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2. Stethoscope - Wikipedia

   en.wikipedia.org/wiki/Stethoscope

   An electronic stethoscope (or stethophone) overcomes the low sound levels by electronically amplifying body sounds. However, amplification of stethoscope contact artifacts, and component cutoffs (frequency response thresholds of electronic stethoscope microphones, pre-amps, amps, and speakers) limit electronically amplified stethoscopes ...

3. Computer-aided auscultation - Wikipedia

   en.wikipedia.org/wiki/Computer-aided_auscultation

   Electronic stethoscopes (also digital stethoscopes) convert acoustic sound waves into digital electrical signals. These signals are then amplified by means of transducers and currently reach levels up to 100 times higher than traditional acoustic stethoscopes.

4. Audification - Wikipedia

   en.wikipedia.org/wiki/Audification

   Audification is an auditory display technique for representing a sequence of data values as sound. By definition, it is described as a "direct translation of a data waveform to the audible domain." [1] Audification interprets a data sequence and usually a time series, as an audio waveform where input data are mapped to sound pressure levels.

5. Auscultation - Wikipedia

   en.wikipedia.org/wiki/Auscultation

   Laënnec's contributions were refining the procedure, linking sounds with specific pathological changes in the chest, and inventing a suitable instrument (the stethoscope) to mediate between the patient's body and the clinician's ear. Auscultation is a skill that requires substantial clinical experience, a fine stethoscope and good listening ...

6. Pinard horn - Wikipedia

   en.wikipedia.org/wiki/Pinard_horn

   A Pinard horn is a type of stethoscope used to listen to the heart rate of a fetus during pregnancy. It is a hollow horn, often made of wood or metal, about 200 millimetres (7.9 in) long. It functions similarly to an ear trumpet by amplifying sound. The user holds the wide end of the horn against the pregnant woman's abdomen, and listens ...

7. Hearing aid - Wikipedia

   en.wikipedia.org/wiki/Hearing_aid

   An omnidirectional microphone amplifies sounds equally from all directions. In contrast, a directional microphone amplifies sounds from one direction more than sounds from other directions. This means that sounds originating from the direction the system is steered toward are amplified more than sounds coming from other directions.