ComfyUI-NoiseGen provides tools for experimental audio, harsh noise, and sound design within the ComfyUI environment. All nodes use standard ComfyUI audio format and integrate with existing extensions.

Node Categories:

Generate (4 nodes): Noise sources and chaos systems
Process (10 nodes): Filters, distortion, granular, effects
Utility (5 nodes): Mixing, analysis, output

Installation

cd ComfyUI/custom_nodes
git clone https://github.com/eg0pr0xy/comfyui_noisegen.git
pip install -r comfyui_noisegen/requirements.txt

Node Reference

Generate

NoiseGenerator - Seven noise types with configurable spectral characteristics. White, pink, brown, blue, violet, perlin, and band-limited generation.

PerlinNoise - Organic noise textures using Perlin noise algorithms. Multi-octave generation with persistence control.

BandLimitedNoise - Frequency-constrained noise generation with precise high/low cutoffs.

TrueChaos - Mathematical chaos systems: Lorenz, Chua, Rössler, Henon, Duffing attractors with 4th-order Runge-Kutta integration.

Process

FeedbackProcessor - Delay-based feedback with filtering and modulation. Six modes: simple, filtered, saturated, modulated, complex, runaway.

HarshFilter - Extreme filtering with self-oscillation capabilities. Eight filter types including comb, morph, and chaos modes.

MultiDistortion - Twelve distortion algorithms with multi-stage processing. Tube, transistor, digital, bitcrush, waveshaper, foldback, ring mod, chaos.

SpectralProcessor - FFT-based frequency domain manipulation. Ten modes: enhance, suppress, shift, morph, gate, compress, chaos, phase, vocoder, freeze.

GranularProcessor - Granular synthesis engine with professional controls. Five grain envelopes, positioning modes, pitch manipulation, stereo spread.

GranularSequencer - Pattern-based granular control with step sequencing. Euclidean rhythms, probability gates, swing timing.

MicrosoundSculptor - Extreme granular manipulation for harsh noise and microsound art. Destruction modes with spectral processing.

ModulationMatrix - 8x8 parameter routing system. LFOs, envelope, audio follower, chaos, random, step sequencer sources.

ConvolutionReverb - Impulse response processing with eight reverb types. Hall, room, cathedral, plate, spring, chamber, ambient spaces.

Utility

AudioMixer - Four-channel mixer with gain and pan controls. Professional mixing with master gain.

ChaosNoiseMix - Experimental mixing algorithms. Nine mix modes including XOR, modulo, ring mod, chaos operations.

AudioSave - Enhanced audio output with waveform visualization and metadata. WAV and FLAC export.

AudioAnalyzer - Comprehensive audio analysis with RMS, peak, spectral centroid, frequency band analysis.

SpectrumAnalyzer - Real-time FFT spectrum analysis with magnitude, power, log, mel, bark display modes.

Usage

Basic harsh noise wall:

NoiseGenerator (white) → FeedbackProcessor (complex) → HarshFilter (comb) → MultiDistortion (destruction) → AudioSave

Granular processing:

[Audio Input] → GranularProcessor → MicrosoundSculptor → ConvolutionReverb → AudioSave

External audio processing:

VHS_LoadAudio → SpectralProcessor (chaos) → MultiDistortion → AudioAnalyzer → AudioSave

Technical Notes

All nodes process audio at sample-by-sample level for real-time feedback
Compatible with ComfyUI audio format: {'waveform': torch.tensor, 'sample_rate': int}
Safety limiting prevents system damage from extreme parameter settings
FFT processing uses configurable window sizes (512-8192) and overlap factors
Chaos systems use numerical integration with adaptive step sizing

External Dependencies

Works with VideoHelperSuite (VHS_LoadAudio), ACE-Step sequencers, and other ComfyUI audio extensions. No format conversion required.

License

MIT

Enter the Void

NoiseGen is a gateway to uncharted sonic territories. We invite you to:

Explore the mathematics of chaos
Fork the project and synthesize new realities
Share your sonic experiments
Dissolve the boundaries between signal and noise

Whether you're exploring granular clouds, generative drones, or pure frequency manipulation - your research can help expand our understanding of digital sound art.

"Noise is the voice of technological consciousness." - Zbigniew Karkowski