A proven cardiac signal platform built for medical use
Stethophone Pro is an electronic stethoscope that enables detection, amplification, filtering, and transmission of auscultation sound data (heart and lungs), whereby a clinician at one location can listen to the auscultation sounds of a patient acquired on site or at a different location. Stethophone Pro is intended for use on adult patients. Stethophone Pro is not intended for self-diagnosis and not intended to be used as a sole means of diagnosis. Stethophone Pro can be used in clinical and nonclinical environments.
For Rx-only: Stethophone Pro is intended to provide decision support to clinicians in their evaluation of patients' heart sounds. The software analyzes heart sounds and phonocardiograms and can automatically detect murmurs that may be present, sound timing and character, including S1, S2, and the absence of a heart murmur. The interpretations of heart sounds offered by the software are not diagnoses and are meant only to provide decision support to the clinician, who may use the result in conjunction with their own evaluation and clinical judgment.
For OTC: When used without access to the automatic analysis feature or under supervision of healthcare professional, Stethophone Pro is also intended to be used by lay users.
What is Computational Heart Assessment?
Heart sounds provide a rich source of information about cardiac function. Variations in frequency, timing, and amplitude can reveal signs of structural and rhythmic abnormalities that may be difficult to recognize through conventional auscultation.
Stethophone Pro uses advanced computational analysis to capture, enhance, and interpret these signals, transforming them into structured clinical information. This enables clinicians to recognize subtle acoustic patterns, including those potentially associated with early or intermittent cardiac abnormalities.
Trained on millions of heart cycles
Stethophone Pro models are trained on millions of heart cycles reviewed by experts in phonoscopy and structural disease. This combination of clinical expertise and data scale produces outputs that are reproducible, evidence-based, and clinically interpretable. Development focuses on sensitivity for early recognition while maintaining the specificity clinicians need to make confident decisions. Each model iteration is evaluated against expert-labeled datasets and independent validation studies, ensuring that the versions reaching the field meet clinical standards for accuracy and reliability.
Published Research
Test characteristics of smartphone-enabled phonoscopy with artificial intelligence–enhanced detection of cardiovascular disease.*
Int J Med Sci Innov Res. 2025;10(5):18–32. Available from: www.ijmsir.com
All Murmurs
MS
MR
AS
TR
Clinical confidence starts with the data
Every feature of Stethophone Pro is built around a single principle: reliability in real-world care. Development is guided by collaboration with global leaders in diagnostics and structural disease.
The platform’s bioacoustic models are trained and validated on diverse clinical datasets, supporting consistent performance across patient populations, comorbidities, and care environments. The underlying dataset includes millions of heart sounds corresponding to conditions confirmed by echocardiography.
This breadth ensures that model behavior is grounded in clinically confirmed variation rather than narrow or idealized samples, improving both sensitivity and specificity in general practice.
Full frequency signal capture and analysis
Stethophone uses patented bioacoustic technology to capture and enhance heart sounds with high fidelity, supporting both clinical listening and automated cardiac sound analysis.
Recordings undergo automated quality checks before computational assessment. Advanced signal processing amplifies heart sounds while identifying and reducing loud artifacts that can interfere with listening and analysis.
Together, these capabilities improve sound clarity while preserving the integrity of the underlying cardiac signal, ensuring that both clinical listening and computational analysis retain the acoustic information necessary for accurate assessment.
improvement in diagnostic audio quality
The leading medical audio filtering
Traditional listening is limited by human hearing and makes certain frequency ranges difficult to perceive simultaneously. This has historically introduced subjectivity into decision making.
Stethophone Pro removes this barrier through patented signal processing that preserves medical accuracy and nuance. The audio presented to clinicians is clear and balanced, making subtle structural or rhythmic findings easier to confirm and communicate.
Computational heart assessment, built for clinical collaboration
The system provides immediate, high-sensitivity murmur detection capable of identifying soft or faint signals often associated with early to moderate structural disease. Murmur indicators are mapped directly onto synchronized visual playback tools that show both audio and graphic representations of the heart cycle.
Intervals, rhythm features, and arrhythmia patterns are analyzed simultaneously and displayed in a clinically intuitive format. Outputs are securely shareable to support provider to provider collaboration or remote patient transmission, enabling faster review and more coordinated care.
Peak sensitivity and specificity
exceeding
Cardiac cycle analysis accuracy exceeding
Designed to work anywhere patients are seen
Designed to work at scale
Stethophone Pro can be deployed to thousands of clinicians, frontline workers, or patients at home with a simple download.
These capabilities allow health systems to introduce structured cardiac data at scale without the operational or infrastructure demands associated with traditional devices.
Speak with a Stethophone Pro specialist about a solution designed for your organization.