Live Spectrum Analyzer
Real-time FFT-based spectrum analysis that runs at up to 8× overlap per FFT window. Visualize mechanical keyboard acoustics with scientific precision.
Key Capabilities
- ✓FFT-based real-time visualization
- ✓Selectable resolution (1024–16384 FFT size)
- ✓Frequency range: 20 Hz–20 kHz (adjustable)
- ✓Pinch-to-zoom for frequency range control
- ✓Cursor readout showing Hz + dBFS at any frequency
- ✓Fullscreen mode for detailed analysis
- ✓Settings overlay without covering main display
- ✓Logarithmic frequency scale for accurate representation
Display Modes
Bars
420 logarithmically-spaced bars with smooth animations
Line
Filled area curve for smooth frequency visualization
Overlays & Visualization
Average Curve
EMA trail showing smoothed frequency response over time
Peak Hold
Configurable hold time (Off, 1s, 5s, 10s, 15s, ∞)
Max Hold Trace
White line showing cumulative maximum per bin
Waterfall
Spectrogram scrolling upward showing frequency changes over time