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Complete High-speed Speaker and Material Testing

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Home - Speaker Test - Diffusion Test - Material Test - Data - Pricing - Location - Contact us

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Papers & Publications

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2009 May ASA Portland / Aug INCE Ottawa

Absorption Coefficents Pt 1: Is Area Enough? (Edge Effect, Absorption)

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Paper Download

 

Absorption Coefficents Pt 2: Is "Edge Effect" More Important than Expected? (Edge Effect, Absorption)

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Paper Download

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2011 Oct ASA San Diego

Measuring Absorption, Bad Methods and Worse Assumptions (Edge Effect, Absorption)

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Diffusion and scattering: An improved method of measuring both at the same time (NA)

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2012 Sept ASA Kansas City

Accuracy of acoustic simulations and the effects of material databases  (NA)

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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)

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A New Way of Determining the Total Absorption of Gypsumboard Wall Structures (Edge Effect, Absorption)

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2015 April ASA Pittsburgh 

How-To Guide: Making Speaker Measurements used in Simulation Programs (Speakers)

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 Diffusion and scattering: A critique of existing standards and data  (NA)

A better method or methodology for the measurement of diffusers  (NA)

 

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2016 Dec ASA Honolulu 

Absorption Coefficient: Dead or Alive? (Results of the "ASTM C423 Inter Laboratory Study) (Edge Effect, Absorption)

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Diffusion, Better Ways of Measuring it, Displaying the Data and Using it in Room Simulations (Diffusion, Diffraction)

Presentation Download

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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)

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Diffusion, When phase and energy becomes more important than directivity in the perception of space 2017 NOLA (Diffusion, Diffraction)

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2018 Mar ASA Minneapolis

Old Problems, New Solutions, Architectural Acoustics in Flux; Update on 2017 NOLA (Edge Effect Spacing, Absorption)

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Diffusion: How new research and data formats can be of use in simulations (NA)

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2018 Sept 2018 Victoria, BC 

How to build an acoustic lab in 5 months (video presentation)

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Using laboratory measurement data to improve acoustic simulations and evaluate performance(NA)

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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.)

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