our technical papers
We make a point of actively disseminating what we learn from our projects and research with presentations and papers across Canada and around the world. You can download a selection of papers and presentations here:
acoustics
Acoustical Renovation of the Queen Elizabeth Theatre, Vancouver: Spatial Sound in a Wide Room, O’Keefe, J., International Congress on Acoustics, Madrid, September 2-7, 2007
The Esplanade in Medicine Hat Canada: From Plenum to Flytower, O’Keefe, J., Proceedings of the Institute of Acoustics, 2006
Acoustical Problems in Large Post-War Auditoria, O’Keefe, J., Proceedings of the Institute of Acoustics, 2002
Acoustical Renovation of The Orpheum, Vancouver I. Measurements Prior to Renovation, O’Keefe, J., Bradley, J., Canadian Acoustics,Vol. 28 No. 1. March 2001
Sounds of Our Times: Two Hundred Years of Acoustics, Robert T. Beyer, ISBN 0-387-98435-6, reviewed by J. O’Keefe for Canadian Acoustics/Acoustique Canadienne, 2001
The Influence of Height to Width Ratio and Side Wall Boxes on Room Acoustics Measurements, O’Keefe, J., Inst. of Acoustics, Manchester, October 1999
Modern measurements optimised diffusion & electronic enhancement in a large fan shaped room, O’Keefe, J., Cox, T., Muncy, N., Barbar, S., International Congress on Acoustics – Seattle, USA, July 1998
Acoustical renovation of The Orpheum Theatre, Vancouver Canada, O’Keefe, J., Soloudre, G., Bradley, J., International Congress on Acoustics – Seattle, USA July 1998
Sound Strategies, O’Keefe, J., Canadian Architect Vol. 43 No. 3 March 1998
Measurement of Stage to Pit Balance in Four Proscenium Arch Theatres, O’Keefe, J., Inst. of Acoustics – Acoustics at the Millennium , Belfast, May 1997
Echo Suppression in a Large Fan Shaped Auditorium, O’Keefe, J., Canadian Acoustics, October 1997
Auditorium Acoustics and Architectural Design, Michael Barron, ISBN 0-419-17710-8 / 0-442-31623-2 (USA), reviewed by J. O’Keefe for Canadian Acoustics/Acoustique Canadienne, 1997
Acoustical Measurements On Concert And Proscenium Arch Stages, O’Keefe, J., Inst. of Acoustics – Opera House & Concert Hall Symposium, February 1995
noise
Concerns with using simplified wind profiles in determining noise impacts of wind turbines, Gambino, V., Ashtiani, P., Preager, T., Ramakrishnan, R., INTER-NOISE 2009, Ottawa, Canada, August 23-26, 2009
Wind Turbine Noise Diagnostics, Richarz, W., INTER-NOISE 2009, Ottawa, Canada, August 23-26, 2009
Acoustic Performance Considerations For A “Once Through Steam Generator”(OTSG), Gambino, V., Ashtiani, P., 2006
Characterization of Sound Emitted by Wind Machines Used For Frost Control in Vineyards, Gambino, V., Gambino, T., Fraser, H., 2002
Prediction of Heat Recovery Steam Generator (HRSG) noise attenuation using scale model testing, Bracken, M., Barman, M. and Gambino, V., Proceedings of the Spring Environmental Noise Conference, Alberta EUB, 1996.
Active Noise Cancellation at the Ottawa Health Sciences Centre Co-generation Facility, Gambino, V., Gambino, A., Rimrott, R., Richarz, W., 1995.