Cardiomic

Nossobit Ltda

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About this app

🩺 Cardiomic – Listen to your heart

Cardiomic captures, processes, and analyzes heart sounds using your smartphone’s microphone to extract BPM and metrics derived from RR intervals, displaying real-time visualizations that help users observe their cardiac rhythm and heart rate variability (HRV).

Built upon phonocardiogram (PCG) principles, Cardiomic transforms your smartphone into an acoustic window to your heart. Instead of electrical signals like an ECG, a phonocardiogram represents the sound of each heartbeat — the familiar lub-dub — revealing the mechanical rhythm of your heart valves. This unique approach lets you see and hear your own heartbeat, bringing together sound, rhythm, and emotion in a single experience.

Cardiomic bridges science and awareness, turning complex cardiac data into a personal experience of sound and balance. Built upon principles of biomedical signal analysis, it brings laboratory-level insight into your daily life — helping you monitor stress, recovery, and focus. By listening to your own heartbeat, you rediscover presence: every lub-dub becomes a reminder of calm, coherence, and life itself.

⚙️ Main Features:
• Heart sound detection using only your smartphone microphone — no sensors or wearables required.
• Real-time visualization of BPM, RR intervals, and HRV metrics.
• Acoustic signal analysis based on phonocardiogram (PCG) principles.
• Waveform rendering that reflects the intensity and timing of S1 and S2 peaks.
• Stress balance and relaxation insights through HRV-based biofeedback.
• Clean, minimalist design inspired by classic ECG and PCG paper aesthetics.
• Local processing — your recordings remain private and never leave your device.

🧠 Technology Overview:
Cardiomic uses advanced digital signal processing (DSP) algorithms to extract the subtle acoustic vibrations generated by your heartbeat. The app identifies and measures the time between peaks (RR intervals), allowing it to estimate heart rate variability (HRV) — a scientifically recognized indicator of stress, recovery, and autonomic balance.

Each session produces a unique phonocardiogram waveform that lets you visualize how your heart responds to breathing, emotions, and daily rhythm. Over time, these visual patterns can help you understand how your body adapts to relaxation, fatigue, and focus.

🩵 How to use Cardiomic:
1. Sit comfortably in a quiet environment.
2. Hold the phone’s microphone close to your chest — ideally over the left side, near your heart.
3. Press the record button and remain still for 30 to 60 seconds.
4. Watch as your phonocardiogram appears in real time, showing each heartbeat’s waveform.
5. Explore your BPM, RR intervals, and HRV trends as you breathe naturally.

The app detects your heart’s rhythm acoustically, so environmental silence and stable phone contact improve accuracy. For the best signal, avoid movement and external noise.

💬 Intended Use:
Cardiomic is designed for wellness, relaxation, and self-awareness. It is not a medical device and does not provide medical advice, diagnosis, or treatment. All data and visualizations are intended for educational and personal insight purposes only.

⚠️ Important Disclaimer

Cardiomic is not a medical device.
It does not measure heart health, does not provide medical accuracy, and must not be used for diagnosis, monitoring health conditions, or interpreting physical symptoms.
All information is for personal, non-medical use only.
If you need precise physiological measurements or have concerns about your health, please consult a qualified healthcare professional.

What’s new

• Initial release of Cardiomic
• Real-time heartbeat sound waveform
• Wellness-focused BPM, RR, and HRV trends
• Clean, calming interface
• Local on-device processing for privacy