Sir Harold Marshall KNZM, the joint founder of Marshall Day Acoustics with Chris Day, is Group Consultant, specialising in theatre and concert hall design.

Sir Harold Marshall is an architect, engineer and physicist who is recognised internationally for his contribution to concert hall design.  Formerly Professor of Architecture in the University of Auckland and Head of the Acoustics Research Centre, Dr Marshall has over 45 years experience in the acoustical design of auditoria and concert halls.  His work is widely cited in technical literature and his interest in these fields has been sharpened by his active involvement in musical performance both as a chorister and as a bass-baritone. The composer with whom he feels the greatest affinity is J S Bach.  His major discoveries were:  the particular importance of lateral reflected sound and of the architectural  means to achieve this in concert halls, the necessary and sufficient conditions for excellent ensemble for both instrumental groups and singers, and discussion of acoustical and architectural relationships in the design process.  He is also a published poet.

Sir Harold's present role in Marshall Day Acoustics is Group Consultant, leading the conceptual design of concert halls and similar commissions as required by any of the eight practice offices.  This is a role for which his architectural and musical skills have uniquely equipped him to communicate with architects and their clients. 

Currently he is involved in three major projects in China, two in Australia, one in NZ and the Philharmonie de Paris in France.

In 1994 Harold was elected a Fellow of the Royal Society of New Zealand.  He also holds Fellowships in the Acoustical Society of America and the NZ Institute of Architects. In 1995 Dr Marshall was awarded the Wallace Clement Sabine Medal by the Acoustical Society of America for his contributions to the field of architectural acoustics, particularly for the understanding and design of concert halls, and in 2006 received the Gold Medal of the Acoustical Foundation of India.

In 2008, Emeritus Professor Marshall was made a Distinguished Companion of The New Zealand Order of Merit for services to acoustical science and in 2009 accepted the title Knight Companion of the Order, KNZM.

Sir Harold enjoys choral singing, gardening and both freshwater and sea fishing.

Recent project experience includes:

:: The Guangzhou Opera House with architect Zaha Hadid

:: Chatswood Civic Place Concert Hall with FJMT architects Sydney

:: Design Acoustician for the Philharmonie de Paris, France with Ateliers Jean Nouvel

:: As Acoustical Design Consultant for the Melbourne Recital Hall with architects ARM Melbourne and Arup Acoustics

Publications

Publications of Sir Harold Marshall