Acoustic stethoscope 1 Acoustical characteristics Acoustics 1 Article 1 Auscultation 1 Biological organs 1 Change detection 1 Electronic sound 1 Electronic stethoscope 1 Electronics 1 Fourier transform 1 Frequency response 1 Humans 1 Lung sounds 1 Medical professionals 1 Noise abatement 1 Respiratory Sounds 1 Sensitivity indices 1 Stethoscopes 1 Telemedicine 1 abnormal respiratory sound 1 acoustics 1 algorithm 1 artificial intelligence 1 auscultation 1 calculation 1 calibration 1 electronic stethoscope 1 electronics 1 filtration 1