acoustics australia...acoustics australia (2020) 48:1–21 3 acoic aalia vol. 48, no. 1, apil 2020...

Acoustics Australia Vol. 48, No. 1, April 2020

Acoustics AustraliaEditorial BoardEditor-in-Chief: Marion Burgess (Australia)

Assistant Editor-in-Chief: Danielle Moreau (Australia)

Con Doolan (Australia)

Managing Editor: Kathryn Latal (Australia)

Editorial Board: Ross Chapman (Canada)

Densil Cabrera (Australia)

Nicole Kessissoglou (Australia)

Steffen Marburg (Germany)

Jer Ming Chen (Singapore)

George Dodd (New Zealand)

Frits van den Berg (Netherlands)

Acoustics Australia is published by the

Australian Acoustical Society

(A.B.N. 28 000 712 658)

ISSN 0814-6039

Responsibility for the contents of

articles and advertisements rests upon

the contributors and not the Australian

Acoustical Society.

All articles and technical notes (but not

Acoustics Forum and Letters) are sent for

peer review before acceptance. Acoustics

Australia is abstracted and indexed in all

major data bases and has an Impact Factor

of 0.630 (2019).

Acoustics AustraliaThe papers and technical notes are

available from the journal website www.

springer.com/engineering/journal/40857.

All members of the Australian Acoustical

Society have free access to the papers

and technical notes but must log in via the

member area of the AAS website and follow

the link to the journal.

Editorial EnquiriesThe Editor, Acoustics Australia

[email protected]

www.acoustics.asn.au

SubmissionsAll Articleswww.springer.com/engineering/journal/40857

News, New Products and Books for [email protected]

Subscription Enquirieswww.springer.com/engineering/

journal/40857

AdvertisingMrs Leigh Wallbank

Tel (02) 9528 4362

[email protected]

Acoustics Australia

Vol. 48, No. 1 April 2020

ACOUSTICS NEWS AND REGULAR ITEMSEditorials

Abstracts

AAS News

News from the Divisions

Acoustics News

New Products

Future Conferences

Sustaining Members Listing

Diary

GENERAL SUBMISSIONSOriginal PapersMatching Signature Whistles with Photo-Identification of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) in the Fremantle Inner Harbour, Western AustraliaChristine Erbe, Chandra Salgado-Kent, Simone de Winter, Rhianne Ward & Sarah Marley

Research on the Optimization Design of Acoustic Stealth Shape of the Underwater Vehicle Head Bing Li, Zilong Peng, Huabing Wen, Jun Fan, & Hao Song

Personalization of Head-Related Transfer Function Based on Sparse Principle Component Analysis and Sparse Representation of 3D Anthropometric ParametersDongdong Lu, Xiangyang Zeng, Haitao Wang & Xiaochao Guo

Reaction Force and Power Flow Analysis of an Acoustic Metamaterial Beam with Multi-band GapsTing Wang, Xiang Zhu & Qinghua Qin

Absorption Coefficient of a Double-Layer Inhomogeneous Micro-perforated Panel Backed with Multiple Cavity DepthsAli I. Mosa, A. Putra, Al-Ameri Esraa & R. Ramlan

Coefficients of End Correction Depending on Geometric Properties of Micro-perforated PanelWoong-yong Lee & Jae-chul Kim

Comparative Evaluation of Ray Tracing and Diffusion Equation Modeling in Room Acoustics Design of Subway StationsZühre Sü Gül, Erinç Odabas & Mehmet Çalıskan

Distribution optimization for acoustic design of porous layer by the boundary element methodYanming Xu, Wenchang Zhao, Haibo Chen & Leilei Chen

Technical NotesRecording and Analyzing Carriage Noise of various High-Speed Rail Systems Using SmartphonesSaurabh Garg, Kian Meng Lim & Heow Pueh Lee.

Evaluation and Analysis of the Algerian Oases Soundscape: Case of El Kantara and Sidi OkbaTallal Abdel Karim Bouzir, Djihed Berkouk & Noureddine Zemmouri

Investigation of Tool Chatter Features at Higher Metal Removal Rate Using Sound SignalsBhagat Singh, Pankaj Gupta

Acoustics Australia (2020) 48:1-21https://doi.org/10.1007/s40857-020-00187-1 © Australian Acoustical Society 2020

2 Acoustics Australia (2020) 48:1–21


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Acoustics Australia (2020) 48:1–21 3


The AAS aims to promote and advance the science and practice of acoustics in all its branches to the wider community and provide support to acousticians. One of the ways that we do this is through our Research and Education grants. I’d like to congratulate the successful applicants of the 2019 submissions for the Research and Education grants:

• Dr Ben Cazzolato for his successful application for the Research Grant for his proposed study ‘Environmental noise from open cycle gas turbine power stations’.

• Mr Greg Barry for his successful application for the Education Grant for his proposed study ‘Preliminary Exploration of Noise and Student Learning in Modern Flexible Education Spaces’.

I also feel that it is important to recognise the expanding wealth of knowledge within the society, and one of the ways that we expand our knowledge is through our annual conferences. As such, I would like to congratulate Mr Ryan McKay for winning the President’s Prize for the Best Paper at the 2019 AAS Conference at Cape Schanck ‘Experimental investigation of contra-rotating multi-rotor UAV propeller noise’.

I’d also like to congratulate the following members who were appointed as fellows of the AAS at the end of 2019. Fellowship is a recognition of achievement that is achieved by a small portion of the Society membership. It recognises their contribution to the advancement of acoustics in the broadest sense including service to the Society. The recognition of achievement is based solely on high standards of quality and merit:

• Dr Carl Howard (SA Division)

• Dr Warwick Williams (NSW Division)

• Mr Colin Tickell (NSW Division)

The AAS has also recognised that there are some regional areas around Australia where there are a number of AAS members, however due to their location cannot always travel to attend technical meetings. As such, in late 2019 an expression of interest for Regional Representatives was sent out to members that reside in some of these areas, and through this process we would like to formally recognise Jamie Hladky as the Canberra Regional Representative. Through this program the AAS will provide some modest funding for the Regional Representative to facilitate regular meetings in their region. If you are located in the Canberra region, I encourage you to reach out to Jamie. If you are located in a regional area with a number of acousticians and would like to become a Regional Representative for that area, please contact the General Secretary.

The AAS has a new website www.acoustics.org.au. The new

like to acknowledge the work undertaken by our web master, Luke Zoontjens, and our General Secretary, Julie Sobolewski, for their tireless efforts in getting the new website up and running. If you haven’t visited it yet, please do so and while you are there update

Are you on LinkedIn and want to stay abreast of the latest news and activities of the AAS? If so, I encourage you all to follow the

AAS https://www.linkedin.com/company/australian-acoustical-society/

Finally, you should all (hopefully) be aware by now that 2020 is the International Year of Sound (IYS 2020). http://sound2020.org/

“The International Year of Sound is a global initiative to highlight the importance of sound and related sciences and technologies for all in society. The International Year of Sound will consist of coordinated activities on regional, national and international levels. These activities will aim to stimulate the understanding throughout the world of the important role that sound plays in all aspects of our society."

I encourage our members to participate IYS 2020 activities. The activities are up to the individual member societies (i.e. the Australian Acoustical Society), however the activities do not have to be national so each Division could host its own event. Outreach / education activities are encouraged – doing something that involves more than just the usual gathering of acousticians and related professionals. If you have any suggestions for IYS 2020 activities, please reach out to your local state Division.

Simon Moore, President, AAS

Update on IYS 2020 - due to the current crisis worldwide IYS 2020 is being extended into 2021 thus allowing for 2 years of activities. Marion Burgess

FROM THE PRESIDENT



NATIONAL MATTERS* Notification of change of address

* Payment of annual subscription

Julie Sobolewski - General Secretary

Australian Acoustical Society

PO Box 1843 Toowong DC QLD 4066

Tel: (07) 3122 2605

[email protected]

www.acoustics.org.au

AAS MEMBERSHIPFor 2019/20 Financial Year (Inc. GST):

Fellow and Member . . . . . . . . . . . . . . . . . . $160

Graduates . . . . . . . . . . . . . . . . . . . . $122 - $160

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DIVISIONAL MATTERSEnquiries regarding membership and sustaining membership should be directed to

the appropriate State Division Secretary

AAS - NSW DivisionLaura Keen

Tel: (02) 8934 0035

[email protected]

AAS - QLD DivisionRichard Devereux

Tel: (07) 3217 0055

[email protected]

AAS - SA DivisionAdam Cook

Tel: (08) 7100 6400

[email protected]

AAS - VIC DivisionDr Marc Buret

Tel: (03) 8458 2671

[email protected]

AUSTRALIAN ACOUSTICAL SOCIETY ENQUIRIES

AAS–WA DivisionBenjamin Farrell

Tel: (08) 9474 5966

[email protected]

We are indeed living through extraordinary times that have widespread impact on so many aspects of our lives. You will see in this issue that we have added a note to say we take no responsibility for the accuracy of dates for meetings and conferences information. National and international organisations are working incredibly hard to work out the optimum way to arrange for postponed meetings and

cope with cancellation costs and availability of meeting venues. Most organisers are volunteers and also have to cope with changes in their workplaces and home life. The best advice is to keep watch on the websites of any meetings that you were interested in attending. Some are investigating options for virtual components within a meeting - a hybrid version with local participation in person and other joining via the web. While this is a viable option within

international meeting that involves participants in European and Pan American time zones.

In response to the current situation the ICA has agreed that International Year of Sound 2020 be extended into 2021. So, there is more time for groups to plan for outreach events. The students competition deadline has also been extended to the end of year. For updates and inspiration from the events that others have been planning and to access the growing list of free resources check out www.sound2020.org.

The submission of manuscripts to Acoustics Australia continues and this issue has 11 papers on a diverse range of topics with authors from around the world including an underwater acoustics paper from an Australian research team. Looking into the future we are planning for a special issue on topics related to condition monitoring and more information about this will be available soon. We do encourage those working on applied projects to consider writing up a technical note for submission to the journal or if it is more of a discussion then there is the option of a Forum Article which is submitted directly to us and does not go through the formal review process via Springer.

There have been changes among the editing group for Acoustics Australia. Kathryn Latal has now fully taken over the Editorial Assistant role from Truda King. It was planned that Con Doolan would take on the role of Chief Editor in later 2020 but he now has a very onerous role at the University of New South Wales and will continue as Associate Editor. Danielle Moreau has excelled in her work as Associate Editor and the AAS Council has accepted the recommendation that she take on the role as Chief Editor in late 2020.

So, to all our readers, on behalf of the editorial team I wish all the best to you, your families and your colleagues during this challenging time.

Marion Burgess, Editor in Chief

FROM THE CHIEF EDITOR

www.acoustics.org.au



ACOUSTICS AUSTRALIA 48(1), 2020 ABSTRACTS The full papers for these abstracts can be found in the online version of Acoustics Australia.Members of the Australian Acoustical Society should access via the member login of the AAS website. Access for all others is via http://link.springer.com/journal/40857

GENERAL SUBMISSIONSORIGINAL PAPERS

Matching Signature Whistles with Photo-

(Tursiops aduncus) in the Fremantle Inner Harbour, Western AustraliaChristine Erbe1, Chandra Salgado-Kent1,2,3, Simone de Winter1,

Rhianne Ward1 & Sarah Marley4

1. Centre for Marine Science and Technology, Curtin University, Perth,

WA, Australia

2. Centre for Marine Ecosystems Research, Edith Cowan University,

Joondalup, WA, Australia

3. Oceans Blueprint, Coogee, WA, Australia

4. Institute of Marine Sciences, University of Portsmouth, Portsmouth, UK

The Swan–Canning River System is home to an Indo-

currently 17 adult and juvenile individuals. While a complete

repeated boat-based surveys and is thus laborious and expensive. Bottlenose dolphins are known to emit individually distinctive signature whistles, and therefore, passive acoustic monitoring

and photographic data from the Fremantle Inner Harbour were reviewed for instances when dolphin whistles and individual identifying images were simultaneously available. As dolphin whistles are commonly used in social encounters, dolphins producing whistles in this study were always in groups. Consequently, to assess whether distinctive whistles could be attributed to individual dolphins, conditional probabilities

individuals, as well as Bayesian posterior probabilities for

were computed. While a larger sample size is needed to capture

step in developing a passive acoustic program for monitoring this small dolphin community, in order to ultimately inform its conservation management.

Research on the Optimization Design of Acoustic Stealth Shape of the Underwater Vehicle HeadBing Li1 Zilong Peng1, Huabing Wen1, Jun Fan2, & Hao Song3

1. School of Energy and Power Engineering, Jiangsu University of

Science and Technology, Zhenjiang, 212003, People’s Republic of

China

2. Collaborative Innovation Center for Advanced Ship and Deep-Sea

Exploration, State Key Laboratory of Ocean Engineering, Shanghai

Jiao Tong University, Shanghai, 200240, People’s Republic of China

3. Systems Engineering Research Institute, Beijing, 100000, People’s

Republic of China

The acoustic stealth shape design of the underwater vehicle has become a topic of considerable current interest to the experts engaging underwater acoustic countermeasure technology in recent years. During tracking the target, the echo strength of head shape is easily exposed and detected for the underwater vehicle, which directly affects its acoustic stealth performance. This paper proposes an optimal design method for the acoustic stealth shape of the underwater vehicle head with relatively lower target strength (TS), based on the Nelder–Mead optimization

polynomials are used to describe the underwater vehicle head shape deviation, and the optimization objective function is given as the weighting function of the TS of underwater vehicles head with different angles and frequencies. Then, the two optimized results with different situations are given, which are evaluated using the angle detecting rate. Finally, the 2D axisymmetric

used to verify the TS calculation in this paper. The optimization design method may provide guidance for the lower TS shape design of the underwater vehicle, which may realize the automatic design of the lower TS shape with incident plane waves at given angles and given frequency bands.

Personalization of Head-Related Transfer Function Based on Sparse Principle Component Analysis and Sparse Representation of 3D Anthropometric ParametersDongdong Lu1, Xiangyang Zeng1, Haitao Wang1 & Xiaochao Guo2

1. Northwest Polytechnical University, No. 127 Youyixi Road, Beilin

District, Xi’an, 710072, Shaanxi, People’s Republic of China

2. Air Force Medical Center of FMMU, Beijing, 100142, People’s Republic

of China

Personalization of head-related transfer functions (HRTFs) is an essential task in the research on virtual hearing. In this paper, a method based on sparse principal component analysis (SPCA) and sparse representation (SR) was proposed to personalize HRTFs. The fundamental assumption is that an equivalent sparse combination can express the same anthropometric

of three-dimensional anthropometric parameters, and the reduced physiological parameters were used to reconstruct a physiological parameter database. SR was performed on the reconstructed physiological parameters of all subjects. For each subject, SR was used on the anthropometric parameters that were consistent with those in the reconstruction database. The matching pursuit algorithm was used to obtain the subjects in the database that had the same SR as the subject, and the HRTFs of the matched subject were used as the HRTFs of the new subject. The effect of the proposed method was evaluated by spectral distortion. The results showed that the method did better than others regardless of whether the Chinese pilots’ database or the CIPIC database was used, especially in the 0–8 kHz bandwidth.



Reaction Force and Power Flow Analysis of an Acoustic Metamaterial Beam with Multi-band GapsTing Wang1, Xiang Zhu1 & Qinghua Qin2

1. School of Naval Architecture and Ocean Engineering, Huazhong

University of Science and Technology, Wuhan, 430074, People’s

Republic of China

2. College of Engineering and Computer Science, The Australian

National University, Canberra, ACT, 2600, Australia

A model of a novel metamaterial beam with periodically attached spring–mass combinations is presented. Dispersion

gap generation and wave attenuation mechanism. Results show that multiple large low-frequency band gaps are generated and can be overlapped to form a broad gap with reasonable damping. Reaction force analysis and energy distribution reveal the actual wave attenuation working mechanism of multiple translational absorbers on the beam: some of the resonators create negative inertia, 180° out of phase with the host beam, to counterbalance the positive inertia of some resonators in phase with the host

different combinations of the resonance open different band gaps.

in practical engineering when the metamaterial beam is applied.

Inhomogeneous Micro-perforated Panel Backed with Multiple Cavity DepthsAli I. Mosa1,2, A. Putra1, Al-Ameri Esraa1 & R. Ramlan3

1. Fakulti Kejuruteraan Mekanikal, Universiti Teknikal Malaysia Melaka,

Hang Tuah Jaya, 76100, Durian Tunggal, Melaka, Malaysia

2. Mechanical Engineering Department, College of Engineering,

University of Baghdad, Jadriyah, Baghdad, Iraq

3. Centre for Advanced Research On Energy, Universiti Teknikal

Malaysia Melaka, Hang Tuah Jaya, 76100, Durian Tunggal, Melaka,

Malaysia

Double-layer micro-perforated panels (MPPs) have been studied extensively as sound absorption systems to increase the absorption performance of single-layer MPPs. However, existing proposed models indicate that there is still room for improvement regarding the frequency bands of absorption for the double-layer MPP. This study presents a double-layer MPP formed with two single MPPs with inhomogeneous perforation backed by multiple cavities of varying depths. The theoretical formulation is developed using the electrical equivalent circuit

incident sound. The simulation results show that the proposed

bandwidth compared with the conventional double- and even triple-layer MPPs. The bandwidth can be increased to higher frequency by decreasing the cavity depth behind a sub-MPP with small hole diameter and a high perforation ratio, and to lower frequency by increasing the cavity depth behind a sub-MPP with large hole diameter and a small perforation ratio. The experimental data, measured by impedance tube, are in good agreement with the predicted results.

Geometric Properties of Micro-perforated PanelWoong-yong Lee1 & Jae-chul Kim2

1. University of Science and Technology, 217 Gajeong-ro, Yuseong-

gu, Daejeon, 34113, South Korea

2. Transportation Environmental Research Team, Korea Railroad

Research Institute, 176, Cheldobangmulgwan-ro, Uiwang-si,

Gyeonggi-do, 16105, South Korea

The purpose of this paper is to calculate an accurate

calculated, there is a difference between the measurement and the calculation. In the calculation, a resistive end correction

and increases when the hole diameter and the porosity decrease and the panel thickness increases. The reactive end correction

and the panel thickness increase and the porosity decreases.

formulas expressed by the hole diameter (d), the hole spacing (b), the porosity (p) and the panel thickness (t). To verify the

mass inside the hole and the added air mass outside the hole.

ratio of the panel thickness (t) to the hole diameter (d). In a single-layer MPPA, when t/d is greater than or equal to about

applied, is similar to the measurement. On the other hand, when

layer MPPAs are compared according to the proposed formulas

proposed formulas among calculations is in good agreement with the measurement.

Comparative Evaluation of Ray Tracing and Diffusion Equation Modeling in Room Acoustics Design of Subway StationsZühre Sü Gül1, Erinç Odabas2 & Mehmet Çalıskan2

1. Department of Architecture, Bilkent University, 06800, Ankara,

Turkey

2. MEZZO Stüdyo Ltd, 34726, Istanbul, Turkey

Due to their disproportionate geometries and uneven

necessitates reliable tools for real-case design applications, while the research and discussions on the topic are still ongoing. This study compares two major room acoustics simulation approaches, namely ray tracing and diffusion equation modeling (DEM) in order to assist future acoustical designs of subway stations. Two cases of Istanbul Metropolitan metro lines are selected, namely station BAG with a circular cross section and



station USK with rectangular cross section. The reverberation

compared with those obtained by the ray tracing and DEM. The results emphasized the validity as well as limitations of each method over discussed metrics with given geometric layouts and material characteristics of the subway stations.

Distribution optimization for acoustic design of porous layer by the boundary element methodYanming Xu1, Wenchang Zhao1, Haibo Chen1 & Leilei Chen2

1. CAS Key Laboratory of Mechanical Behavior and Design of

Materials, Department of Modern Mechanics, University of Science

and Technology of China, Hefei, 230026, Anhui, People’s Republic

of China

2. College of Architecture and Civil Engineering, Xinyang Normal

University, Xinyang, 464000, Henan, People’s Republic of China

In this work, we develop an optimization approach to optimize the distribution of porous material layer inside cavity. The optimization seeks to improve the absorbing effects of the porous material, decreasing the noise level at regions of interest or increasing the sound energy dissipated by the porous material. To achieve the preset optimization aim, two different objective

characteristics of porous materials are numerically described using the Delany–Bazley–Miki empirical model and modeled by the admittance boundary conditions in the boundary element analysis. Based on the solid isotropic material with penalization method, an admittance interpolation scheme is established

This transforms the discrete optimization into a continuous optimization problem, which can be solved by a gradient solver with the sensitivity information. As a key treatment in this study, we develop a fast sensitivity analysis approach based on an adjoint variable method and the fast multipole method to calculate the sensitivities of the objective function with respect to a large number of design variables. Finally, we validate the proposed optimization approach through a cabin example.

TECHNICAL NOTES

Recording and Analyzing Carriage Noise of various High-Speed Rail Systems Using SmartphonesSaurabh Garg, Kian Meng Lim & Heow Pueh Lee.

Department of Mechanical Engineering, National University of

Singapore, Singapore, Singapore

The interior noise in train carriages has become an important design parameter for passenger comfort with the proliferation of high-speed rail systems around the world, because passengers spend a few hours on these trains for traveling between cities spanning more than 1000km apart. However, there are limited reported studies on comparing the carriage noise for different high-speed rail systems. In this study, the carriage noise of three high-speed (top speed between 200 and 300km/h) and four express rail systems (top speed between 100 and 200km/h) was recorded with an Android smartphone running Noise Explorer (an app we have developed for measuring noise) and analyzed on PC to benchmark differences among high-speed and express trains. The advantage of using a smartphone for measurements

is to leverage citizen scientists for large-scale-simultaneous measurements. The results show that the average carriage noise

exposure. The average carriage noise level in dBC was found to be much higher than the corresponding average carriage noise

content in the carriage noise. Finally, the carriage noise for a train in a tunnel was found to be higher than the same train on an

Evaluation and Analysis of the Algerian Oases Soundscape: Case of El Kantara and Sidi OkbaTallal Abdel Karim Bouzir1, Djihed Berkouk2 & Noureddine Zemmouri2

1. Institute of Architecture and Urban Planning, Blida University,

Blida, Algeria

2. Department of Architecture, Biskra University, Biskra, Algeria

The present research focuses on the soundscapes of two localities representative of the oasis cities of southeast Algeria,

In this paper, the method of sound walks has been used in order to record the sound experience of city dwellers in pre-selected routes. The processing of these sound recordings with the S_TOOLS-STx software shows the diversity and the denaturation of the soundscapes in these two localities. The current nature of sounds and the exposure levels, especially in new urban centers, and the extinction of these oases could have a negative impact on the general comfort and health of the inhabitants and on the sensitive natural biodiversity of these fragile human settlements, increasing the risk of the syndrome of sick cities.

Investigation of Tool Chatter Features at Higher Metal Removal Rate Using Sound SignalsBhagat Singh, Pankaj Gupta

Jaypee University of Engineering and Technology, Guna, M.P., India

Chatter-free turning has been a matter of concern for engineers. Improper selection of cutting parameters leads to regenerative chatter and loss of productivity. In the present work, a methodology has been proposed to select an appropriate combination of input cutting parameters for stable turning with improved metal removal rate (MRR). Chatter signals generated during the turning of Al 6061 are acquired using a microphone and processed using local mean decomposition signal processing technique. Thereafter, these decomposed signals have been analyzed in order to extract tool chatter features. Prediction models of chatter indices and MRR have been developed using response surface methodology. Moreover, these prediction models have been optimized using multi-objective genetic algorithm for ascertaining the optimal range of cutting parameters for stable turning with higher MRR. Finally, obtained stable range has been validated by performing more experiments.



NEWS FROM THE DIVISIONS

From the General SecretaryThe AAS has started an exciting year. Many changes are afoot as we move into the roaring 20’s.

By the time you read this the new website will be complete and ready for members to access. The new website offers a lot more functionality and facilities for everyone involved with the AAS. There have been many hours poured into the creation of this platform and the AAS hopes that members will embrace the new site and enjoy all that it affords.

Membership numbers have increased since my last report and the AAS currently has 708 members. Applications are being received weekly, and as a result of a more streamlined approvals process, new approvals also occur weekly.

The AAS as a Company continues to operate as efficiently as possible. The AAS Federal Council is now meeting quarterly in an effort to remain current and operate more effectively. This ensures all Divisions have greater opportunity to table matters to the Federal Council. This also ensures regular monitoring of Division activities and simplifies the process of compliance with relevant regulatory authorities.

Negotiations with Standards Australia are underway to provide access to relevant acoustic Standards for members. Discussions will take place at the next quarterly Federal Council meeting with regard to this.

The successful applicants for Research and Education Grants have been determined. Ten applications were received for the 2019 Research Grant. All applications were of a very high standard and offered interesting choices for the Grant Committee. The successful application for the 2019 Research Grant was “Environmental noise from open cycle gas turbine power stations.” by Dr Benjamin Cazzolato. The AAS Research Grant Committee along with the AAS Federal Council believe that this research will provide valuable information to AAS members and the wider acoustics community. The successful application for the 2019 Education Grant was “Preliminary exploration of noise and student learning in modern flexible education spaces.’ by Mr Greg Barry. This study will continue research in this important field and will build upon the findings of the 2018 Education Grant. A number of AAS members have expressed interested in this proposed research by Mr Barry and it is heartening to see members advancing the objectives of the society via collaboration. Applications for the 2020 Research and Education Grants are open

Finally, International Noise Awareness Day is on April 29th. Noise is an intrinsic and valuable part of our environment. Noise, in its many forms, should be celebrated as without it, acoustics would not exist nor would acousticians. International Noise Awareness Day in 2020 may well be the least noisy day we have ever experienced so enjoy some music, have a great conversation and virtually hug an acoustician!

Julie Sobolewski, General Secretary

Continuing Professional Development (CPD) ProposalAs presented and discussed at the 2019 AGM in Cape Schanck in November, the AAS is proposing to introduce a Continuing Professional Development (CPD) program.

The program would be implemented to ensure AAS members with Member (MAAS) membership status complete a satisfactory level of CPD in order to maintain their membership status. It is felt that the implementation of such a program is supported by Code of Ethics requirements, as well as improving the relevance of the AAS to industry and governments. A CPD program would also align the AAS with similar societies and make it easier for the public to find AAS members who are actively partaking in CPD.

The CPD program as proposed would only affect MAAS members, and it is proposed that it be mostly based on self-assessment and reporting.

A proposed time lime was presented to the AGM with a view to implementation of an approved process likely from July 2021 (beginning of FY2022) and feedback and review following on from that.

An Informal motion was put forward that the AAS undertakes further development of the CPD proposal via professional legal advice at reasonable market rates and relevant approvals from the membership prior to full implementation.

NSW DivisionIn December the NSW Division hosted its Xmas Breakfast talk which has become a very successful event. This year’s topic was My Mathematical Journey Through Music presented by Dr Andrew Milne from Western Sydney Uni. He took us through an analysis of the “balance" and “evenness" of musical rhythms and their relevance to algorithmic music and to perception through to a multilevel Bayesian regression while narrating one of the more interesting field trips ever undertaken in acoustics, in the most remote areas of New Guinea.

In late February the Division again hosted a delegation from the Acoustical Society of America who were checking on the progress for the Joint 2021 meeting with the AAS. As part of this visit, there were tours of some of Sydney's leading acoustics facilities including the Hearing Hub at Macquarie Uni and a visit to UTS Tech Lab at Botany. During the Botany visit we also hosted a presentation on the noise and vibration issues that have been involved in the construction of the Sydney Metro rail line.

Angus Leslie

WA DivisionWith increased residential development around the Northbridge district and Perth CBD, entertainment noise issues have been the subject of recent media coverage in Western Australia. The WA state government recently published for public comment two documents on future entertainment noise policy, being

• The Western Australian Planning Commission’s Draft Position Statement: Special Entertainment Precincts (DPLH/WAPC) https://www.dplh.wa.gov.au/special-entertainment-precincts;

• Options for proposed amendments to the state noise policy (WA Environmental Protection (Noise) Regulations 1997) for



Managing amplified music noise in entertainment precincts by the Department of Water and Environment Regulation(DWER) https://consult.dwer.wa.gov.au/legislation-and-national-policy/seps/.

The City of Perth also appears to have a similar policy in development, but that is likely to be delayed until after DWER’s decisions on any changes to state noise policy. WA members are encouraged to provide comment on the City of Perth policy if and when it is released.

Following seven years of service, Dr Luke Zoontjens has stepped down as Chair of the WA Division to focus on Federal programs including updates to the Articles of Association and the new website. Luke will still remain on the WA Committee and Federal Council acting as the Registrar for both. The committee of the WA Division would like to thank Luke for his tireless service as Chair, especially the countless hours he spent organising the AAS conference in 2017. Luke’s dedication to the society has been invaluable.

Dr Iain Parnum is the new WA Chair. He is a Senior Research Fellow at the Centre for Marine Science and Technology at Curtin University

Acoustics. Shane Chambers has also taken roles on the committee in regard to convening technical meetings and the Vice-Chair role.

Benjamin Farrell

Vic DivisionAcoustics 2019, Cape Schanck, Victoria, 10-13 Nov 2019The annual conference of the Australian Acoustical Society, Acoustics 2019, Sound decisions: moving forwards with acoustics, was held in Cape Schanck, Victoria, from the 10th to the 13th of November 2019. Despite the weather challenging the enjoyment of the impressive settings at the southern tip of the Mornington Peninsula, the conference

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A S SOC I AT E S&

was a success. Over 200 delegates attended the conference, including not only participants from the Australian states and territories, but also overseas visitors, from countries including China, Italy, the Netherlands, New Zealand, the United Kingdom and the USA. A total of 77 papers were presented during the two plenary sessions, the four keynote lectures and the 18 topical sessions, and 31 exhibitors presented their latest products and developments.

Key highlights included the plenary sessions by Dr Irene van Kamp, from RIVM, the Dutch national institute for public health and the environment, and by Professor Jian Kang from University College, London, UK. Irene van Kamp presented on the development of the 2018 World Health Organisation environmental noise guidelines for Europe, and their implication for research and policy, and the development of additional evidence reviews and guidance on conducting health impact assessments. Jian Kang gave a comprehensive presentation of the state of the art in understanding and evaluating soundscapes and their integration in pro-active planning and urban design strategies.

Other highlights included the presentation by Ryan McKay, from the Department of Mechanical Engineering at the University of Auckland, New Zealand, of a paper entitled ‘Experimental investigation of contra-rotating multi-rotor UAV (unmanned aerial vehicle) propeller noise’ that received the conference best paper award. The grade of Fellow of the Acoustical Society of Australia was awarded to Colin Tickell in recognition of his outstanding contribution to Standards Australia acoustics activities and the society .

The Victoria division would like to thank all delegates who attended the conference, and in particular the authors, the sponsors and exhibitors and all those involved in the organisation of the conference. The proceedings of the conference are available on the website of the society.

Marc Buret



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AAAC (The Association for Australasian Acoustical Consultants)

The AAAC had our AGM in November in Portsea, prior to Acoustics 2019. There was plenty of time for information sharing and group discussion with the aim of raising standards throughout the industry. Member company, Marshall Day Acoustics, Melbourne, was awarded the Hugh Taylor Vivian Award at the meeting.

Marshall Day Acoustics, Melbourne, receiving the Hugh Taylor Vivian Award at AGM

Attentive group during the AAAC AGM

We gained great feedback from members following the AGM, below are a few of the comments received.Andrew Mitchell from Cogent Acoustics said, “The workshop that was facilitated by Beaton was informative and a great refresher on easy things we should be doing to maintain great client relationships.” Andrew Lloyd from Octave Acoustics commented how interesting the round table discussions were. He said “We discussed how we can use the AAAC to differentiate ourselves as an industry from non-AAAC aligned firms. He also commented “One of the key takeaways for me is that as AAAC members we should aim to integrate a standardised section into our fee proposals which explains the role of the AAAC to our clients and encourages them to use of an AAAC member firm. Andrew added “It was also great to meet up with other like-minded people within the industry and hear what opportunities and challenges they have been facing.”

AAAC crowdfunding campaignIn July 2019 the AAAC launched a successful crowdfunding campaign called ‘Designing workplaces that work’ to fund a ground-breaking research project aimed at transforming the way we think about workplace acoustic design in relation to the impact on productivity and wellbeing of employees.

The research project kicked off in January 2020 in new labs at Bond University with first studies examining the effects of different environments and design on cognition, emotions, relational behaviour and performance in both workplace and education settings led by Dr Libby Sander.

As a result of the fundraising there were six organisations who

grant funding). This will hopefully be leveraged with other grants and in-kind contribution from Bond University to further multiply the research outcomes

The organisations who contributed were:-

*Platinum: Poly (Habitat Soundscaping)

*Silver: Instyle, Resonate Consultants

GuidelinesOne aspect of the AAAC’s work is to provide Guidelines to government, industry and acoustical consultants indicating best practice. Here’s a list of Guidelines which are available to download:

Released Guidelines

• AAAC Guideline for Apartment and Townhouse Acoustic Rating

• AAAC Guideline for Child Care Centre Acoustic Assessment

• AAAC Guideline for Report Writing

• AAAC Guideline for Selection of an Acoustical Consultant

• AAAC Guideline for Commercial Building Acoustics

• AAAC Guideline for Educational Facilities Acoustics

• AAAC Guideline for Health Care Building Acoustics

• AAAC Licensed Premises Guideline

Draft Guidelines (not released)

• AAAC Guideline for Measurement and Assessment of Acoustics

• AAAC Guideline for Patron Noise

• AAAC Guideline for Impact Noise (in-situ)

To download our Guidelines or enquire about membership go to www.aaac.org.au. To join the conversation and get interesting industry information follow the AAAC LinkedIn Page, which now has over 800 members.

Richard Haydon

ACOUSTICS NEWS



BN

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The new green man’s mouth simulator is an ideal sound source to research, develop and evaluate microphones; and the realistic representation of the human ear optimizes acoustic impedance and delivers accurate electro-acoustic measurements, for perfect sound performance in all your devices.



Australian Hearing HubThe Australian Hearing Hub is a pioneering collection of Australia’s leading hearing organisations and opened at Macquarie University in 2013. Seven years on, Professor David McAlpine, ARC Laureate Fellow in the Department of Linguistics and the Hub’s Director of Hearing Research talks about how co-location has turned into a powerful and unified alliance improving the lives of people with hearing and language disorders around the world.For more information:- http://hearinghub.edu.au/

World Hearing Day 2020 Celebration with Professor Graeme Clark and Brett LeeProfessor Graeme Clark, inventor of the multi-channel cochlear implant, and Brett Lee, former Australian cricketer and Cochlear ambassador, met for the first time in February to celebrate International Cochlear Implant Day and World Hearing Day 2020.http://hearinghub.edu.au/about-us/news/world-hearing-day-2020-celebration-with-graeme-clark-and-brett-lee/

Inclusive Junior Science AcademyThe inclusive academy is a collaborative effort between the Macquarie-based Junior Science Academy, the Australian Hearing Hub and Parents of Deaf Children. It gives deaf and hard of hearing children the chance to meet other children who live with hearing loss.https://lighthouse.mq.edu.au/article/march/Camp-gives-deaf-children-a-rare-opportunity-to-be-together

Why do so few people get help for hearing difficulties?Hearing problems are common and yet many Australians are failing to take up life-changing hearing aids and cochlear implants. Macquarie researchers set out to discover why.https://lighthouse.mq.edu.au/article/march/Why-do-so-few-people-get-help-for-hearing-difficulties

‘FrogPhone’ Provides New Platform for Environmental Studies.The ‘Frog phone’ is a new device which allows scientists to call up a frog survey site and monitor its inhabitants. Frog habitats are monitored for a number of reasons which include that the presence (or absence) of frogs is widely recognised as an indicator of environmental health. The new device, once installed at a site, will make data gathering easier, quicker and with less impact to the environment.For more information:-https://www.unsw.adfa.edu.au/%E2%80%98frogphone%E2%80%99-provides-new-platform-environmental-studies

How Your Brain Disentangles Words and Melody from a Single Line of SongThe mystery of how our brain processes speech and music when listening to songs was the subject of a recent study. This ABC news article discusses the research conducted by Phillipe Albouy and others from the Universite Laval in Quebec, Canada. The article talks about the findings of their research and includes comments from a number of Australian researchers.For more information:-https://www.abc.net.au/news/science/2020-02-28/how-our-brain-can-hear-both-melody-and-words-in-a-song/12003378

Underwater Loudspeakers Could Save the Barrier ReefResearchers have recently undertaken an experiment and determined that playback of healthy reef sounds on underwater speakers has a positive influence in attracting fish population to degraded reef habitats.For more information:-https://www.inavateonthenet.net/news/article/underwater-loudspeakers-could-save-the-barrier-reef

50 Years of Wavebar® in Australia

old in 2020. Pyrotek is celebrating half a century of manufacture and supply to the global building, transport and marine industries.

noise transfer to provide our customers with comfort, confidentiality and privacy. Pyrotek’s strong R&D team and extensive data analysis, has allowed Wavebar® to evolve with the industry requirements of global customers.

“Fifty years of manufacturing is an incredible milestone and one that we are extremely proud of. Wavebar® has experienced exceptional growth to be today’s market leader and a key contributor to the global success of Pyrotek. Our team of skilled engineers and scientists bring a wealth of knowledge and experience to satisfy the requirements of our customers with the highest quality mass loaded vinyl. We are established in developing the latest noise control solutions to keep ahead of the market needs.” George Tsitos (Global Business Manager – Noise Control).

Microphone HandbookPCB Piezotronics, Inc. has developed a new microphone handbook for use by intermediate level acoustic engineers. The PCB team of acoustic experts and mechanical, industrial, and electrical engineers

manufacturing experience in the new microphone handbook. Sample topics include:• Sensor selection, including prepolarized (0V) and traditional externally polarized (200V) designs• Detailed comparison of in-the-field versus factory calibrations • Proper handling and maintenance tips for test and measurement microphones• Information on the most common industry standards To download the handbook: https://gallery.freshmarketer.com/

Should you require additional information, please contact John Morris Group at [email protected]



NEW PRODUCTS

BRUEL and KJAERPredictor-LimA v2020 We are excited to announce that a new version of Predictor-LimA, the market’s most powerful and intuitive software for environmental noise calculation, has been released and is now available. The Predictor-LimA Software Suite, Type 7810 bundles the intuitive PredictorTM and the flexible LimATM into one powerful, integrated package that allows quick and easy environmental noise calculation and analysis.Below is a summary of the changes in Predictor-LimA v2020: •

quality assurance standard for CNOSSOS-EU. • Predictor-LimA is the first software to state documented

implementations of the CNOSSOS-EU method. • Enhanced usability and user experience with additional data

input, modelling and reporting options. You can find more details about the new software version here.

New NVH Simulator 2019.1 The new version 2019.1 brings a greatly expanded ability to model electric and hybrid vehicles, along with over 200 other improvements and enhancements. Dave Bogema, Product Manager with Brüel & Kjær explains, “One of the challenges associated with electric vehicle sound is the

BRÜEL & KJÆR CALIBRATION SERVICES GLOBAL EXCELLENCE, LOCAL EXPERTISEThanks to factory-trained service engineers, multiple up-to-date factory calibration systems and over 40 years of experience serving Australian customers, Bruel & Kjaer service is the partner of choice for many National and International businesses.

Bruel & Kjaer Service provides full service, support and calibration for the complete range of Brüel & Kjær Sound & Vibration solutions including LDS vibration test systems.

Accredited calibration to the latest standards of:

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phenomena of non-zero-crossing and “negative” orders. These arise from the operation of the power electronics controlling the motor. Typically, this manifests as tonal harmonics increasing and decreasing in frequency simultaneously, centred around a higher frequency tone. These harmonics have been difficult or impossible to extract from a measurement.”With the 2019.1 release, not only can these tonal harmonics be extracted from a measurement, but they can also be resynthesized in real-time driver-in-the-loop simulations using the NVH Simulator softwareThe NVH Simulator software enables automakers to create and evaluate virtual NVH prototypes, saving millions of euros on every vehicle programme and shaving months off development time.

New Tabletop HATS Type 5128-B This new HATS is applicable for speech and sound testing where space is limited. Building on the success of High-frequency Head

tabletop version has been developed to support customers looking to test headphones right on their desk or in small anechoic chambers.

on a foot. Its adjustable neck makes it suitable for testing all types of headphones, and it can be used free standing on a desk, fitted on a tripod or on a turntable using a tripod mounting adapter. The

just the tabletop support foot to add new versatility to their HATS investment.More information: www.bksv.com/en/products



FUTURE CONFERENCES

Editorial Note Under the extraordinary world we are living in at the time this goes to press there is great uncertainty regarding future meetings nationally and internationally. Some meeting organisers have bravely advised postponed dates, others scheduled for later in the year are yet to confirm if the meeting will go ahead. Acoustics Australia take no responsibility for the accuracy of the listings below and recommends that you seek the latest details from the news flashes on the respective web pages.

Forum Acusticum - LyonPostponed to December 2020

The European Acoustical Association together with the French Acoustical Society is pleased to invite you to the 9th Forum Acusticum to be held in world heritage city of Lyon-France

of Acoustics, from physical acoustics to sound perception (of humans and animals), including industrial applications of acoustics. More than 100 structured sessions will be organized to provide a comprehensive technical program. This will be accompanied by a social program including the opportunity for a dinner in the historical mansion of Bocuse family by the river Saône, called the Abbaye.

https://fa2020.universite-lyon.fr/

QUIET DRONES - Paris

Postponed to OCTOBER 2020This symposium on Noise of UAV and UAS is being held in Central Paris on Tuesday 26th and Wednesday 27th May 2020 and is organised by INCE/Europe in association with CidB. Enormous progress has been made on drone technologies in the last decade and the number of drones is increasing dramatically and is now much higher than the number of conventional aircraft. Safety, security and privacy have controlled the development of drones up to now, but noise is now an issue in residential areas and environmentally sensitive areas such National Parks. On the other hand, ultra-silent machines represent a problem for privacy and security. The Symposium will provide a venue for researchers on drone noise to meet with manufacturers, users and those engaged in designing innovative applications for this new technology.https://www.quietdrones.org

ICBEN 2020 - Stockholm

Postponed to June 2021 The 13th ICBEN Congress on Noise as a Public Health

Nordic summer in Stockholm, Sweden. The congress will take place on the Solna campus of the Karolinska Institute and is open to all interested scientists, researchers, and policymakers alike.ICBEN 2020 welcomes contributions from on: Noise-induced hearing loss, Noise and communication, Non-auditory health effects of noise, Effects of noise on cognition, performance and behavior, Effects of noise on sleep, Community response to noise and noise annoyance, Noise policy and economics, Noise exposure https://www.icben2020.se/

ICSV27 - PraguePostponed to July 2021

The International Institute of Acoustics and Vibration (IIAV), the Czech Acoustical Society and the Czech Society for Mechanics are pleased to invite scientists and engineers from all over the world to attend the 27th International Congress on Sound and Vibration (ICSV27) to be held in Prague 12–16 July 2020.

This annual IIAV congress is a leading event in the area of acoustics and vibration and provides an important opportunity for scientists and engineers to share their latest research results and exchange ideas on theories, technologies and applications in these fields. The congress will be held at Hilton Prague Hotel and feature a broad range of high-level technical papers from around the world: distinguished plenary lecturers will describe recent developments in a number of sound and vibration topics and discuss future trends.

Prague is an exciting, vibrating and welcoming destination. It's a city where delegates can enjoy a rich diversity of culture, museums, art galleries, night-life, gastronomy, shopping and sport. Cosmopolitan Prague offers something to suit every delegate!

www.icsv27.org



INTER-NOISE 2020 - Seoul

Control Engineering will be held in Seoul, Korea, 23-26 August 2020. The Congress is hosted by the Korean Society for Noise and Vibration Engineering (KSNVE) on behalf of the International Institute of Noise Control Engineering (I-INCE). The theme of the Congress is ‘Advances in Noise and Vibration Control Technology’, and it will be held in COEX Convention Center, Seoul, Korea.

INTER-NOISE 2020 will provide the best opportunity for engineers and scientists in all fields of acoustics to learn about and share their work with colleagues from around the world. Two plenary lectures, three keynote lectures and more than a hundred technical sessions will be organized for the exchanging of views and sharing of experiences. We believe that this congress will be an invaluable experience for all participants and a great opportunity to create new memories with the Inter-Noise family in the beautiful city of Seoul.

http://internoise2020.org

ISMA 2020 - Leuven

The 2020 Leuven Conference on Noise and Vibration Engineering, ISMA 2020, will be held 7 to 9 September in Leuven, Belgium. It is the 29th international conference in a series of annual courses and biennial conferences on structural dynamics, modal testing and noise and vibration engineering, organised by the Department of Mechanical Engineering of the KU Leuven. This year's edition will be organised in conjunction with the 8th edition of the International Conference on Uncertainty in Structural Dynamics - USD2020. A single registration will grant access to both conferences.

The conference provides a forum for engineers, researchers and other professionals active in the field of modelling, analysing, testing and improving the noise and vibration characteristics of mechanical systems and civil structures. The conference combines expertise in the noise and vibration fields by stressing common measurement, modelling, analysis and control technologies. The meeting will provide a further impetus to the cross fertilization of ideas in both areas.

www.isma-isaac.be/isma2020/

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A&V 2020 Bali, Indonesia

The 1st Biennial International Conference on Acoustics and Vibration (A&V) 2020 is being held in Bali, Indonesia from

The 1st Biennial International Conference on Acoustics and Vibration (A&V) 2020 is the International Conference on Acoustics, Vibration, and its Application, which will firstly be held by The Department of Engineering Physics, Institut Teknologi Sepuluh Nopember, Indonesia. The idea to hold the conference is to bring together students, scientists, and engineers that involved in research and development of technologies related to Acoustic, Vibration, And Its Applications, which come from different backgrounds and experiences.

This event will provide opportunity to participants to disseminate their recent original research findings, discussing current issues, and exchange of ideas related to acoustic and vibration technologies. It is also hoped to promote transfer of R & D outcomes into applications that match with industrial and societal needs nationwide, as well as for the ASEAN regions, which will eventually strengthen the collaboration and boosting the economic growth through strong partnerships among academician, researcher, industries, and government supports.

https://anv2020.com/conference/

NOVEM 2021

We are delighted to invite you to NOVEM 2021, Noise and Vibration: Emerging Methods. This conference, the 7th in the series, will be a major gathering of researchers working in the areas of noise and vibration.

NOVEM 2021 will be held 26-28 January 2021 in the beautiful city of Auckland, New Zealand. The emphasis of the conference is on new and emerging methods, techniques and technologies in acoustics and vibration. As with previous NOVEMs, the conference will focus on specially selected thematic Keynote Forums, which bring together key specialists and represent many of today’s major scientific challenges related to noise and vibration.

https://www.novem2021.ac.nz/

Acoustics 2020, Wellington

The Acoustical Society of New Zealand (ASNZ) and Australian Acoustical Society (AAS) Joint Conference will be held at Te Papa Tongarewa Museum in Wellington New Zealand, from

Acoustics 2020 will provide engineers and scientists in all fields of acoustics the chance to share their work with colleagues. Six plenary/keynote lectures, a full and interesting programme covering a wide range of topics, and some excellent social functions, will give attendees the opportunity to exchange views and share experiences. There will also be a unique opportunity for manufacturers and suppliers to showcase the latest developments in acoustic instrumentation, software and noise and vibration control products.

Surrounded by nature and fuelled by creative energy, Wellington is a compact city with a powerful mix of culture, history, nature and cuisine. Fuel your visit with strong coffee and world-class craft beer – Wellingtonians are masters of casual dining, with plenty of great restaurants, night markets and food trucks.

On the waterfront itself you’ll find Te Papa Tongarewa Museum, New Zealand’s national museum. Te Papa, as it’s colloquially known, means ‘our place’ and is one of the best interactive museums in the world. It is an iconic New Zealand building, right in the heart of the capital city. It is easily accessible by international and domestic flights into Wellington airport,

The Acoustics 2020 Organising Committee looks forward to welcoming you to Wellington in November. We hope that the conference gives you an opportunity to strengthen your existing networks and that you leave with great memories, fresh ideas, and new friendships. Please check the conference website for abstract submission information, online registration and to keep up to date with the latest conference information.

www.acoustics2020.com



Acoustics 2021 - Sydney

The Acoustical Society of America (ASA) and the Australian Acoustical Society (AAS) are joining together to co-host Acoustics 2021, Sydney, which will also incorporate the Western Pacific Acoustics Conference (WESPAC) and the Pacific Rim Underwater Acoustics Conference (PRUAC).

The conference will be held at the International Convention Centre, Darling Harbour, Sydney. This Convention Centre has been completely rebuilt and opened in late 2017, so it features state of the art facilities along with the magnificent views of Sydney. Register your interest now and plan for your participation.

More information:

[email protected]

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The following are Sustaining Members of the Australian Acoustical Society. Full contact details are available from http://www.acoustics.asn.au/sql/sustaining.php

SUSTAINING MEMBERS

3M AUSTRALIA www.3m.com

ACOUSTIC RESEARCH LABS www.acousticresearch.com.au

ACOUSTICA www.acoustica.com.au

ACRAN www.acran.com.au

ACU-VIB ELECTRONICS www.acu-vib.com.au

ADAMSSON ENGINEERING www.adamsson.com.au

AERISON PTY LTD www.aerison.com

ARMSTRONG WORLD INDUSTRIES www.armstrongceilings.com.au

ASSOCIATION OF AUSTRALIAN ACOUSTICAL CONSULTANTS

www.aaac.org.au

BORAL PLASTERBOARD www.boral.com.au/plasterboard

BRUEL & KJAER AUSTRALIA www.bksv.com.au

C-MAC INDUSTRIES www.cmac.com.au

CSR BRADFORD INSULATION www.bradfordinsulation.com.au

DYNAMIC COMPOSITE TECHNOLOGIES www.dctech.com.au

EMBELTON www.vibrationisolation.com.au

EMS BRUEL & KJAER www.emsbk.com

FLETCHER INSULATION PTY LTD www.insulation.com.au

KNAUF AMF AUSTRALIA PTY. LTD. www.knaufamf.com.au

MASON MERCER AUSTRALIA www.masonmercer.com.au

NSW ENVIRONMENT PROTECTION AUTHORITY

www.epa.nsw.gov.au

PYROTEK NOISE CONTROL www.pyroteknc.com

REGUPOL (AUSTRALIA) PTY LTD www.regupol-vibration-technology.com.au

SOUNDBLOCK® SOLUTIONS www.soundblock.com.au

THE P.A. PEOPLE PTY LTD www.papeople.com.au

VIBRATION SOLUTIONS https://vibrationsolutions.com.au/

VIPAC ENGINEERS AND SCIENTISTS www.vipac.com.au



DIARY

2020

Editorial Note - Under the extraordinary world we are living in at the time this goes to press there is great uncertainty regarding future meetings nationally and internationally. Some meeting organisers have bravely advised postponed dates, others

will go ahead. Acoustics Australia take no responsibility for the accuracy of the listings below and recommends that you

web pages.

20-24 April, Lyon, France Postponed to Dec 2020Forum Acusticum 2020fa2020.universite-lyon.fr

11-15 May, Chicago, Illinois Postponed to Dec 2020179th Meeting of the Acoustical Society of Americawww.acousticalsociety.org

26-27 May, Paris, France Postponed to Oct 2020Quiet Droneshttps://www.quietdrones.org

15-18 June, Stockholm, Sweden Postponed to June 202113th ICBEN Congress on Noise as a Public Health Problemhttps://www.icben2020.se/

12-16 July, Prague, Czech Republic Postponed to July 202127th International Congress on Sound and Vibration (ICSV27)www.icsv27.org

23-26 August, Seoul, KoreaINTER-NOISE 2020http://internoise2020.org

7-9 September, Leuven, BelgiumISMA 2020 https://www.isma-isaac.be/isma2020/

9-13 Nov, Cancun, Mexico Replaced by Chicago Dec 2020 180th Meeting of the Acoustical Society of Americawww.acousticalsociety.org

2-4 November, Wellington, New ZealandAcoustics 2020 - The Third Australasian Acoustical Societies Conferencewww.acoustics2020.com

23-25 November, Bali, Indonesia1st Biennial International Conference on Acoustics and Vibration (A&V) 2020https://anv2020.com/conference/

202126-28 January, Auckland, New Zealand Noise and Vibration Emerging Methods (NOVEM 2021)www.novem2021.ac.nz

18-21 May 2021, Dublin, IrelandWTN2021 - The Ninth International conference on Wind Turbine Noisehttps://www.windturbinenoise.eu/content/conferences/9-wind-turbine-noise-2021/

12-16 July, Prague28th International Congress on Sound and Vibration (ICSV28)iiav.org

1-4 August, Washington, USAINTER-NOISE 2021www.i-ince.org/

6-10 December, Sydney, AustraliaAcoustics 2021, SydneyJoint meeting AAS, ASA, Wespac and [email protected]

202224-28 October, Gyeongju, Korea

http://www.icacommission.org/calendar.html

Meeting dates can change so please ensure you check the conference website and also check ICA calendar athttp://www.icacommission.org/calendar.html

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acoustics australia...acoustics australia (2020) 48:1–21 3 acoic aalia vol. 48, no. 1, apil 2020...

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