Perceptual audio processing stethoscope

Lukasz J. Nowak*, Karolina M. Nowak

*Corresponding author for this work

Research output: Contribution to journalLetterAcademicpeer-review

1 Citation (Scopus)
5 Downloads (Pure)


Stethoscopes are used to transmit body sounds related to various physiological processes to ears of a physician, providing basic or supportive information for eventual diagnosis. Unfavorably, the dominant frequency components of most of the auscultation signals are localized close to the lower frequency limits of the human auditory system, restricting the achievable selectivity and specificity. The present study introduces an approach that aims at overcoming the existing limitations. A signal processing scheme utilizing knock rejection, dynamic compressor, and pseudo-stereo synthesizer blocks is described, along with hardware implementation and results of the initial subjective evaluation.
Original languageEnglish
Pages (from-to)1769-1773
JournalJournal of the Acoustical Society of America
Issue number3
Publication statusPublished - Sep 2019
Externally publishedYes

Cite this