Ultrathin crystalline-silicon-based strain gauges with deep learning algorithms for silent speech interfaces

Taemin Kim, Yejee Shin, Kyowon Kang, Kiho Kim, Gwanho Kim, Yunsu Byeon, Hwayeon Kim, Yuyan Gao, Jeong Ryong Lee, Geonhui Son, Taeseong Kim, Yohan Jun, Jihyun Kim, Jinyoung Lee, Seyun Um, Yoohwan Kwon, Byung Gwan Son, Myeongki Cho, Mingyu Sang, Jongwoon Shin, Kyubeen Kim, Jungmin Suh, Heekyeong Choi, Seokjun Hong, Huanyu Cheng, Hong-Goo Kang (), Dosik Hwang () and Ki Jun Yu ()
Additional contact information
Taemin Kim: Yonsei University
Yejee Shin: Yonsei University
Kyowon Kang: Yonsei University
Kiho Kim: Yonsei University
Gwanho Kim: Yonsei University
Yunsu Byeon: Yonsei University
Hwayeon Kim: Yonsei University
Yuyan Gao: The Pennsylvania State University
Jeong Ryong Lee: Yonsei University
Geonhui Son: Yonsei University
Taeseong Kim: Yonsei University
Yohan Jun: Yonsei University
Jihyun Kim: Yonsei University
Jinyoung Lee: Yonsei University
Seyun Um: Yonsei University
Yoohwan Kwon: Yonsei University
Byung Gwan Son: Yonsei University
Myeongki Cho: Yonsei University
Mingyu Sang: Yonsei University
Jongwoon Shin: Yonsei University
Kyubeen Kim: Yonsei University
Jungmin Suh: Yonsei University
Heekyeong Choi: Yonsei University
Seokjun Hong: Yonsei University
Huanyu Cheng: The Pennsylvania State University
Hong-Goo Kang: Yonsei University
Dosik Hwang: Yonsei University
Ki Jun Yu: Yonsei University

Nature Communications, 2022, vol. 13, issue 1, 1-12

Abstract: Abstract A wearable silent speech interface (SSI) is a promising platform that enables verbal communication without vocalization. The most widely studied methodology for SSI focuses on surface electromyography (sEMG). However, sEMG suffers from low scalability because of signal quality-related issues, including signal-to-noise ratio and interelectrode interference. Hence, here, we present a novel SSI by utilizing crystalline-silicon-based strain sensors combined with a 3D convolutional deep learning algorithm. Two perpendicularly placed strain gauges with minimized cell dimension (

Date: 2022
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DOI: 10.1038/s41467-022-33457-9

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