One case at a time

Build the signal you need

Start from a proven recipe, add physiology and interference, then render a short, real preview.

Starting point

Choose the closest signal; every setting stays editable.

Recipe

Case basics

Set the time scale and resting rhythm.

Case name Duration seconds Sample rate Hz Base heart rate bpm Natural beat variation seconds Reproducible seed

Randomize this case's base heart rateChoose one deterministic rate inside these bounds when the case is generated. For a change during the signal, add a rhythm episode below.

Heart-rate dynamics

Use spectral HRV when frequency-domain behaviour matters.

Add spectral HRVRequires a five-minute case; Synsigra will extend shorter cases.

ECG morphology

Shape the P wave, ventricular complex, repolarization, and their timing.

Customize ECG morphologyUses the generator's direct engineering controls. Values are global baseline morphology, before any timed pathology episode.

Beats and rhythm

Add premature beats, a timed rhythm change, or another supported ECG condition.

Periodic ectopy Every N beats Condition intensity % 80%

Add a rhythm episodeSwitch away from the baseline rhythm for a defined interval. The current generator does not combine an episode with periodic ectopy. Additional ECG condition

Noise and artifacts

Layer deterministic interference over all or part of the case.

PPG channel

Add a synchronized optical pulse beside the ECG.

Add PPGThe preview will include every generated optical channel.

What will this test?

These outputs follow the case into a saved custom pack.

Advanced scenario JSON

Every core field remains available. JSON edits round-trip into the human controls where represented.

No preview yetOnly an explicit Apply renders data.

Amplitude

Spacing 100%

Position

Keep this case

Render a valid preview first. Saving never uses unrendered edits.

Preview ready

Keep this case