Cardiomic Blog
Observe your heart — not just measure it
Understand how your heart actually behaves over time through sound, rhythm, and variation.
Heart Sounds
Learn how your heart produces sound — and how those signals change with your body.
Beat-to-Beat Variation
Explore how timing between beats reveals patterns you can’t see in a single measurement.
Your Patterns Over Time
Understand how your heart behaves across sessions — not just in isolated moments.
The simplest way to start:
record a short session and listen.
Explore how your heart behaves
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Why Your Phone Matters When Recording Heart Sounds
The real user tension Two people can use Cardiomic correctly and still get different recording quality. One phone may capture a clear heart sound… Read more
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The Problem Cardiomic Exists to Solve
A missing instrument for everyday observation Cardiomic exists to solve a simple but neglected problem: most people have no practical way to listen to,… Read more
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How Cardiomic Can Be Useful When Stress or Anxiety Makes Attention Hard
Real user tension Stress and anxiety can make attention hard to hold. Thoughts move quickly. The body may feel tense or activated. You may… Read more
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Why Recording Again Tomorrow Makes Comparison More Useful
Comparison becomes useful when you record again One of the easiest mistakes in self-observation is to expect too much from a single recording. A… Read more
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Practical Ways to Use Cardiomic for Everyday Observation
Everyday use becomes more valuable when the benefit is concrete Cardiomic becomes easier to understand when its value is described through practical use. The… Read more
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The Immediate Value of Listening to Your Own Heart
A simple act with immediate value One of the simplest ways to begin using Cardiomic is also one of the most useful: choose a… Read more
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How to Use Cardiomic Correctly
What the app does Cardiomic uses your smartphone’s microphone to capture subtle acoustic signals from the body and observe heartbeat-related patterns. Because it depends… Read more
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Cardiomic as a Pocket Laboratory: Interface Design for Verifiable Heart Observation
From Interface to Instrument Most apps are designed for interaction. Cardiomic is built for observation — a distinction that shapes every design decision. Rather… Read more
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How Cardiomic Makes Heart Data Observable, Verifiable, and Transparent
Observing the Signal, Not Just the Result Most digital health apps present results as finished numbers: a BPM value, a stress score, a readiness… Read more
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What Cardiomic Is — and What It Is Not
Cardiomic is a smartphone-based heart observation app. It uses the phone’s microphone to capture heart sounds, processes the signal locally on the device, and… Read more
Observe the heart more deeply
Explore Cardiomic and learn more about heart sounds, rhythm patterns, and physiological signals.