STFT Live Filter & Vocoder Router
Precision Spectral DSP • Constant Overlap-Add • Direct-Interval Masking
Step 1 — Engine Mode & Output Sinks
đ¤ Live Mic Filter
STFT direct-bin filtering
đ Carrier Only
Parametric noise synthesizer
đ¤ Vocoder
Mic formants modulate synth
đď¸ Mic + Carrier
Summed live speech + synth
đ AuraFlow Water
Stochastic stream carrier
đď¸ Mic + Water
Mic voice + AuraFlow carrier
Acoustic Safety:
Headphones required during microphone modes to prevent feedback oscillations.
Hardware Audio Sink
âť Refresh Devices
Default Destination Device
Microphone Gain
120%
Master Volume
70%
Dry / Wet Crossfade
100% W
Master Duty-Cycle Silence Gate
Enable Gate
Play Window (Sec)
3.0s
Silence Min (Sec)
1.0s
Silence Max (Sec)
4.0s
Gate State
Bypassed
Advanced STFT Engine Parameters
STFT FFT Size (N)
N = 512 (~86.1 Hz resolution)
N = 1024 (~43.1 Hz resolution)
N = 2048 (~21.5 Hz resolution)
N = 4096 (~10.8 Hz resolution)
N = 8192 (~5.4 Hz resolution)
Overlap Ratio (Hop H)
75% Overlap (H = N/4)
87.5% Overlap (H = N/8)
Analysis/Synthesis Window
4-Term Blackman-Harris (-92 dB Sidelobes)
Hann Window (-31.5 dB Sidelobes)
Start Audio Engine
Bypass Filter
Step 2 — Spectral Vocoder Synthesis
Vocoder Synthesizer Carrier Engine
Carrier Waveform
Detuned Polyphonic SuperSaw
Single Sawtooth
Pulse / Square (8-Bit Robot)
White Noise (Whisper Mode)
Infrasonic Sub-Black Noise
Fundamental Frequency (F0)
C2 (Deep Sub • 65.4 Hz)
A2 (Baritone • 110.0 Hz)
C3 (Tenor • 130.8 Hz)
F3 (Electro • 174.6 Hz)
A3 (Alto • 220.0 Hz)
Filterbank Bands
16 Bands (Vintage 1970s)
32 Bands (Standard Intelligibility)
64 Bands (HD Spectral Profile)
128 Bands (Ultra HD Formant Profile)
Microphone Gate Threshold
0.008
Formant Shift Factor
1.0x
Formant Drive Boost
3.5x
Vocoder Timbre Presets
Daft SuperSaw
Kraftwerk Pulse
Whisper Noise
Sub-Harmonic Vocoder
Step 2 — Synthesized Noise Carrier Profile
Stochastic Spectral Color & Pre-Resonance
Noise Spectral Slope
White Noise (Flat Power Distribution)
Pink Noise (-3 dB/oct, 1/f)
Brown Noise (-6 dB/oct, 1/f²)
Blue Noise (+3 dB/oct, âf)
Violet Noise (+6 dB/oct, f)
Black Noise (-18 dB/oct, Sub-Audio Infrasonic)
Enable Pre-Filter Resonance
Resonance Topology
Single Center-Peak Bandpass
Multi-Band Center Alignment
Center Frequency (Hz)
800 Hz
Resonance Quality Factor (Q)
6.0
Step 2 — AuraFlow Procedural Water Carrier
Stochastic Hydraulic Sound Model
Water Flavor Topology
Natural Stochastic Flow
Modal Resonant Bank (C Major)
Hydraulic Noise Color
Brownian Deep Stream (-6 dB)
Pink Surface Current (-3 dB)
White Rapids (Flat)
Cutoff Frequency (Hz)
1800 Hz
Step 3 — Direct-Projection Frequency Masking
Parametric Bands & Polarity Router
+ Group
Generate Bands
+ Single Band
Clear
đŤ FILTER OUT (Spectral Notch Rejection)
đŻ FILTER IN (Band-Pass Transmission)
Parametric Modulation Engine (LFO Comb & Subset Rotator)
đ˛ Subset Rotator (Randomized Arpeggiation)
Bypassed
Simultaneously Active Bands (k)
Step Duration (Sec)
Rotation Style
Stochastic Subset
Sequential Arpeggiation
Cluster Shuffle
⥠Dual Comb Modulation LFO
Static
LFO Target
Center Shift (All Frequencies)
Bandwidth Expansion
Step Interval (Harmonic Stretch)
LFO Waveform
Sine
Triangle
Sawtooth
LFO Period (Sec)
LFO Depth (Hz)
Presets & Configuration Portability
Select Factory Preset...
3-Band Acoustic Split
4-Band Spatial Split
50 Hz Comb @ 1 kHz Interval
Sub-Hz Micro Comb
Powerline Hum Notch (50/60 Hz)
Telephone Vocal Bandpass
Export JSON
Import JSON
â
View All Bands
Real-Time Output Spectral Density
Logarithmic Auditory Scale (0.1 Hz â 22 kHz)
0.1 Hz
100 Hz
1 kHz
5 kHz
22 kHz
Linear Frequency Distribution
0 Hz
5.5 kHz
11 kHz
16.5 kHz
22 kHz
Rejected / Notched Spectral Slices
Phase Inverted (-180°)
Live Audio Signal
Engine Telemetry & Verification
Run QA Verification Audit
Live Mic STFT
Engine State
Inactive
Microphone Sink
FILTER OUT
Filter Action
0.00 Hz
Parabolic Peak Estimator
Blackman-Harris
Window Function
0
Active Masks
~21.5 Hz
Bin Bandwidth