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Sonoflex: Embroidered speakers without permanent magnets
Name
UIST20-SonoFlex.pdf
Description
Accepted version
Size
7.25 MB
Format
Adobe PDF
Checksum (MD5)
810cdce4ff974b8531aaba8fa7ef9482
Author(s)
Preindl, T
Honnet, C
Pointner, A
Aigner, R
Paradiso, JA
Haller, M
Date Issued
2020
Journal
UIST 2020 - Proceedings of the 33rd Annual ACM Symposium on User Interface Software and Technology
Publisher
ACM
Citation
Preindl, T, Honnet, C, Pointner, A, Aigner, R, Paradiso, JA et al. 2020. "Sonoflex: Embroidered speakers without permanent magnets." UIST 2020 - Proceedings of the 33rd Annual ACM Symposium on User Interface Software and Technology.
Version
Author's final manuscript
Abstract
© 2020 ACM. We present Sonoflex, a thin-form, embroidered dynamic speaker made without using a permanent magnet. Our design consists of two flat spiral coils, stacked on top of each other, and is based on an isolated, thin (0.15 mm) enameled copper wire. Our approach allows for thin, lightweight, and textile speakers and does not require high voltage as in electrostatic speakers. We show how the speaker can be designed and fabricated and evaluate its acoustic properties as a function of manufacturing parameters (size, turn counts, turn spacing, and substrate materials). The experiment results revealed that we can produce audible sound with a broad frequency range (1.5 kHz - 20 kHz) with the embroidered speaker with a diameter of 50 mm. We conclude the paper by presenting several applications such as audible notifications and near-ultrasound communication.
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
10.1145/3379337.3415888
