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Emerging multisensory technologies exemplifying interface and device advancements. (a) Particle-based volumetric displays (Hirayama et al., 2019). (b) Acoustic metamaterials that bend the sound (Norasikin et al., 2018). (c) Mid-air haptic 3D shapes produced by focused ultrasound (Carter et al., 2013). (d) On-face olfactory interfaces (Wang et al., 2020). (e) Gustatory experiences based on levitated food (Vi et al., 2020).
