SoundBender_UIST2018_pdf2.pdf (2.05 MB)
SoundBender: dynamic acoustic control behind obstacles
conference contribution
posted on 2023-06-09, 14:47 authored by Mohd Adili Norasikin, Diego Martinez Plasencia, Spyros Polychronopoulos, Gianluca MemoliGianluca Memoli, Yutaka Tokuda, Sriram SubramanianUltrasound 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 TechnologyPublisher
Association for Computing MachineryExternal DOI
Page range
247-259Event name
UIST 2018 31st Annual ACM Symposium on User Interface Software and TechnologyEvent location
Berlin, GermanyEvent type
conferenceEvent date
October 14-17, 2018Place of publication
New York, NY, USAISBN
9781450359481Department affiliated with
- Informatics Publications
Research groups affiliated with
- Centre for Computer Graphics Publications
Full text available
- Yes
Peer reviewed?
- Yes