Enhancement of cardiac and respiratory sounds for cellphone reproduction by means of digital sound processing methods

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dc.catalogadorjlo
dc.contributor.authorEchenique Soto, María Belén
dc.contributor.authorGodoy Sánchez, Eduardo Javier
dc.contributor.authorCádiz Cádiz, Rodrigo Fernando
dc.contributor.authorAndia Kohnenkampf, Marcelo Edgardo
dc.date.accessioned2025-03-14T13:13:14Z
dc.date.available2025-03-14T13:13:14Z
dc.date.issued2024
dc.description.abstractTelemedicine’s rising popularity, driven by its convenience and accessibility, faces a challenge in remote physical auscultation, particularly for assessing lung and heart sounds. We propose a smartphone-based tele-auscultation approach for capturing lung and heart sounds, based on pitch-shifting customized for smartphone listening, overcoming the technical obstacle found in the limited accuracy of smartphone speakers for reproducing low-frequency sounds, such as heart sounds. We created a database of heart and lung sounds captured with a smartphone, and then we conducted two evaluations, one with sounds from open-source databases and one with sounds from an in-house database. Pitch-shifting algorithms from PaulStretch and SoundTouch libraries were applied, and validated against original recordings through a web survey, initially using conventional headphones, as a first step towards delivering them through loudspeakers. In the open-source database experiment, 71.6% and 80% of 40 final-year medical students indicated preserved clinical information in respiratory and heart sounds, respectively. In the in-house database experiment, 14 physicians and final-year medical students validated the processed audio samples, revealing that 76.5% and 71% of respiratory and heart sounds, respectively, maintained clinical information. These results suggest the potential use of pitch-shifted sounds in tele-auscultation devices like smartphones. However, further research is essential to understand smartphones’ playback capabilities in a clinical setting.
dc.description.funderANID
dc.description.funderFondecyt
dc.fuente.origenSCOPUS
dc.identifier.doi10.1007/s00779-024-01833-5
dc.identifier.issn1617-4917
dc.identifier.scopusidSCOPUS_ID:85208994187
dc.identifier.urihttps://doi.org/10.1007/s00779-024-01833-5
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/102599
dc.information.autorucEscuela de Ingeniería; Echenique Soto, María Belén; S/I; 1026061
dc.information.autorucEscuela de Medicina; Godoy Sánchez, Eduardo Javier; S/I; 1124129
dc.information.autorucInstituto de Música; Cádiz Cádiz, Rodrigo Fernando; S/I; 4402
dc.information.autorucEscuela de Medicina; Andia Kohnenkampf, Marcelo Edgardo; 0000-0002-1251-5832; 90691
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final856
dc.pagina.inicio845
dc.revistaPersonal and Ubiquitous Computing
dc.rightsacceso restringido
dc.subjectHeart sounds
dc.subjectPitch-shifting
dc.subjectRespiratory sounds
dc.subjectSmartphone
dc.subjectSound enhancement
dc.subjectTelemedicine
dc.subject.ddc610
dc.subject.deweyMedicina y saludes_ES
dc.subject.ods03 Good health and well-being
dc.subject.odspa03 Salud y bienestar
dc.titleEnhancement of cardiac and respiratory sounds for cellphone reproduction by means of digital sound processing methods
dc.typeartículo
dc.volumen28
sipa.codpersvinculados1026061
sipa.codpersvinculados1124129
sipa.codpersvinculados4402
sipa.codpersvinculados90691
sipa.trazabilidadSCOPUS;2024-12-08
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