LubDubDecoder: Bringing Micro-Mechanical Cardiac Monitoring to Hearables
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arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866917388738363392 |
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| author | Zhang, Siqi Zhang, Xiyuxing Vu, Duc Qiang, Tao Palacios, Clara Zhu, Jiangyifei Wang, Yuntao Goel, Mayank Chan, Justin |
| author_facet | Zhang, Siqi Zhang, Xiyuxing Vu, Duc Qiang, Tao Palacios, Clara Zhu, Jiangyifei Wang, Yuntao Goel, Mayank Chan, Justin |
| contents | We present LubDubDecoder, a system that enables fine-grained monitoring of micro-cardiac vibrations associated with the opening and closing of heart valves across a range of hearables. Our system transforms the built-in speaker, the only transducer common to all hearables, into an acoustic sensor that captures the coarse "lub-dub" heart sounds, leverages their shared temporal and spectral structure to reconstruct the subtle seismocardiography (SCG) and gyrocardiography (GCG) waveforms, and extract the timing of key micro-cardiac events. In an IRB-approved feasibility study with 25 users, our system achieves correlations of 0.88-0.95 compared to chest-mounted reference measurements in within-user and cross-user evaluations, and generalizes to unseen hearables using a zero-effort adaptation scheme with a correlation of 0.91. Our system is robust across remounting sessions and music playback. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_10764 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | LubDubDecoder: Bringing Micro-Mechanical Cardiac Monitoring to Hearables Zhang, Siqi Zhang, Xiyuxing Vu, Duc Qiang, Tao Palacios, Clara Zhu, Jiangyifei Wang, Yuntao Goel, Mayank Chan, Justin Human-Computer Interaction We present LubDubDecoder, a system that enables fine-grained monitoring of micro-cardiac vibrations associated with the opening and closing of heart valves across a range of hearables. Our system transforms the built-in speaker, the only transducer common to all hearables, into an acoustic sensor that captures the coarse "lub-dub" heart sounds, leverages their shared temporal and spectral structure to reconstruct the subtle seismocardiography (SCG) and gyrocardiography (GCG) waveforms, and extract the timing of key micro-cardiac events. In an IRB-approved feasibility study with 25 users, our system achieves correlations of 0.88-0.95 compared to chest-mounted reference measurements in within-user and cross-user evaluations, and generalizes to unseen hearables using a zero-effort adaptation scheme with a correlation of 0.91. Our system is robust across remounting sessions and music playback. |
| title | LubDubDecoder: Bringing Micro-Mechanical Cardiac Monitoring to Hearables |
| topic | Human-Computer Interaction |
| url | https://arxiv.org/abs/2509.10764 |