Measured effects of diffusers and absorbers on the low-frequency modal structures in two reverberation chambers

Abstract

The Brigham Young University Acoustics Research Group has recently constructed two rectangular reverberation chambers for its research efforts. Steps have been taken to qualify the chambers for a variety of applications. Stationary diffusers and low-frequency absorbers were designed and installed as part of this process. This paper presents measurements taken at various stages of the installation to assess the impact of the diffusers and absorbers on the modal structure of the low-frequency fields.