A A A Volume : 45 Part : 2 11th International Conference on Auditorium Acoustics, 28-30 Sep 2023 Greece Vol.45 Pt.2 2023 978-1-906913-45-8 Contents Acoustical challenges in horse shoe shaped opera houses A C Gade, Gade & Mortensen Akustik A/S; Charlottenlund, Denmark Subjective listening studies conducted by Arup at a leading western opera house Matthew Lomax, Philip Wright, Arup, London Absence of seat-dip in the stalls of the Teatro Colón in Buenos Aires Gustavo Basso, University of La Plata, Argentina Teatro São Carlos – Another opportunity for improvement of the main Portuguese opera house Octávio Inácio, Daniel José, InAcoustics, Portugal The design of the opera theatre auditorium and a reflection on the reciprocal influence between opera house and concert hall design Alban Bassuett, Arup, USA Flexible acoustics and sound system design to accommodate programming inside and outside the venue spaces Ryan Bizorek, Arup, USA The architectural design of the Stavros Niarchos Foundation Cultural Center Vassily Laffineur, RPBW Architects, France Sound isolation and HVAC noise control: Design versus practical challenges and constructability Rachid Abu-Hanson, Arup, USA Some thoughts on whole stage imaging for theatres Peter Exton, Marshall Day Acoustics, Melbourne, Australia Perception of musical dynamics: Orchestra spectra combined with auditory modeling Tapio Lokki, Pedro Llado, Aalto University Biometric evolution of space Paul Bavister, The Bartlett School of Architecture, University College London Good view or good acoustics? Can I have both? Yuxiao Chen, Marshall Day Acoustics, Australia; Densil Cabrera, The University of Sydney, Australia Music, room, two ears, design and paradigms Magne Skålevik, AKUTEK and Brekke & Strand The influence of reflection surface size in concert halls Evan Green*, Otavio Colella-Gomes, Jannis Kriz, Vincent Berrier, Thomas Wulfrank, Eckhard Kahle, Kahle Acoustics, Belgium Acoustic effects of long-delayed reflections from rear walls in a shoebox hall Toshiki Hanyu, Akane Kawai, Ryoichi Suzuki, Kazuma Hoshi, Nihon University, Japan Why do large concert halls need to be optimized for early reflection coverage? Eckhard Kahle, Yann Jurkiewicz, Evan Green, Vincent Berrier, Kahle Acoustics Zone to zone reflector optimisation using a genetic algorithm John O’Keefe, O’Keefe Acoustics, Canada Early reflector geometry optimization methodology Konstantinos Dadiotis & A Galatas, ACC Acoustics Consultancy Company, Greece Acoustic upgrade for the concert hall of the Sydney Opera House Gunter Engel & Jürgen Reinhold, Müller-BBM Building Solutions GmbH, Germany Transforming David Geffen Hall – A story of the world’s most infamous concert hall PH Scarbrough & CN Blair Akustiks, LLC, USA JA Nepomuceno, Akustiks, LLC & Acústica & Sônica, Brasil Fine tuning of the Sibelius Hall stage acoustics Lehto P, Möller H, Pätynen J, Gómez Bolaños J, Laukkanen ., Vehviläinen S, Akukon Ltd, Listening and dynamics – Some challenges with a highly absorptive stage environment Svein Folkvord, COWI AS, Norway Connection between iconography and reverberation performance of Byzantine temples: Experimental investigation Panagiotis Karampatzakis, Aristotelian University, Greece How did Epidaurus sound when it was full? Directional measurement of impulse response for an improved computer model Ian Rees, Adrian James Acoustics Ltd, UK Open-air amphitheater in Andros Konstantinos Dadiotis & A Galatas, ACC Acoustics Consultancy Company, Greece K Kondylatou & K Loukos, K. Loukos and Partners Architects, Greece The acoustics design of amphitheatre “Ioannis Despotopoulos” in Athens Conservatoire, Athens, Greece Theo Niaounakis, Theta Acoustics, UK A 350 seats concert hall auditorium with “budget” version concrete side walls; Acoustic design and performance Andrzej K. Klosak, Cracow University of Technology / archAKUSTIK Cracow, Poland, Anders C. Gade, Gade & Mortensen, Denmark In situ acoustic efficiency of variable broadband absorption in music rehearsal studios and music halls Maarten Luykx, Peutz Consultants, Netherlands Optimizing (too) small ensemble rehearsal rooms for acoustic loud music Bård Støfringsdal, COWI, Norway The research behind the design of a new variable acoustics technology Niels Adelman-Larsen, Flex Acoustics, Denmark Size matters: New ways of working with scale models Brian F G Katz, Institut d’Alembert, Sorbonne University, CNRS Peter Stitt, Institut d’Alembert, Sorbonne University Auralization of orchestra based on 1/10 scale model experiment Takayuki Hidaka, Kazunori Suzuki, Shin-ichiro Koyanagi Takenaka Research & Development Institute, Japan Immersive auralisation for choral ensembles Sarabeth S Mullins & Brian FG Katz, Sorbonne University, France A software tool for auralization of simulated sound fields Jens Ahrens, Chalmers University of Technology Measurements in room acoustics – How good are we at it? Ingo B. Witew, Michael Vorländer, RWTH Aachen University, Germany Lateral fraction or cross-correlation for spatial impression? Mike Barron, Fleming & Barron, UK Revisiting Sabine’s formula Jean-Dominique Polack, Sorbonne Université, France Efficiency and uncertainties of sound energy decay analysis in auditoria Ning Xiang, Rensselaer Polytechnic Institute, USA Zuhre Su-Gul, Bilkent University, Turkiye Combining natural acoustics and audio in a debating chamber Bob Essert, Imagine Sound, UK Round and round we go: Speech intelligibility and localization for in-the-round spaces Luca Dellatorre, Charcoalblue LLP, UK Acoustic design of the Shakespeare North, a Jacobean theatre in Liverpool Onur Gulen, AECOM, UK Covid, separation & all that jazz Anne Minors, Imagine Sound Ltd, UK Room acoustic measurements in halls with electro-acoustic enhancement systems Henrik Möller, Aalto University, Finland Łukasz Błasiński, University of Adam Mickiewicza, Poland Evaluation of a geometric approach to active acoustics Volker Werner, Fabio Kaiser, Clemens Frischmann, Amadeus Acoustics, Austria A comparison of musical performances in different acoustic environments created with an active acoustics system Benedikt Roß, Volker Werner, Clemens Frischmann, Simon Neeten, Amadeus Active Acoustics, Austria The significance of excellent concert hall acoustics for audio recordings of classical music Pauline Heister, University of Music and Performing Arts, Austria Room acoustic design of a 15,000-capacity multipurpose arena P Laukkanen, J Riionheimo & J Pätynen Akukon Ltd., Helsinki, Finland Remedial acoustics in monumental lecture auditoria of neoclassicism in Athens George Xanthoulis, Atkins; Giannis Karagiannis, George Poulakos, Alexandra Sotiropoulou, National Technical University of Athens Acoustic discovery of the Roman theatre of Volterra: Two reconstruction hypotheses in comparison Antonella Bevilacqua, Wladek Fuchs, University of Parma, Italy Acoustic assessment of Argos ancient theatre GeorgeCambourakis,GiannisKaragiannisPanosCoukoutas,AlexandraSotiropoulou, NTUA,Greece Homeric sounds: Recording, classification and comparison of sound phenomena in Iliad and Odyssey Ilias Papageorgiou, NTUA, Greece Fotis Papageorgiou, GISMA University of Applied Sciences, Germany Classical auditoria in the Mediterranean of universally acknowledged acoustics: Evaluating electroacoustic amplification Iasmi Kilaidoni, Actress, Alexandra Sotiropoulou, Giannis Karagiannis*, National Technical University of Athens New Academy of Music in the suburbs of Athens: Architectural language and acoustical solutions Aikaterini Bousia Alexaki, Tasis Papaioannou, Giannis Karagiannis, Alexandra Sotiropoulou, National Technical University of Athens, Greece Chopin’s musical scales: New opera house in Poland; Architecture and acoustic design of multipurpose 1100 seat auditorium Elora Christoula, Kassandra Christoula, Vasiliki Giannoutsou, Vasilios Ghikapeppas Giannis Karagiannis, Alexandra Sotiropoulou, National Technical University of Athens, Greece Sound strength measurements using a pre-calibrated omnidirectional source George Koutsouris, Claus Lynge Christensen, Antoine Richard, Jens Holger Rindel, Odeon, Denmark Development of an omnidirectional source for acoustical scale model measurements Etienne Larochelle*, Vincent Berrier, Thomas Wulfrank, Evan Green, Kahle Acoustics, Belgium * In memoriam Acoustic renovation of a circular-shaped small music hall Ok Cheol Ahn, Youngsan University, Rep. of Korea Sang Eun Jeon, Pusan National University, Rep. of Korea Yong Hee Kim, Youngsan University, Rep.of Korea Measurements of auditorium seats “in the time of cholera” – Challenges in design concert hall auditorium seats during pandemic K Klosak, Cracow University of Technology, Poland & archAKUSTIK, Poland AC Gade, Gade & Mortensen Akustik A/S, Denmark B Ziarko, Cracow University of Technology, Poland Brazilian performing arts center acoustical and architectural database José Augusto Nepomuceno, Acústica & Sônica, Brasil and Akustiks, USA Placement of absorption material: DIN 18041 is misleading Tapio Lokki, Aalto University Antti Kuusinen, Turku University of Applied Sciences Room acoustics mismatches of rehearsal spaces and concert halls and their impact on music performance Giorgos Dedousis,Konstantinos Bakogiannis, Areti Andreopoulou, Anastasia Georgaki, NKUA, Greece Single-value frequency-average measures of early decay time and clarity index to predict reverberance and clarity Fernando del Solar Dorrego & Michelle C. Vigeant, Penn State University, USA A method for automated system calibration in active acoustic systems Clemens Frischmann, Fabio Kaiser, Volker Werner, Amadeus Acoustics, Austria Herisson – An innovative tool for spatial room impulse response (SRIR) measurements Serafino Di Rosario, LINK Acoustique, France; Johan Sick, Matlab, France; Clement Royon, LINK Acoustique, Matlab, France ; Romain Darracq, LINK Acoustique, France ; Sylvain Guitton, LINK Acoustique, France CConcert halls in virtual reality – From audio-visual perception to a common vocabulary Jonas Heck, Josep Llorca-Bofí, Michael Vorländer, RWTH Aachen University, Germany Improvement of stage-to-pit balance using computer simulation in a multi-purpose hall without an orchestra pit Sang-Eun Jeon, Pusan National University Yong-Hee Kim, Youngsan University Finding early time limits 𝑡𝑒 with nonlinear regression on energy decay curves Changqing Xia, The Hong Kong Polytechnic University Using non-wave based modelling to explore how much acoustic diffusion is too much in a concert hall Michael Fort, Ramboll, UK Objective room acoustics parameters and the use of simple mathematical formulas as design inducers: A practical tool for architects in the beginning of a performance hall design Lineu Passeri Júnior, PASSERI Acústica, Brazil; Stelamaris Rolla Bertoli, University of Campinas, Brazil Subjective localisation of a sound source in immersive sound system and stereophonic loudspeakers system Łukasz Błasiński Comparing measured sound strength to theory as a function of reverberation time and room volume J Dunham, Tenor Engineering Group, USA Previous Paper 28 of 37 Next