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Home - Speaker Test - Diffusion Test - Material Test - Data - Pricing - Location - Contact us
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Papers & Publications ----------------------------------------------------------------------------------------------2009 May ASA Portland / Aug INCE Ottawa Absorption Coefficents Pt 1: Is Area Enough? (Edge Effect, Absorption) Presentation DownloadPaper DownloadAbsorption Coefficents Pt 2: Is "Edge Effect" More Important than Expected? (Edge Effect, Absorption) Presentation DownloadPaper Download----------------------------------------------------------------------------------------------2011 Oct ASA San Diego Measuring Absorption, Bad Methods and Worse Assumptions (Edge Effect, Absorption) Presentation DownloadDiffusion and scattering: An improved method of measuring both at the same time (NA) ----------------------------------------------------------------------------------------------2012 Sept ASA Kansas City Accuracy of acoustic simulations and the effects of material databases (NA) ----------------------------------------------------------------------------------------------2013 Dec ASA San Francisco A Comparison of the Predicted Absorption of Different Sized and Shaped Materials Using Traditional Absorption Coefficients vs Proposed Absorption Constant (Edge Effect, Absorption) Presentation DownloadA New Way of Determining the Total Absorption of Gypsumboard Wall Structures (Edge Effect, Absorption) Presentation Download----------------------------------------------------------------------------------------------2015 April ASA Pittsburgh How-To Guide: Making Speaker Measurements used in Simulation Programs (Speakers) Presentation DownloadDiffusion and scattering: A critique of existing standards and data (NA) A better method or methodology for the measurement of diffusers (NA)
----------------------------------------------------------------------------------------------2016 Dec ASA Honolulu Absorption Coefficient: Dead or Alive? (Results of the "ASTM C423 Inter Laboratory Study) (Edge Effect, Absorption) Presentation DownloadDiffusion, Better Ways of Measuring it, Displaying the Data and Using it in Room Simulations (Diffusion, Diffraction) Presentation Download----------------------------------------------------------------------------------------------2017 Dec ASA New Orleans Absorption-The misunderstandings about what can be measured and the newest ideas of how to perform these measurements (Edge Effect, Absorption) Presentation DownloadDiffusion, When phase and energy becomes more important than directivity in the perception of space 2017 NOLA (Diffusion, Diffraction) Presentation Download----------------------------------------------------------------------------------------------2018 Mar ASA Minneapolis Old Problems, New Solutions, Architectural Acoustics in Flux; Update on 2017 NOLA (Edge Effect Spacing, Absorption) Presentation DownloadDiffusion: How new research and data formats can be of use in simulations (NA) ----------------------------------------------------------------------------------------------2018 Sept 2018 Victoria, BC How to build an acoustic lab in 5 months (video presentation) Presentation DownloadUsing laboratory measurement data to improve acoustic simulations and evaluate performance(NA) ----------------------------------------------------------------------------------------------2020 Jan 2020 AES-PNW Seattle Old Problems, New Solutions, Architectural Acoustics in Flux 2; AES-PNW (powerpoint and audio presentation) Absorption, Edge Effect, Spacing, Diffusion, Diffraction, Transmission Loss, Speakers, Etc.) Presentation Download----------------------------------------------------------------------------------------------2023 Nov 2023 JASA Vol 154 No.5 Estimation of the random incidence sound absorption coefficients of different size rectangular samples; JASA Paper Download----------------------------------------------------------------------------------------------2024 Jul 2024 ICSV30 Amsterdam The random incidence sound absorption coefficients of a rectangular array of rectangular patches of a material Paper Download |
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