Smart Electronic Stethoscope with Digital Filtering and Phonocardiogram (PCG)
Piezoelectric contact microphone amplifying faint heart murmurs with digital bandpass filters and live PCG wave visualization.
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Project Technical Overview
Upgrades traditional acoustic stethoscopes. A shielded piezoelectric contact chest piece captures low-frequency heart sounds (S1, S2, murmurs). Onboard digital IIR bandpass filters eliminate background speech and lung friction noise, streaming real-time Phonocardiogram waveforms over Bluetooth.
Read the foundational IEEE conference research paper, citations, and algorithmic architecture for this project.