AURAAUDIO
GITHUB ↗

🎛️ PART OF THE AURA AUDIO SUITE — a series of high-performance, Web Audio API DSP experiments.

AURA SUITE

Four modules. One signal path. Frequency, phase, amplitude and micro-time — processed in sequence, explored as instruments.

ENTER THE PATCH BAY ↓ BROWSE MODULES
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SERIES01 / AURA SUITE
MODULES04
ENGINEWEB AUDIO API
SAMPLE RATE48.0 kHz
STATE● STANDBY
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  1. STAGE 01🎛️AuraModulatorFREQUENCY
  2. STAGE 02🌊AuraPhaserPHASE
  3. STAGE 03📏AuraScalerAMPLITUDE / TIME
  4. STAGE 04🌌AuraGranular v2MICRO-TIME & TEXTURE
SCROLL · SIGNAL FLOWS DOWN

SEC.01 — THE MODULES

Four stages. Four domains of the same signal.

Each Aura Suite module owns one region of the audio signal. Patched in order, they form a complete tour of the sound — from pitch, through phase and level, down to the millisecond.

MODULE 01 / 04DOMAIN — FREQUENCY & PITCHBUILD v1.4.0

🎛️AuraModulator

Frequency and Pitch Domain manipulation

Ring modulation, detune matrices and pitch-domain warping. AuraModulator multiplies your signal against internal carriers, folding it into metallic sideband spectra — the tone enters as one pitch and leaves as a constellation of them.

  • Bipolar ring-mod engine with carrier frequency control
  • Pitch detune matrix, ±600 cents per voice
  • Live sideband spectrum visualizer
LAUNCH APP ↗ README ↗
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ENGINEWEB AUDIO API
COREOSC × GAIN MULTIPLY
LATENCY~0 MS
STAGE01 / 04
MODULE 02 / 04DOMAIN — PHASEBUILD v1.2.1

🌊AuraPhaser

Massive parallel All-Pass Filter matrix

Six to eight all-pass stages running in parallel, swept by slow LFOs and folded back through a feedback loop. Phase — not frequency — is the material: waveforms pass through untouched until the stages recombine, combing the spectrum with drifting notches.

  • Parallel all-pass matrix, 6–8 configurable stages
  • LFO sweep with width, rate & polarity invert
  • Feedback path with stereo width spread
LAUNCH APP ↗ README ↗
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ENGINEWEB AUDIO API
CORE8× BIQUAD ALL-PASS
LATENCY~0 MS
STAGE02 / 04
MODULE 03 / 04DOMAIN — AMPLITUDE & TIMEBUILD v1.6.0

📏AuraScaler

Dynamic, Amplitude, and Time-Scale domain processing

Everything about level and duration. Tremolo scalers ride the amplitude domain while delay lines and stretch experiments bend the time domain — loudness and length treated as dials, measured and plotted in real time.

  • Amplitude scaler with envelope-follower mode
  • Time-scale delay network with feedback damping
  • Dynamics readout — RMS, crest factor, duty
LAUNCH APP ↗ README ↗
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ENGINEWEB AUDIO API
COREGAIN × DELAY LINES
LATENCY~0 MS
STAGE03 / 04
MODULE 04 / 04 · FLAGSHIPDOMAIN — MICRO-TIME & TEXTUREBUILD v2.0.3

🌌AuraGranular v2

Micro-Time & Texture

The end of the chain, and the deepest cut. Audio is shattered into grains a few milliseconds long, then scattered, overlapped, jittered and frozen into clouds of texture. v2 rebuilds the grain scheduler around a lookahead queue for glitch-free density at any spray rate.

  • Lookahead grain scheduler — zero-glitch at high density
  • Spray, jitter & reverse controls per grain cloud
  • Micro-time zoom display down to 5 ms windows
LAUNCH APP ↗ README ↗
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ENGINEWEB AUDIO API
COREGRAIN SCHEDULER v2
GRAIN WIN5 – 200 MS
STAGE04 / 04
A rack of modular synthesis hardware, out of focus
“The rack is the interface —
every parameter is an instrument.”
FIG.01 — DESIGN PRINCIPLE OF THE AURA AUDIO SUITE

SEC.02 — LIVE PATCH BAY

Hear the chain. Right here, right now.

A real Web Audio API patch — a test oscillator routed through all four suite stages in order. Power the rack, engage a module, drag its slider. No samples, no audio files: pure DSP in your browser.

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🎛️ MOD
FREQUENCY · RING RATE9.0 Hz
🌊 PHASE
ALL-PASS SWEEP RATE0.35 Hz
📏 SCALE
AMPLITIDE · TIME RATE4.2 Hz
🌌 GRAIN
MICRO-TIME SIZE90 ms
STATE STANDBY SR -- CHAIN MOD ➔ PHASE ➔ SCALE ➔ GRAIN ACTIVE 0 / 4

Tip — engage modules one at a time and listen for the domain change. Headphones recommended.

SEC.03 — DOMAIN MATRIX

The suite, on one spec sheet.

STAGEMODULEDOMAINCORE TECHNIQUESIGNATURE NODESSTATE
01AuraModulatorFrequencyRing modulation · pitch matricesOscillatorNode × GainNode● LIVE
02AuraPhaserPhaseParallel all-pass matrix + LFO sweep8× BiquadFilter (allpass)● LIVE
03AuraScalerAmplitude / TimeTremolo scaling · delay time-warpGainNode × DelayNode● LIVE
04AuraGranular v2Micro-timeLookahead grain schedulerBufferSource cloud × envelopes● LIVE · v2

SEC.04 — CATALOG

📂 The Aura Suite Collection

Explore the other dimensions of audio processing.

01 / FREQ AuraModulatorFrequency and Pitch Domain manipulation. FREQUENCY ↗ 02 / PHASE AuraPhaserMassive parallel All-Pass Filter (Phase) matrix. PHASE ↗ 03 / AMP·T AuraScalerDynamic, Amplitude, and Time-Scale domain processing. AMPLITUDE / TIME ↗ 04 / GRAIN AuraGranular v2YOU ARE HEREMicro-Time & Texture — the flagship of Series 01. MICRO-TIME ↗

THE WIDER CATALOG

AuraAudio holds fewer than 50 experiments and web apps. They are being regrouped into focused series — the Aura Suite is the first grouping, more are on the bench.

SERIES 01 — AURA SUITE4 modules · frequency ➔ micro-time● LIVE
SERIES 02 — [CLASSIFIED]Spectral & spatial experiments◐ IN DEVELOPMENT
SERIES 03 — ARCHIVELegacy single-file sketches○ QUEUED