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\n\n \n \n Optical Waveform Oscilloscope (530nm In-Ear PPG)\n
\n \n Fs = 100 Hz | Window: 4.0s\n
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\n Peak Detection State
\n Locked High-Fidelity Signal
\n Optimal Seal
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\n\n Computed Heart Rate
\n 135 BPM
\n Rolling 4-Beat Peak Analysis
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\n\n Signal Quality Score
\n 88.4%
\n Noise & Coupling Weighted
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\n\n Signal-to-Noise Ratio (SNR)
\n 14.2 dB
\n Optical Band vs Artifact
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\n Acoustic Coupling Pressure
\n 12.5 kPa
\n Cartilaginous Concha Grip
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\n\n Workout & Fit Presets
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\n\n \n \n 12.5 kPa\n
\n \n \n 1.0 kPa (Loose slip)\n 12.5 kPa (Optimal)\n 25.0 kPa (Tight canal)\n
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\n\n \n \n 0.20\n
\n \n \n 0.00 (Stationary)\n 0.50 (Brisk run)\n 1.00 (Violent sprint)\n
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\n\n \n \n 135 BPM\n
\n \n \n 50 BPM (Basal)\n 135 BPM (Aerobic)\n 200 BPM (Peak)\n
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\n \n Biometric Ear Canal Sensing: Mashable highlighted fitness earbuds measuring heart rate via optical photoplethysmography (PPG). Because the human auditory canal contains dense capillary beds protected by cartilage, green LED light (530nm) captures strong pulsatile blood absorption. However, foot strikes and jaw movement cause micro-shifts in acoustic seal pressure, inducing baseline wandering and motion artifacts that the peak detection filter must continuously isolate.\n
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\n Ready for export
\n \n Telemetry logs include raw 100Hz optical photodiode voltage traces, detected systolic peaks, SNR metrics, and fit diagnostics.\n
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