Sonoflex: Embroidered speakers without permanent magnets

Thomas Preindl, Cedric Honnet, Andreas Pointner, Roland Aigner, Joseph A. Paradiso, Michael Haller

Publikation: Beitrag in Buch/Bericht/TagungsbandKonferenzbeitragBegutachtung

9 Zitate (Scopus)

Abstract

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.

OriginalspracheEnglisch
TitelUIST 2020 - Proceedings of the 33rd Annual ACM Symposium on User Interface Software and Technology
Herausgeber (Verlag)Association for Computing Machinery, Inc
Seiten675-685
Seitenumfang11
ISBN (elektronisch)9781450375146
DOIs
PublikationsstatusVeröffentlicht - 20 Okt. 2020
Veranstaltung33rd Annual ACM Symposium on User Interface Software and Technology, UIST 2020 - Virtual, Online, USA/Vereinigte Staaten
Dauer: 20 Okt. 202023 Okt. 2020

Publikationsreihe

NameUIST 2020 - Proceedings of the 33rd Annual ACM Symposium on User Interface Software and Technology

Konferenz

Konferenz33rd Annual ACM Symposium on User Interface Software and Technology, UIST 2020
Land/GebietUSA/Vereinigte Staaten
OrtVirtual, Online
Zeitraum20.10.202023.10.2020

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