Zero-Crossing Rate & Audio Features
Generate signals, compute ZCR, RMS energy, and spectral features — visualize in real time
Signal Generator
Signal type:
Pure Sine
Square Wave
Sawtooth
White Noise
Chirp (freq sweep)
Sine + Noise
AM Modulated
Frequency (Hz):
440
Amplitude:
0.80
Noise mix:
0.10
Window size (samples):
512
Regenerate
Play
Live Metrics
ZCR:
—
crossings/frame
RMS:
—
Spec. Centroid:
—
Hz
Spec. Rolloff:
—
Hz
Spec. Flatness:
—
ZCR ≈ frequency for sine waves
High ZCR → noise-like; Low ZCR → tonal
van Hove singularities appear in DOS