Senior Members Group Myths in absorption and diffusion and what testing has revealed Ron Sauro President, NWAA Labs Elma, Washington, United States Wednesday 29 June 6pm by Zoom
Senior Members Group
Myths in absorption and diffusion and what testing has revealed”
Ron Sauro President, NWAA Labs Elma, Washington, United States
Wednesday 29 June 2022
at 6pm on Zoom

President and chief scientist in a lab that specializes in measurements of acoustical materials and speakers. NWAA Labs does testing for Absorption Loss (ASTM C423, ISO-354) and Transmission Loss (ASTM E-90). We do high resolution speaker directivity balloon measurements for use in acoustic modelling programs such as EASE, Catt Acoustic and Odeon. We have developed a new testing regime for diffusion testing that provides full 360-degree balloon data as well as polar, frequency response, phase response and magnitude data. This regime is now the basis for a new standard being developed by ASTM for the testing of diffusion.

Our new Reverb room suite allows us to test very accurately down to 31.5Hz and reasonable accuracy down to 20Hz. The level of our testing signal can be as high as 142db broadband from 20Hz-20kHz

Our speaker testing facility is a very large free field room that is 650ft long by 250 ft wide by 80 ft high with the speaker suspended over 15ft in the air over about 4 ft of acoustic foam wedge shapes and is capable of measurements that are phase accurate to 10 degrees at 10kHz.

Leader of many organizations, Designer of rooms and systems for performing Arts, Teacher, Scientist, specializing in Magnetics, Electronics, physics and acoustics, accomplished musician and entertainer, Professional fine arts painter, writer of short stories, Professional Photographer, Public Relations, Carpenter, electrician, plumber, electronic technician as well as designer. At 76 years old, my goal is to have the finest acoustics measuring and research laboratory in the world. Also, major goal is live out a happy life with my family

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This event is free to attend for members and non-members.

Zoom details available to Members on the members pages, non-members please email linda.canty@ioa.org.uk 

This presentation wil be recorded.

29 June 2022

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