Signal Lab

Free & educational • Audio‑only: main pitch • A‑set • Solfeggio (AM+FM) • Binaural • Isochronic • Shepard

Transport

Idle

Master gain: 0.12

Learn mode — quick guides

Main Tone

Base pitch; A4=432/438/440/444. Slide and watch Hz.

Binaural

L/R split by small offset (e.g., 10 Hz). Headphones recommended.

Isochronic

On/off gating at a rate. Adjust duty & depth.

Solfeggio

Per‑tone AM (1–4 Hz) + optional FM wobble (± cents). Fixed/Random rates.

Hearing safety: keep levels modest; short sessions; stop if any discomfort.

Main Tone & Binaural

Pitch (4 octaves): A4 — 440.00 Hz Tuning reference (A4):

Enable binaural L/R split Target beat: 10.00 Hz

Waveform

A‑set Multi‑Wave (steady)

Enable A‑set

A‑set: 432, 438, 440, 444 Hz

Bank level: 50%

Solfeggio Bank (AM + optional FM wobble)

Enable Solfeggio bank

AM depth per tone; FM wobble uses same per‑tone rate/phase.

LFO rate min: 1.00 Hz

LFO rate max: 4.00 Hz

AM depth: 70%

Enable FM wobble

FM depth (± cents): 25

Bank level: 50%

Advanced per‑tone editor (fixed rates + phase offsets)

Selected: (none)

Isochronic Pulses

Enable isochronic gating Rate: 10.00 Hz

Duty cycle: 50% Depth: 75%

Shepard Tone

Enable Shepard illusion

Center: 220.0 Hz Rate: 2.00 semitones/s Level: 35%