Electronic digital stethoscope and uses thereof

A digital stethoscope, comprising:

• a chest piece enclosing a diaphragm;
• a first microphone configured to acquire a digital auscultation audio signal through the diaphragm and a second microphone configured to acquire an ambient audio signal;
• and
• a housing coupled to the chest piece and enclosing processing circuitry,
• wherein the processing circuitry is configured to:
• generate and output an active noise cancelation signal based on the ambient audio signal,
• apply a gain to the digital auscultation audio signal,
• apply a digital filter to the digital auscultation audio signal, and
• stream the digital auscultation audio signal to external processing circuitry while the digital auscultation audio signal is acquired by the first microphone, and
• wherein the external processing circuitry is configured to extract a feature of the digital auscultation audio signal and classify the digital auscultation audio signal as including a heart murmur based on the extracted feature.

A digital stethoscope, comprising:

• a chest piece enclosing a diaphragm;
• a first microphone configured to acquire a digital auscultation audio signal through the diaphragm and a second microphone configured to acquire an ambient audio signal;
• and
• a housing coupled to the chest piece and enclosing processing circuitry,
• wherein the processing circuitry is configured to:
• generate and output an active noise cancelation signal based on the ambient audio signal,
• apply a gain to the digital auscultation audio signal,
• apply a digital filter to the digital auscultation audio signal, and
• stream the digital auscultation audio signal to external processing circuitry while the digital auscultation audio signal is acquired by the first microphone, and
• wherein the external processing circuitry is configured to detect wheezing based on the digital auscultation audio signal.