Browse Publications Technical Papers 2009-01-2141
2009-05-19

Thoughts behind Developing SAE Standard J2883 - Random Incidence Sound Absorption Tests Using a Small Reverberation Room 2009-01-2141

The paper discusses the development of a new SAE standard J2883 for measuring sound absorption performance of absorption materials in a small reverberation room. It discusses the need for such a standard particularly in the automotive industry. It also discusses the need for understanding the parameters such as the room volume, diffusion and cut-off frequency, and the sample size that affect the measurements and how to address these parameters in developing a robust test method. Finally, the paper discusses some of the findings of the round robin tests where measurements were conducted in various size rooms, task force activities, and the proposed repeatability and reproducibility values of the test method.

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