“…Thus far, the sound absorption properties of numerous types of lattice structures have been investigated. This includes lattice structures consisting of solely trusses, [ 9 , 10 , 11 ] solely plates, [ 11 ] trusses and plates, [ 11 , 12 ] tubes, [ 13 , 14 ] tubes and plates, [ 15 , 16 , 17 ] smooth skeletal structures, [ 18 , 19 , 20 ] triply periodic minimal surface, [ 21 , 22 ] and bioinspired features. [ 23 ] Beyond the unit cell level, heterogeneities such as heterogeneously‐structured unit cells placed in parallel, [ 12 , 23 , 24 ] functionally graded arrangements, [ 25 , 26 , 27 , 28 ] and additional acoustic meta‐features [ 9 ] have also been proposed.…”