Interactive Demo

See the SDK in Action

Explore signal processing and sleep staging demonstrations powered by the Aika SDK.

🧬

Sleep Staging

Real-time

SDK FSM provides 4-class sleep staging (Wake / Light / Deep / REM) updated every 30 seconds via SleepStageListener.onlineStage().

// Subscribe to real-time sleep stage events
appSDK.setSleepStageListener(new SleepStageListener() {
    @Override
    public void onlineStage(int stage) {
        // 0=Deep  1=Light  2=REM  3=Wake
        runOnUiThread(() -> updateStageUI(stage));
    }
});

Simulated Hypnogram

Wake

REM

22%

Light

45%

Deep

25%

🔊

Neuroacoustic Modulation

CLAS

Closed-Loop Acoustic Stimulation (CLAS) locks audio pulses to the UP phase of slow oscillations (0.5–1 Hz), enhancing deep sleep SWA.

// Phase-locked stimulation trigger
neuralForegroundService.onSlowWaveUpPhase((phaseAngleRad) -> {
    float anticipationMs = 42f; // BLE latency compensation
    float delay = computeDelay(phaseAngleRad, anticipationMs);
    audioEngine.schedulePulse(delay, algoParams.stimulusVolumeDb);
});

Phase Estimation (ecHT)

📊

EEG Feature Extraction

Real-time delta / theta / alpha / beta band power via RealDataListener.onRealTimeEegBand().

appSDK.setRealDataListener(new RealDataListener() {
    @Override
    public void onRealTimeEegBand(float delta, float theta,
                                   float alpha, float beta) {
        // All values normalized 0-1
        updateBandPowerUI(delta, theta, alpha, beta);
    }
});

Sample Band Powers (N3 epoch)

Delta

82%

Theta

31%

Alpha

12%

Beta

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