industrial applications such as aircraft noise, wind turbine noise, etc.
Unsteady combustion generates sound. A particularly violent form of combustion noise tends to arise if the combustion takes place in an acoustic resonator, because then the heat release rate and the sound field can interact in such a way that they amplify one another, generating a "thermoacoustic instability". This can lead to structural damage in gas turbine combustors and some types of aircraft, so avoiding thermoacoustic instabilities is paramount. They are a complicated phenomenon, involving sound waves, combustion, aerodynamic effects and structural waves, as well as the interaction between all these. This session aims to bring together scientists with an academic and/or industrial background in this area. With its focus on fundamental aspects of thermoacoustics, it complements the session T03 SS07 "Dynamics and acoustics in sprays, liquid fuel flames and aero engine combustors", which focuses on the engine applications and which is organized by Jim Kok.
Suggested topics of the current session include, but are not limited to the following: Modelling of the thermo-acoustic feedback with analytical and numerical methods; Nonlinear effects; Active control of combustion noise and thermo-acoustics; Modelling of the acoustic source processes with a view to application in analytical and numerical methods; Sound propagation in combustors with non-uniform properties; Boundary condition modelling and measurements; Physical processes involved in the generation of combustion noise.
The structured session on aircraft interior noise and vibration control invites papers related to all aspects of aircraft interior noise and vibration control, such as structure borne and airborne transmission control through passive or active means, methods for Transfer Path Analysis or noise reduction means design, laboratory testing, flight testing, modeling and validation. All papers giving insight on noise and vibration sources applicable to interior noise (turbulent boundary layer, engine noise and vibration, aircraft systems noise) are welcome
Sound emission is one of the most crucial factors in design of modern wind turbines. Turbine noise is composed of mechanical and aerodynamic components that may cause both operational and environmental challenges in noise–restricted areas. This session is dedicated to a broad range of topics related to the wind turbine noise that includes, but not limited to, aeroacoustic source modelling, mechanical noise and tonal audibility, noise reduction techniques, amplitude modulation, propagation models, prediction of background noise levels, meteorological conditions, optimal control and acoustic measurements.
The structured session on aircraft engine noise invites papers related to all aspects of aircraft engine noise control, such as fan noise, nacelle liner technology, nacelle morphing technology, combustor noise, mixer technology, shock cell noise or propeller noise. All papers giving insight into engine noise propagation to aircraft structure or landscape for cabin noise or community noise are also welcome.
Soundscape auralization defines a selected strategy to restitute an acoustic and sonic environment related to a real or virtual place. Various approaches are of interest, from acoustically accurate room acoustic renderings to more holistic approaches including meaningful sound prototypes, depending on the auralization purpose: realistic demonstrations, subjective evaluation, virtual reality, etc.
This structured sessions will address various aspects of this topic such as -Spatialized sound field rendering, in-motion user-centric auralization, optimized signal processing for real-time rendering, methods to better estimate and render room impulse responses -Room acoustics criteria reproduction (including space), insulation and absorption material auralization, impact noise auralization -Improvements of relevant reproduction systems (headphone based or multi-loudspeaker based reproduction systems) -Psychoacoustic studies results, perceptual limitations and realism criteria for interior and exterior soundscape auralization -Experience-based immersive strategies including specific recording techniques, physical or non-physical modeling synthesis, intermodal environment restitutions
This session includes basic and applied research on the topic of sound and its role in urban spaces. We invite papers on the evaluation and characterization of the public and private realms, on laboratory studies of urban sound perception, on the opportunities for soundscape planning and design in urban contexts, as well as on the mobilization of soundscape research knowledge into practice.
Action plans in urban area are issued by END every five years in Europe.
Experiences from the last third round will be presented by contributed and invited speakers, regarding different solutions adopted: traffic flow managment, speed redution, low emission zones, low noise pavements, electric vehicles, integrated actions, green barriers, urban planning, etc.
The understanding of the interaction between an acoustic wave and a complex medium is an important problem in various applications such as nondestructive testing (NDT) or biomedical ultrasound. This session will focus on experimental issues including the development of inversion procedures.
Nonlinear acoustics and vibration has become increasingly important during the last forty years due to the exponential increase of computation power, increasingly higher sensitivity of electronic instrumentation and suitable signal processing. It is a broad field, which encompasses large amplitude sound waves and vibration. The nonlinearity of materials results in nonlinear effects, which arise from defects in the materials present at all scales. Applications include nonlinear nondestructive testing (NDT), harmonic medical ultrasound imaging, high intensity focused ultrasound for noninvasive surgery, cavitation, and control of high intensity jet noise and development of new materials such as nanocomposite and memory based materials. Also included are the phenomenon of chaos, which has become popular during the last twenty years with the establishment of institutes of nonlinear science and complex systems in universities and research centres. In addition, journals are now dedicated to this subject. Chaos theory is used today even in the prediction of price movement on stock markets. Also an important topic for this session will be the application of gauge invariance approach to nonlinear acoustics and vibration which will include treatment of inverse scattering and multiple scattering problems and interactions. Structured sessions on nonlinear acoustics and vibration are present since ICSV5 in Adelaide, Australia in 1997. We have witnessed the growth in this field demonstrated by the increasing number of papers to the current number of twenty to thirty papers presented at each ICSV congress.
Acoustic cloaking is the first application of sound propagation in curvilinear spacetime. Curvilinear spacetime approach is especially suitable for intense sound and nonlinear acoustics due to the curvilinear path of intense sound field. By developing nonlinear acoustics on the curvilinear spacetime, one will increase the sensitivities, accuracies and completeness of the subject.
Also curvilinear spacetime will enable the covariance of all equations in physics. This is also a revolutionization/reformulation of nonlinear fluid mechanics and nonlinear fluid dynamics, especially for application to naval architecture and to study of jet noise, rocket noise and space shuttle noise. This structured session will introduce Einstein's field equations to acoustics. The scope of this session will include:
(1) nonlinear acoustics on curvilinear spacetime to include gravitational field
(2) derivation of acoustic field equations on curvilinear spacetime, for applications to both fluids and elastic solids.
(3) application of gauge invariance to multiple scattering and interactions on curvilinear spacetime
(3) hypersonics and astro-acoustics
(4) sonic fusion
(5) the extension of acoustic radiation force (ARF), an intense sound to curvilinear spacetime which will bring in the gravitational field. This will include topics of drug delivery and force of levitation
Papers on experimental or theoretical techniques for modelling sound generation, sound propagation and sound radiation in flow ducts will be presented in this session. Of special interest are experimental and theoretical techniques for: characterizing in-duct sound sources, propagation of sound in duct systems with flow and sound radiation from duct openings. Modelling of acoustic limers and mufflers as well as other noise reduction techniques for ducted systems and particularly relevant for this session.
The purpose of this structured session is to report on the latest developments of research works in the field of acoustic emission (AE). It is a well-known and promising field of condition monitoring, testing and diagnosis as nondestructive natures in different fields of industrial and biomedical applications. Papers presented in this session can focus on numerical or experimental investigations related to any research of AE applications in structural testing, monitoring, evaluating, characterizing, diagnostics, etc. carried out in laboratories or in practical installations in engineering or biomedical fields. Papers related to AE sensors, sensing systems, related signal processing or any other new technique to the concerned fields are also welcome to the session.
Even though it is seen as a last resort solution, hearing protection is still widely used in the industry to protect workers from harmful noise. This session covers various aspects related to the use, selection, care and maintenance of hearing protection devices (HPD). It includes subjective and objective measurements of the performance of HPD (attenuation, occlusion effect, etc.), comfort related aspects, model development and modeling strategies, steady state and impulse noise, new and advanced technologies as well as case studies.
This session is aimed, but not limited to studies on assessment and control of human exposure to vibration, biodynamic responses to hand-arm and whole-body vibration, health effects and epidemiology of occupational exposure to vibration, motion sickness and vibration perception. It also covers various topics such as suspension seats, antivibration gloves, hand-held tools, vehicle dynamics and ergonomic intervention and regulations related to vibration exposure.
Whatever their size, workshops often have noise problems. More to the point smaller entities seldom enjoy a private internal health and safety service, or environmental control for that matter, and solely rely on the labour ministry doctor – if available and willing to dabble in environmental matters. The following aspects are especially tackled in this session: i) Noise in the environment (overview of regulations, consequences on operations, monitoring the noise, noise reduction problems); ii) Noise at the workstations outdoors (assessing noise exposure, reducing noise at the source, planning the work to reduce the noise exposure, case of maintenance people); iii) Considerations with regards to the industrial building (overview of regulations, requirements for acoustic absorption, reducing the sound propagation, ensuring alarm signals can be safely heard, while making sure the neighbourhood is suitably protected); iv) Legal considerations: While one may emit recommendations and hope for the best, most of the time it is necessary to implement regulations in order to achieve a result. But is it sufficient to edit a regulation if nobody is in charge of applying it? Furthermore, even in the European Union where the rules are supposed to be identical in each member country, is the law applied in the same spirit everywhere? This session aims to compare experience gained in various countries and over a broad range of subjects, and wonder about the potential perspectives.
This session aims at collecting research and studies on theoretical and experimental subjects related to the reduction of noise and vibration generated by machinery and machine components. Papers are welcome concerning the machine vibroacoustic design as well as current and future noise and vibration control strategies. The studies on innovative numerical and experimental techniques for the analysis of sound sources and generation mechanisms are of special interest.
This structured session aims to bring together research and expertise on different subjects related to acoustic flexible materials, perforated panels or sheets, metal foams, and damping materials. Contributions in this session can cover new theoretical, manufacturing (3D printing), or experimental approaches concerning various types of materials that can be subjected to different types of excitation. Specific topics related to new and current materials may include: airborne sound absorption, airborne and impact sound insulation, damping, propagation of sound in porous media, effect of airflow, vibration and noise control systems, and design of sound absorbent ducts. This session welcomes new findings on materials for noise and vibration control.
This structured session aims to bring together research and expertise on different subjects related to damping materials. Contributions in this session can cover new theoretical, manufacturing (3D printing), or experimental approaches concerning various types of materials that can be subjected to different types of excitation. This session welcomes new findings on materials for vibration control.
Acoustics is a classic field of inquiry that has enjoyed a strong revival during the past two decades, propelled mainly by the advent of phononic crystals and acoustic metamaterials, two newly developed research areas that focused on man-made structures with acoustic properties not commonly found in nature. Whereas phononic crystals denote periodic structures exhibiting frequency bandgaps in which there can be no propagating acoustic/elastic waves, acoustic metamaterials acquire their exotic characteristics as collective manifestations of local resonators. Both phononic crystals and acoustic metamateials are composite structures comprising materials of different mass densities and hardness. In the case of acoustic metamaterials, however, the response of the composite to external excitations can differ from a rigid solid by having internal relative motions between the different material components. The past fifteen years have witnessed the novel capabilities that can arise from such locally resonant sonic materials, which are characterized not only by their subwavelength physical size, but also by their effective mass density and bulk modulus that can exhibit negative values. There are tremendous scope in the applications of acoustic metamaterials and phononic crystals, such as acoustic superlens, acoustic cloaking, aeroacoustic cloaks. The recent discovery of metamaterial as artificial phase transition manifested in quantum metamaterial producing artificial superconductivity and metamaterial as route to high temperature superconductivity. Permmitivity, permeability, effective bulk modulus and effective mass density are transport properties. Metamaterials with singularity behaviour of transport properties at point of local resonance similar to that of singularity at critical point of phase transition. Based on transport properties, one can go beyond acoustic and electromagnetic metamaterials to other forms of metamaterials. With metamaterials as artificial phase transition, one can control the degree of phase transition. The unusual phenomena exhibited by the phononic crystals and acoustic metamaterials, as well as their underlying physics, are the subjects of this structured session.
This special session will cover the following topics:
phononic crystals ; nonlinear phononic crystals ; band-gap metamaterial; negative refraction; double negative metamaterial; acoustic cloaking; aeroacoustic cloak; acoustic diodes; acoustic waveguides and resonators based on metamaterial; application of phononic device to communication; sound insulation panel using metamaterial; vibration reduction using metamaterial; acoustic metamaterial as artificial phase transition.
The purpose of this structured session is to report on the latest research and development works carried out in the field of sound absorption measurements and analysis conducted in reverberation rooms. Papers presented in this session can focus on experiments carried out in research laboratories. The papers can, for example, deal with the uncertainty analysis of sound absorption measurements in reverberation rooms and/or the uncertainty compared with those made in impedance tube for the same material(s). Modelling of sound field and measurements of the absorption coefficient even at low frequencies (few hundred Hertz and below) are other examples. Papers may also discuss new standards and/or drafts regarding reverberation room measurement techniques and original contributions about quantities that may be extracted from measured data.
This session is concerned with all aspects of hearing technology and enhancement of speech for pediatric and adult populations. Contributions addressing benefits, outcomes, or challenges related to all types of hearing devices including acoustic hearing aids, hearing assistive technology such as wireless remote microphone systems, personal sound amplification products, cochlear implants and other implantable devices are invited. The session will also include presentations of technology and techniques that aim to improve speech understanding
This session will cover current research on the development of speech tests for both clinical applications and auditory fitness for duty evaluations. Papers can focus on various aspects, including test material, administration and scoring for non-native listeners, language proficiency issues, the use of realistic test material and stimuli, test administration via telephone or over the internet, outcome measures differing from the traditional word recognition scores, and many more. Papers describing various stages of the test development process are welcomed.
This technical session focuses on the implementation of personal hearing protection in safe working routines. Papers addressing comfort, problems with communication and situational awareness, as well as issues encountered with standard hearing protectors, augmented devices and Tactile Communication And Protective Systems (TCAPS) are welcome. In addition, papers from diverse disciplinary perspectives are encouraged, including those divulging findings from the field and the laboratory.
Compressive sensing proposes that sparse signals sampled at a rate lower than the Nyquist frequency can be successfully reconstructed. This structured session covers current research and methods that take advantage of sparsity to improve signal reconstruction by using compressive sensing and sparse regularization. This includes applications to acoustical holography, beamforming, localization algorithms, and microphone array design.
This session covers recent projects and research related to room acoustics. The topics include design, modelling, virtual reality simulation and measurement of acoustically sensitive spaces.
This session covers recent research and case studies on classroom acoustics. Presentations will document the status of classroom acoustic conditions around the world, present how acoustic conditions have been found to impact the health and performance of teachers and students, and discuss what can be done to ensure appropriate classroom acoustic design.
This session is about the measurement and prediction of the sound insulation of walls, partitions, floor/ceilings, external facades and roofs of buildings and transport vehicles. Both the direct and flanking transmission of airborne and impact sound are included. Papers including the comparison of theory with experiment are particularly welcome.
Structure-borne and impact noise is invariably more complex than airborne noise in terms of measurement, prediction and determination of transmission paths. Structure-borne noise in buildings is traditionally concerned with everyday impacts from human activities such as footfall; furniture movement; object or weight drops; or high-intensity activities in fitness centers or the transmission of ground-borne vibration into the building structure. There is debate over the accuracy and practicality of structure-borne noise prediction methods, particularly when flanking structures and resilient materials are incorporated. Equally the usefulness of established single-figure rating metrics and their associated test methodology is under study with regards to human perception considering the wide range of impact sources and building partition types through which this structure-borne noise transmits. Reducing impact noise in residential buildings requires the adoption or development of materials and solutions for the control of direct and flanking structure-borne sound. Papers are sought for this technical session that address these issues related to structure-borne and impact noise, their transmission paths and prediction methods in buildings.
The measurement of underwater sound can include understanding the naturally occurring acoustic phenomena such as ambient noise generated in the volume of the ocean and at the boundaries and how that propagates and scatters. This is often known as Acoustical Oceanography. Within this definition there is also the monitoring and measurement of biological sources ( eg. Snapping shrimp, fish, marine mammals). Sonar technology is also often used for the detection man-made targets in the background of the naturally occurring sounds already described. This session will include papers that cover all aspects of technology advances for the measurement of the aforementioned sound sources, i.e. Sensor types and their geometry, signal conditioning, beamforming, signal processing, detection, classification and tracking and image processing. Additional oceanographic sensors may be included for ground truth or benchmarking, but the core of the paper should be about the acoustic measurements.
Noise and vibrations generated by ships affect a wide range of receivers: crew and passengers inside the vessel, inhabitants of the coastal areas and marine fauna outside it. Recent studies suggest that a large percentage of people living in urban areas close to harbours and a number of marine species, at different evolutionary levels (in particular mammals and cephalopods), suffer from ship N&V emissions in air and in water. The present degree of knowledge of the phenomena involved in the noise emissions inside and outside ships is quite different, as a result also of the time elapsed since the negative effects were realized and therefore studied. The development of the normative framework in the various areas reflects these differences, but there are expectations for improvements on all fronts and need to be supported by the scientific community, that will definitely find in this structured session a suitable occasion for presenting the latest research results in this particular field of acoustics.
Noise from ports activities affects daily life of thousands people living in the Mediterranean area and in particular in the area covered by the EU funding programme INTERREG Maritime Italy-France.
Till now, having no common approach, port noise has been tackled with different approaches obtaining poor results in terms of public health and efficient planning. Projects funded as REPORT, MON ACUMEN and RUMBLE tackles the noise monitoring and planning of commercial ports in the cooperation area, developing
- a common methodology for noise monitoring and acoustic description,
- a comprehensive analysis of all acquired data
- best practices for an efficient action planning according to Directive 2002/49/EC.
The session will host papers describing the results of these projects and others on harbour noise and its mitigation.
The science of acoustics is usually taught using equations, numerical simulations, lectures and reference books. While reading carefully books or articles is a good way for digging into a specific subject, it requires significant time (a matter of days) and should be left to researchers and graduate students with a strong scientific background. In the case of lectures (a matter of hours), the often limited interactions between the speaker and the audience do not appeal to the connected and "high pace information processing" students from generations Y and Z.
The goal of this session is to discuss approaches that help teaching basic and more complex acoustics concepts in a reduced time (possibly a matter of minutes) combining efficiency, interdisciplinarity and interactivity. This includes (1) experimental components and hands-on demonstrations and (2) teaching alternatives like web pages, comics, video games or any other mean.
This session aims at gathering presentations of a variety of innovative programs that demonstrate the many possibilities in curriculum developments for acoustics education when considering all educational levels (K-8, K-12, undergraduate and graduate), various formats and a variety of institutions with partners in the public or private spheres.
Papers presented in this session can focus on theoretical, numerical or experimental analysis frameworks, characterization methods, transducer/sensor technology, or simulation techniques which are relevant for the measurement, analysis, modeling or sound synthesis of vibro-mechanical or vibro-electrical responses of acoustic or electro-acoustic musical instruments.
For many years researchers have been developing tools for measuring and simulating musical instruments. These tools are now mature enough to be transferred to the workshops of instrument makers. The purpose of this session is to make the state of the art of the techniques used or usable in workshops but also to consider new methods and their transferability.
The purpose of this structured session is to report on the latest research and development works carried out in the field of biomechanics and musical acoustics applied to the study of performer-instrument interaction. It therefore concerns the capture, modeling and/or simulation of the musicians' gesture acting on an instrument, as well as the effect of gesture on sound.
This session encompasses theoretical and practical research on the analysis/synthesis of sound production and acoustic behaviour in (or inspired by) musical instruments and the human voice. It may include methods emphasizing computational efficiency, interactivity/control, and/or acoustic accuracy/quality.
This session is concerned with contributions in the area of ground-borne vibration from road and rail traffic. Contributions could deal with measurements, with models for detailed and more global vibration prediction and with validation of numerical models. Models and empirical methods for determination of the excitation mechanisms and propagation models are welcome. Problems related to vibrations in buildings represent also an important environmental issue in network designs, especially for nearby structures in densely populated cities. The session further deals with control measures for vibration problems: their design, performance and validation.
Despite extensive research and development and progress made, noise, vibration and harshness (NVH) problems in vehicles remain and are difficult to solve in many ways. This structured session will examine some of the challenges and latest developments including diagnostics and control strategies in vehicle NVH.