Acoustical properties of a triple-leaf structure with microperforated panels

In this Letter, as a fundamental study on acoustic partitions, the sound absorption and transmission of a triple-leaf structure with two microperforated panels (MPPs) and a nonperforated panel between them are theoretically studied. In this structure, resonant transmission as well as sound absorption occurs owing to the effect of MPPs. This may allow the acoustic properties of this type of partition to be tuned. In this Letter, we provide basic insights into the properties of this type of triple-leaf structure.