From heart sounds to rhythm insights
Cardiomic uses your smartphone microphone to capture heart sounds and extract rhythm information from the recording.
A simple recording session
Cardiomic works by recording acoustic heart signals with the phone placed near your chest. During the session, the app detects heartbeat timing and estimates rhythm-related metrics such as BPM and RR intervals.
The goal is not only to count beats, but to help reveal patterns in the rhythm of the heart through a simple and accessible recording process.
Step 1 — Place the phone near your chest
Hold the smartphone gently against your chest, close to the heart area, with the microphone positioned to capture the sound as clearly as possible.
A quiet environment helps improve signal quality. Reducing movement and maintaining stable contact during the recording also helps produce a better measurement.
Step 2 — Record heart sounds
Start a session and remain as still as possible while Cardiomic records the heart sounds. The app processes the captured audio and identifies heartbeat events from the acoustic signal.

Recording heart sounds and translating them into a visual representation of the cardiac rhythm.
Each session creates a short physiological snapshot based on the timing and structure of the recorded cardiac rhythm.
Step 3 — Explore your session insights
After the recording, Cardiomic presents a set of metrics and interpretations based on the session. These may include heart rate, RR intervals, Cardiac Progress Score, breathing estimation, and rhythm-related insights.
Instead of showing only a single BPM value, the app helps you observe broader rhythm patterns from the recorded signal.
What Cardiomic analyzes
- Heart sounds captured by the smartphone microphone
- Heartbeat timing extracted from the signal
- BPM estimation
- RR interval patterns
- Session-based rhythm insights
This creates a more signal-centered view of the heart than a conventional heart rate counter.
Why signal quality matters
Cardiomic depends on the quality of the recorded heart sound. Background noise, body movement, weak microphone positioning, or unstable contact with the chest can affect the session.
For best results, try to record in a quiet place, keep the phone stable, and avoid talking or moving during the measurement.
Designed as an observation tool
Cardiomic was designed as a digital instrument to observe heart signals. It helps make cardiac rhythm patterns more visible and understandable through accessible smartphone-based measurement.
The app is intended for informational and educational use, helping users explore physiological patterns that would otherwise remain hidden in raw signals.
Important note
Cardiomic is not a medical diagnosis tool and does not replace professional healthcare evaluation. If you have concerns about your heart health, seek advice from a qualified healthcare professional.

