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Hauptverfasser: Dong, Xuefu, Xu, Liqiang, He, Lixing, Han, Zengyi, Christofferson, Ken, Chen, Yifei, Taya, Akihito, Nishiyama, Yuuki, Sezaki, Kaoru
Format: Preprint
Veröffentlicht: 2025
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Online-Zugang:https://arxiv.org/abs/2512.16518
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author Dong, Xuefu
Xu, Liqiang
He, Lixing
Han, Zengyi
Christofferson, Ken
Chen, Yifei
Taya, Akihito
Nishiyama, Yuuki
Sezaki, Kaoru
author_facet Dong, Xuefu
Xu, Liqiang
He, Lixing
Han, Zengyi
Christofferson, Ken
Chen, Yifei
Taya, Akihito
Nishiyama, Yuuki
Sezaki, Kaoru
contents Silent speech interface (SSI) enables hands-free input without audible vocalization, but most SSI systems do not verify speaker identity. We present HEar-ID, which uses consumer active noise-canceling earbuds to capture low-frequency "whisper" audio and high-frequency ultrasonic reflections. Features from both streams pass through a shared encoder, producing embeddings that feed a contrastive branch for user authentication and an SSI head for silent spelling recognition. This design supports decoding of 50 words while reliably rejecting impostors, all on commodity earbuds with a single model. Experiments demonstrate that HEar-ID achieves strong spelling accuracy and robust authentication.
format Preprint
id arxiv_https___arxiv_org_abs_2512_16518
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Poster: Recognizing Hidden-in-the-Ear Private Key for Reliable Silent Speech Interface Using Multi-Task Learning
Dong, Xuefu
Xu, Liqiang
He, Lixing
Han, Zengyi
Christofferson, Ken
Chen, Yifei
Taya, Akihito
Nishiyama, Yuuki
Sezaki, Kaoru
Human-Computer Interaction
Audio and Speech Processing
Silent speech interface (SSI) enables hands-free input without audible vocalization, but most SSI systems do not verify speaker identity. We present HEar-ID, which uses consumer active noise-canceling earbuds to capture low-frequency "whisper" audio and high-frequency ultrasonic reflections. Features from both streams pass through a shared encoder, producing embeddings that feed a contrastive branch for user authentication and an SSI head for silent spelling recognition. This design supports decoding of 50 words while reliably rejecting impostors, all on commodity earbuds with a single model. Experiments demonstrate that HEar-ID achieves strong spelling accuracy and robust authentication.
title Poster: Recognizing Hidden-in-the-Ear Private Key for Reliable Silent Speech Interface Using Multi-Task Learning
topic Human-Computer Interaction
Audio and Speech Processing
url https://arxiv.org/abs/2512.16518