Principal Consultant & Quality Manager
Consultant & Equipt Manager
Assistant Consultant & Software Developer
Junior Consultant and Equipment Technician
Office and Accounts Manager
Associate External Consultant
PhD, BSc, FIOA
Andy McKenzie is a director and manager of the Salisbury office. He graduated in 1981 with an honours degree in Engineering Acoustics and Vibration from the Institute of Sound and Vibration Research (ISVR), at the University of Southampton, where he subsequently obtained his PhD, awarded in 1988 for work on hearing aid design for use in noisy environments.
He has worked in acoustics since graduation, firstly with Wilkinson-Murray in Sydney, Australia, then as a research assistant and research fellow at the ISVR, before forming Hayes McKenzie with Malcolm in 1991. He is a Fellow of the Institute of Acoustics; an invited member of the UK Environmental Law Association Noise Working Group; and is on the editorial board of the journal "Acoustics in Practice".
Hayes is a director and manager of the Machynlleth
office. He graduated in 1982 with a degree in Electronic & Communication
Engineering from the Polytechnic of North London. He has worked in the field of
acoustical engineering since graduation rising through Hann Tucker Associates, becoming
an Associate in 1990, before forming Hayes McKenzie with Andy in May 1991.
was been a member of the DTI Working Group which produced ETSU-R-97: "The
Assessment and Rating of Noise from Wind Farms" and is chair of the Institute of
Acoustics working group on wind turbine noise which produced the 2013 best practice guidance on the application of ETSU-R-97.
Shepherd is an associate and deputy manager of the Salisbury office.
He graduated from the University of Southampton in 2005 with a Master of
Engineering degree in Acoustical Engineering. While at university he worked
part-time at a number of acoustic consultancies, including Hayes McKenzie, and
joined full-time following graduation.
is responsible for handling all aspects of project management including
preparing quotations, carrying out noise modelling, data analysis, assessment,
and reporting. As well as managing his own portfolio of projects, Rob carries
out technical reviews of other consultants' analysis and reports, to ensure that
all work is carried out to our high standards.
Roberts is a principal consultant at the Salisbury office with responsibility for
IT and workload management. He has a BEng (Hons) degree in Acoustical
Engineering from the University of Southampton. He joined us in
2009 after working for Sustainable Acoustics where he gained experience in environmental noise
assessment for the support of planning applications; and
design-stage building acoustics projects.
is registered with the Association of Noise Consultants for sound insulation
testing, and is responsible for
undertaking pre-completion sound insulation tests and preparing reports for
remedial, or design-stage, building acoustics projects. Seth has also held an
active role on the Institute of Acoustics Publications Committee since 2008.
Craven is a principal consultant at the Salisbury office. He originally joined
us in 2004, after completing a degree in Audio Technology at
Salford University, working in the Machynlleth office for three years.
2008 he joined URS, where he provided support to the Environmental Impact
Assessment team on noise and vibration issues for a diverse range of projects,
including large residential, commercial and industrial developments; oil and
gas infrastructure; and construction. The role also included advancing the
company objective of expanding EIA-related services and providing advice on
wind turbine noise, as part of the trial Renewable Energy and Planning Expert
Support Network. He re-joined our company in October 2011.
BSc, MSc, MIOA
Levet is Hayes McKenzie's Principal Researcher, based at our Machynlleth office. He graduated from the
University of Salford in 2005 with a BSc in Audio Technology. This was followed
by an MSc by Research degree, also from Salford, awarded in 2009. The MSc
degree was undertaken in conjunction with wind turbine manufacturer GE Wind Energy
and involved research and measurement campaigns related to the sound power
level measurements of wind turbines.
joined us in 2007 and was a major contributor to the Institute of Acoustics
Amplitude Modulation Working Group who developed a globally accepted metric for
the quantification of amplitude-modulated noise from wind turbines. He now splits his time between work for clients and research work.
Robin Woodward is a principal consultant, now based at our Machynlleth office. He joined the company in 2010 after graduating from the Institute of Sound and Vibration Research at the University of Southampton, with a BSc Hons in Acoustical Engineering and Music.
Since joining us, Robin has had a driving influence on improving quality and consistency within the company, culminating in his key role in gaining Hayes McKenzie an accreditation from UKAS for their wind turbine testing activities, for which he is the quality manager. He also serves on the British Standards and IEC committees responsible for the UK input to and maintenance of IEC 61400-11, and the development of IEC 61400-11-2, where he heads up the expert groups on AM and Tonality, and the Institute of Acoustics' Meetings Committee, where he is responsible for drafting guidance for virtual meetings.
BMus [Tonmeister], IOA Dip Acoustics & Noise Control, MIOA
Charlie Everett is a consultant in our Salisbury office. He joined us in 2016 and has a Tonmeister degree in
Music and Sound Recording from the University of Surrey and an Institute of Acoustics Diploma in Acoustics and Noise Control.
He joined us in October 2016 as a junior consultant and equipment technician, while he learnt the 'tools of the trade'. He is still acting as equipment manager while Ed gets up to speed on this demanding aspect of our consultancy practice.
Aedan Mansfield is an assistant consultant and joined us in 2017 after graduating from ISVR at Southampton University in 2017 with a First in Acoustical Engineering
He originally came to us for a week's try-out in his 2017 Easter Holidays, followed by a month placement in the summer before his second summer placement at Apex Acoustics in Gateshead.
He writes excellent code for analysis and assessment in MatLab and Python and is our go-to person for noise predictions using the Cadna A software and site visits to far-flung parts of the country.
Ed is a junior consultant and came directly from the ISVR (Institute of Sound & Vibration Research) at Southampton University with a BSc degree in Acoustics with Music. He will be taking over from Charlie and Aedan on management of our extensive range of noise measurement equipment and other devices.
PhD, MSc, BSc, PGCertEd, MIOA
Ian Flindell is an independent acoustics consultant, researcher and lecturer from the Institute of Sound and
Vibration Research at Southampton University where he spent most of the last 40 years. He is widely known across Europe as an expert in subjective acoustics specialising in the assessment and management of
environmental noise, particularly around major airports. He has
been a leading contributor to the development of standards, regulations and methods of assessment through BSI, UK government, the European
Commission, and the World Health Organisation.
Ian and Andy have been working together since 1981 both at ISVR, and latterly at Hayes McKenzie. We are delighted to officially welcome him to our team as an external associate consultant.