The June JASA Express Letters cover features an image of a simulated pressure field from figure 2 of “A three-dimensional active cloaking strategy for the Helmholtz equation that exploits the symmetry of the platonic solids,” Cheuk-Him Yeung, William J. Parnell, and Tom Shearer. The image depicts cloaked regions for various source distributions.

This month’s issue also includes three Editor’s Picks you don’t want to miss:

• “Joint trans-dimensional inversion for water-column sound speed and seabed geoacoustic models,” by Stan E. Dosso and Julien Bonnel.
• “Approximation of modal wavenumbers and group speeds in an oceanic waveguide using a neural network,” by A. Varon, J. Mars, and J. Bonnel.
• “Distributed acoustic sensing for detecting near surface hydroacoustic signals,” by Alexander S. Douglass, Shima Abadi, and Bradley P. Lipovsky.

Browse the rest of the issue at https://pubs.aip.org/asa/jel/issue/3/6.