From Profiling to Parameterization: Physics-Guided Acoustic Eavesdropping via Smartphone Accelerometers

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arXiv:2607.25461v1 Announce Type: new Abstract: We present LEAKFORGE, a device-agnostic framework that converts cross-device accelerometer eavesdropping into a physics-guided data-generation problem. Crucially, device-specific leakage is not arbitrary; its dominant variation lies within a constrained family of audio-to-accelerometer transfer functions. LEAKFORGE samples this family to synthesize large-scale, device-diverse accelerometer traces from ordinary speech, explicitly modeling electrome