Complete High-speed Speaker and Material Testing

 
 
 

 

Papers & Publications

----------------------------------------------------------------------------------------------

2009

Absorption Coefficents Pt 1: Is Area Enough?

Presentation Download

Paper Download

 

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

Presentation Download

Paper Download

----------------------------------------------------------------------------------------------

2012

Measuring Absorption, Bad Methods and Worse Assumptions

Presentation Download

----------------------------------------------------------------------------------------------

2013

A Comparison of the Predicted Absorption of Different Sized and Shaped Materials Using Traditional Absorption Coefficients vs Proposed Absorption Constant

Presentation Download

 

A New Way of Determining the Total Absorption of Gypsumboard Wall Structures

Presentation Download

----------------------------------------------------------------------------------------------

2015 

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

Presentation Download

----------------------------------------------------------------------------------------------

2016 

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

Presentation Download

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

Presentation Download

NWAA Labs, Inc 
90 Tower Blvd.
Elma, WA 98541
253-973-1018