GPU Audio Noise Waterfall
Web Audio FFT → WebGL2 GPU display
Transceiver · Audio
12.000 kHz
Live audio view
Power meter · Audio level−∞ dBFS
−60−45−30−150 dBFS
Band presets
Band presets relabel the audio spectrum as a simulated RF view. No radio hardware is connected.
RadioWave73 · Spectrum & waterfall
Start audio to see the spectrum
Click or drag to tune · Time ↓
The audio is generated in the browser. AnalyserNode calculates its FFT; each FFT row is added to a history texture, which WebGL2 renders on the GPU. Bandwidth changes the visible frequency span. The tuning marker selects a frequency for inspection; it does not filter the audio. This is an audio demonstration, not a real RF receiver.