Pitch Shift
pitch-synchronous granular · F0 moves, words stay · jitter makes it non-reversible WHO
BYPASS
Processing chain signal flows top → bottom
Formant Shift
LPC all-pole warp · F1–F3 move exactly · f3+ detaches speaker-tract cues WHO
BYPASS
Band Limit
telephone carve · tilt, crush & G.711 μ-law channel WHOWHAT
BYPASS
Noise Vocoder
mixed noise + pitch-locked harmonic excitation · mod-LP is the Shannon knob WHATWHO
BYPASS
Spectral Scramble
time-varying segment permutation · crossfaded re-shuffles defeat brute force WHAT
BYPASS
PERM MAP · lo ↓ / hi ↑
chain
01 → 02 →
03 → 04 →
05
· 2048-pt FFT · 75% overlap · LPC + YIN · single worklet