This broad review summarizes recent advances and “hot” research topics in nanophononics
and elastic, acoustic, and mechanical metamaterials based on results presented by the …

Acoustic metasurfaces derive their characteristics from the interaction between acoustic
waves and specifically designed materials. The field is driven by the desire to control …

This definitive guide covers the design and application of absorbers and diffusers in
acoustics. Surface diffusion is a relatively young subject area, and diffuser design …

“Schroeder diffuser” is a classical design, proposed over 40 years ago, for artificially creating
optimal and predictable sound diffuse reflection. It has been widely adopted in architectural …

We present deep-subwavelength diffusing surfaces based on acoustic metamaterials,
namely metadiffusers. These sound diffusers are rigidly backed slotted panels, with each slit …

There is a need to be able to quantify how sound is reflected from a surface, in terms of how
it is spatially dispersed. In recent years, diffusion and scattering coefficients have been …

The paper describes an investigation about the acoustic performance of noise barriers with
quadratic residue diffuser (QRD) tops, and with T-, Arrow-, Cylindrical and Y-shape profiles …

It is generally believed that partial diffusion will inevitably occur when sound is reflected off a
real‐life wall. Such diffusion may be caused by the finite size of the wall or by the …

The Boundary Element Method (BEM) is a proven numerical prediction tool for computation
of room acoustic transfer functions, as are required for auralization of a virtual space. In this …

A surface diffusion coefficient is needed in room acoustics to enable the quality of diffusing
surfaces to be evaluated. It may also facilitate more accurate geometric room acoustic …