SoundBender: dynamic acoustic control behind obstacles

Norasikin, Mohd Adili, Martinez Plasencia, Diego, Polychronopoulos, Spyros, Memoli, Gianluca, Tokuda, Yutaka and Subramanian, Sriram (2018) SoundBender: dynamic acoustic control behind obstacles. UIST 2018 31st Annual ACM Symposium on User Interface Software and Technology, Berlin, Germany, October 14-17, 2018. Published in: UIST '18 Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology. 247-259. Association for Computing Machinery, New York, NY, USA. ISBN 9781450359481

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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.

Item Type: Conference Proceedings
Keywords: Acoustic manipulation; Metamaterials; Self-bending beams; user-interfaces; human-computer interaction
Schools and Departments: School of Engineering and Informatics > Informatics
Research Centres and Groups: Centre for Computer Graphics
Subjects: T Technology
Related URLs:
Depositing User: Sriram Subramanian
Date Deposited: 28 Aug 2018 10:20
Last Modified: 30 Oct 2018 16:32

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Project NameSussex Project NumberFunderFunder Ref
Leviateg1987EU FET Open737087