Sonoflex: Embroidered speakers without permanent magnets
© 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, an...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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ACM
2022
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| Online Access: | https://hdl.handle.net/1721.1/137107.2 |
| _version_ | 1811073670076956672 |
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| author | Preindl, T Honnet, C Pointner, A Aigner, R Paradiso, JA Haller, M |
| author2 | Massachusetts Institute of Technology. Media Laboratory |
| author_facet | Massachusetts Institute of Technology. Media Laboratory Preindl, T Honnet, C Pointner, A Aigner, R Paradiso, JA Haller, M |
| author_sort | Preindl, T |
| collection | MIT |
| description | © 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. |
| first_indexed | 2024-09-23T09:36:43Z |
| format | Article |
| id | mit-1721.1/137107.2 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:36:43Z |
| publishDate | 2022 |
| publisher | ACM |
| record_format | dspace |
| spelling | mit-1721.1/137107.22023-07-05T18:14:37Z Sonoflex: Embroidered speakers without permanent magnets Preindl, T Honnet, C Pointner, A Aigner, R Paradiso, JA Haller, M Massachusetts Institute of Technology. Media Laboratory © 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. 2022-11-22T17:33:48Z 2021-11-02T16:50:46Z 2022-11-22T17:33:48Z 2020 2021-06-25T17:58:26Z Article http://purl.org/eprint/type/ConferencePaper https://hdl.handle.net/1721.1/137107.2 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. en 10.1145/3379337.3415888 UIST 2020 - Proceedings of the 33rd Annual ACM Symposium on User Interface Software and Technology Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf ACM ACM |
| spellingShingle | Preindl, T Honnet, C Pointner, A Aigner, R Paradiso, JA Haller, M Sonoflex: Embroidered speakers without permanent magnets |
| title | Sonoflex: Embroidered speakers without permanent magnets |
| title_full | Sonoflex: Embroidered speakers without permanent magnets |
| title_fullStr | Sonoflex: Embroidered speakers without permanent magnets |
| title_full_unstemmed | Sonoflex: Embroidered speakers without permanent magnets |
| title_short | Sonoflex: Embroidered speakers without permanent magnets |
| title_sort | sonoflex embroidered speakers without permanent magnets |
| url | https://hdl.handle.net/1721.1/137107.2 |
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