posted on 2023-06-09, 14:47authored byMohd Adili Norasikin, Diego Martinez Plasencia, Spyros Polychronopoulos, Gianluca MemoliGianluca Memoli, Yutaka Tokuda, Sriram Subramanian
Ultrasound manipulation is growing in popularity in the HCI community with applications in haptics, on-body interaction, and levitation-based displays. Most of these applications share two key limitations: a) the complexity of the sound fields that can be produced is limited by the physical size of the transducers; and b) no obstacles can be present between the transducers and the control point. We present SoundBender, a hybrid system that overcomes these limitations by combining the versatility of phased arrays of transducers (PATs) with the precision of acoustic metamaterials. In this paper, we explain our approach to design and implement such hybrid modulators (i.e. to create complex sound fields) and methods to manipulate the field dynamically (i.e. stretch, steer). We demonstrate our concept using self-bending beams enabling both levitation and tactile feedback around an obstacle and present example applications enabled by SoundBender.
Funding
Leviate; g1987; EU FET Open; 737087
History
Publication status
Published
File Version
Accepted version
Journal
UIST '18 Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology