A grid of bars pulses to a procedural frequency simulation, mimicking a real-time audio spectrum analyzer, with neon gradient coloring and faux-bloom glow. Real equalizers split incoming audio into discrete frequency bins using a Fast Fourier Transform (FFT), then display each bin's magnitude in decibels (dB) as a bar — common consumer EQs use 10 or 31 bands spanning the audible range of roughly 20 Hz to 20 kHz.
Here each bar's height is instead driven by layered sine waves plus a radial "bass drop" pulse and light noise, approximating how bass (low, wide bars) and treble (fast, jittery bars) behave differently across a spectrum. Bar color sweeps from cyan through blue to magenta as amplitude rises, similar to how hardware VU meters shift from green to red near peak levels.
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