EEG amplitude 1–40 Hz
—counts RMS
Signal magnitude in raw ADC units
A WINDOW INTO YOUR SIGNAL
Live EEG & motion
Watch the waveform, explore its frequency bands, and investigate head movement.
SereniBrain TH21AWaiting for the headband…
Connecting to the local reader…
Relative alpha 8–12 Hz
—%
Share of 4–30 Hz power · not a focus score
Signal quality
Waiting
Keep the headband powered on and nearby.
— Hz— V battery0 gaps
TIME DOMAIN
EEG waveform
Waiting for samples
MOVEMENT EXPLORER
Motion candidates
Three changing fields are visible. Sensor type, axes, units, and physical position are not yet decoded.
A / B relative to center
A —
B —
C —
Look down / up · Tilt left / right · Turn left / right
Two passes, with the second in reverse order. Return to center between every movement.
Hold each prompt for 6 seconds. The first 2 seconds allow settling; the last 4 supply the readings.
FREQUENCY DOMAIN
Raw power spectrum
SPECTRAL BALANCE
Frequency bands
Relative power over a two-second window. Movement and muscle activity also affect these values.
GUIDED MOTION CHECK
Center — hold still
Move gently when prompted. Return to the same center position each time.
Get into position
Next: look down
6seconds
Movement check results
Changes below subtract the average of the neighboring center readings. Compare the signs and sizes across passes and opposite directions. These are raw field counts, not calibrated axes or angles.
Held readings & stability
IQR is the spread of the middle 50% of readings during a hold. Large spreads mean the field was less steady. A comparison needs at least 50 settled packets in the movement and each neighboring center.
Stream details & recording
No recording yet