Volume 44 No 3 May/June 2019 ACOUSTICS BULLETIN in this issue... The Woolly Shepherd wins the first ever IOA Sustainable Design Award plus... • WHO Environmental Noise Guidelines for the European Region 2018, what they mean for the UK • Update on the uses and abuses of sound power determinations in noise impact assessments • Specifying CE marked noise barriers • How do we judge voices? cover.indd 1 02/05/2019 12:13 Our Noise insulation and Vibration damping solutions deserve a fanfare Acoustic Membranes Dense and fl exible polymeric noise insulation barrier products used within fl oor, wall, and roof constructions •Single and Multi-ply membranes available. •Products are recyclable and manufactured from sustainable sources. Anti-Drumming Material High performance resonant damping treatments - for example on Metal Roof and Wall Systems. •As referenced in DfES produced BB93 “Acoustic Design for Schools” •Available as Self-Adhesive sheets or Spray & Trowel applied compounds. 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Tel: 01254 583825 Fax: 01254 681708 Email: [email protected] Website: www.wsbl.co.uk Sensors and instrumentation for the professional engineer • Long-term Monitoring • Frequency Analysis • Multichannel Analysis • Acoustic Imaging • Noise & Vibration Meters • Electroacoustic Testing • Building Acoustics • Human Vibration • Sound Quality • Transducers • Sound Engineering 01234 639550 [email protected] www.acsoft.co.uk Scan the code for full contact details Electro-Acoustic Testing p02_ioamay19.indd 1 26/04/2019 08:49:52 Contacts Publisher Juliet Loiselle ACOUSTICS Acoustics Bulletin Volume 44 No 3 May/June 2019 Contributions, letters and BULLETIN information on new products to: Institute a airs Feature Nicky Rogers 5 President’s letter 22 Sustainability – your potato Email: [email protected] 6 Engineering Division starch wrapper Tel: 01778 391128 7 Engineering Division Technical contributions – pro ling two new 44 Judging personalities Advertising: CEng members by voice alone Dennis Baylis MIOA 8 Ken Dibble obituary 52 Uses and abuses of sound Email: [email protected] 10 Branch news power determinations in Tel: 00 33 (0)5 62 70 99 25 16 Awards season at the IOA noise impact assessments – – introducing the rst an update Published and produced by: ever winner of the IOA General news Sustainable Design Award e Institute of Acoustics 58 World industry news Instrumentation Corner Silbury Court, 66 Product news 24 Specifying CE marked 406 Silbury Boulevard, noise barriers Industry updates Milton Keynes, 30 2019 conference programme 57 Cirrus Research sponsors Buckinghamshire MK9 2AF and acoustic events new sporting talent Tel: 0300 999 9675 36 WHO Environmental Noise Miller Goodall − Guidelines for the European still growing Edited, designed and printed by: Region 2018; what could Peter Fleming Warners Group Publications they mean for the UK? joins Campbells NTi Audio opens new e Maltings This publication is printed by Warners UK o ces West Street 01778 395111 57 Bourne ANC sound insulation testing workshop Lincs PE10 9PH Regular 70 Committee meetings and Views expressed in Acoustics Bulletin are not necessarily the o cial view of the Institute, nor Institute Council do individual contributions re ect the opinions of the Editor. While every care has been taken in the preparation of this journal, the publishers cannot be held responsible for the accuracy of the information herein, or any consequence arising from them. Multiple copying of the contents or parts thereof e Institute of Acoustics in the UK’s professional without permission is in breach of copyright. body for those working in acoustics, noise Permission is usually given upon written application and vibration. It was formed in 1974 from the to the Institute to copy illustrations or short extracts amalgamation of the Acoustics Group of the from the text or individual contributions, provided Institute of Physics and the British acoustical that the sources (and where appropriate the Society. e Institute of acoustics is a nominated copyright) are acknowledged. body of the Engineering Council, o ering e Institute of Acoustics does not necessarily registration at Chartered and Incorporated Engineer levels. endorse the products or the claims made by e Institute has over 3000 members working in a diverse range of research, educational, govern the advertisers in the Acoustics Bulletin or on mental and industrial organisations. is multidisciplinary culture provides a productive environment literature inserted therein. for cross-fertilisation of ideas and initiatives. e range of interests of members within the world of All rights reserved: ISSN 0308-437X acoustics is equally wide, embracing such aspects as aerodynamics, architectural acoustics, building acoustics, electroacoustic, engineering dynamics, noise and vibration, hearing, speech, physical Annual Subscription (6 issues) £132.00 acoustics, underwater acoustics, together with a variety of environmental aspects. e Institute is a Single copy £22.00 Registered Charity no. 267026 @2019 e Institute of Acoustics Acoustics Bulletin May/June 2019 3 contents.indd 3 02/05/2019 12:14 Listening to the World SINCE 1970 ////////////////////////////////////////////////////////////////////////// Sold in more than 70 countries across the world Changed noise measurement with the invention of the doseBadge wireless noise dosimeter Institute of Acoustics founding sponsor since 1974 8500+ Optimus Sound Level Meters sold since 2010 //////////////// For More Information Visit: ///////////////////// cirrusresearch.co.uk p04_ioamay19.indd 1 26/04/2019 08:50:42 ProductLetter fromAffairs Milton Keynes Dear Members Our friends in the north recently and was well attended by people with extended invitations for the IOA to join backgrounds in consultancy and university them on some interesting and important research, in both audio and acoustics. events in Scotland. e rst, on 5th April, Details of the meeting will be reported was to review the conference facilities at in a future Bulletin, but I would like to the Scottish Event Centre (SECC) on the highlight some interesting items. Stuart Edinburgh Medal banks of the Clyde. e IOA is preparing Gillan gave an update on the Scottish en o to attend the Edinburgh Medal a bid to hold the major international Audio and Acoustics Network (SAAN), Address and reception. e Medal is conference, Internoise 2022, and set up to promote interaction between awarded to men and women working in Allan Chesney (CEO) and I travelled to the creative digital audio industries and science and technology who have made the venue to con rm that it could hold acoustics consultancies and research signi cant contributions to humanity. a conference of about 1,000 delegates in groups. is is another important Scottish Previous recipients are Sir David 15 or more parallel sessions over three initiative, which I hope will eventually Attenborough and Professor Peter days. Shona Brierton of the Glasgow expand and roll out to the rest of the UK. Higgs. e meeting was attended by the Convention Bureau hosted the visit Kirill Horoshenkov followed with great and good, and this year’s recipient and introduced Margaret Sherry, who a presentation on the progress and was Christiana Figueres, former UN will lead our Professional Conference achievements of the UK Acoustics Network Executive Secretary on Climate Change, Organisation (PCO). ey and their (UKAN). I have written about UKAN for her key role in bringing nations sta provided us with compelling proof in previous Bulletins and even nagged together to deliver the Paris Accord. Her that the IOA can manage this event and members to join. Its present membership talk was optimistic and inspiring, Glasgow is the place to do it. is more than 600 and expanding and although it contained the warning that e bid, which is in competition registration is easy to do. I gave a short the target increase in temperature with another European country, will be presentation on the IOA Strategy Review should be 1.5 degrees and no higher. presented at Internoise 2019 in Madrid, and the actions being put into place. e Noise is a pollutant, of course, which and is to include details of the budget strategic priorities are perception and impacts on the well-being of individuals and organisation and of the technical education. e perception is of acoustics and communities, and the news about programme. I would like to thank IOA and the IOA, by the public, policy our new award on sustainable design, members who agreed to be part of the makers, other professions and by our own initiated by Peter Rogers, is timely. e Local Organising Committee (LOC) membership. e action on education is rst award recipient, ‘Woolly Shepherd’ and to chair the 15+ main topics, the development of blended courses of is for the inventive (and charming) use which will range from aircra noise to combined online and in-house modules, of rurally sourced material to enhance vibro-acoustics. I hope to report on the also of news items tailored to audiences the acoustics of children’s spaces etc is success of the bid in the next Bulletin. ranging from children being introduced reported in this issue on page 19. to STEM, interested lay persons, and Scottish Branch meeting experts and practitioners. e Branch en o to Edinburgh on the same meeting ended with the announcement day, to attend the meeting of the that Edinburgh University is in the process Scottish Branch, chaired by Alistair of launching an undergraduate