Brainwave Frequency Explorer

Frequency Mixer

Delta (0.5 - 4 Hz)

Theta (4 - 8 Hz)

Alpha (8 - 12 Hz)

Beta (12 - 30 Hz)

Gamma (30 - 100 Hz)

Biological Context

Brain energy is not a mystical force, but measurable electrical activity. Neurons communicate via electrical impulses called action potentials. The composite of millions of these signals creates oscillating waves measurable by EEG.

Current Dominant State

Relaxed / Awake

Alpha waves dominate during quiet, resting states with eyes closed.

A synthetic mixture, not an EEG diagnosis

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Read the explanation

The source draws each contribution as sine of frame count times a fixed rate, multiplied by the slider fraction and one quarter of canvas height. For a four hundred pixel canvas, alpha amplitude eighty contributes at most eighty pixels; forty contributes forty. These bars compare that single component maximum, not the combined waveform. The labeled biological frequency ranges are context; the drawing uses radians per animation frame and is not calibrated EEG sampling. Alpha uses zero point zero eight radians per frame, while gamma uses zero point three. One cycle takes two pi divided by that rate: about seventy eight point five four frames for alpha and twenty point nine four for gamma. The bars show those frame counts at four pixels per frame. Frame rate changes actual seconds per cycle. This rendering does not measure electrical activity or establish a cognitive state. The dominant state is selected by the largest slider, using a strict greater-than comparison in delta theta alpha beta gamma order. Alpha eighty and beta thirty select the relaxed awake caption. Raising beta to ninety changes the label to alert focused. The bars compare slider values eighty and ninety at five pixels per point. This is a synthetic display rule, not a diagnosis, measured brain state or validated cognitive classifier.