Topological acoustics is an emerging field that lies at the intersection of condensed matter physics, mechanical structural design and engineering. It explores construction novel artificial structures, such as acoustic metamaterials phononic crystals, to manipulate sound waves robustly, taking advantage topological protection. Early work on was limited duplicating phases have been understood in...

Spatial acoustics constitute a major part of our experience of the world. The ability to make sense of our environment depends on spatial awareness and hearing plays a major role in this process. Yet in videogames, the acoustic information available to us is reduced. This cripples our hearing, leaving spatial awareness dependant on vision alone. This thesis examines the problems surrounding the...

We report both numerical and experimental constructions of a tunnel structure with low-frequency low-reflection bidirectional sound insulation (BSI). The designed was constructed from pair lossy acoustic metasurfaces (AMs), which consists six ultrathin coiled unit cells, attached on sides. Based the generalized Snell?s law phase modulations for AMs, BSI based reflections blind areas created by ...