Difference Tone Lab

v10 · performance mix

The first key touch starts audio. Both sources and the generated target are audible by default.

220.000 Hz

Δ LOCKED

Equal-tempered note

SOURCE A BASE440.000 Hz

SOURCE B BASE660.000 Hz

AUDIOTap a key

MODULATIONOff

Touch keyboardC3–C4

Octave 3

Press and hold a key; slide across the keyboard for glissando. Release invokes the ADSR release stage.

Sources ↔ generated target Equal-power center

SourcesTarget

Scenes

Parallel source modulation Both sources receive the same additive motion, so Δ remains constant

X: COMMON SOURCE SHIFT · Y: LFO DEPTH

Parallel additive FM
A + m(t), B + m(t): difference unchanged.

Frequency-modulation route LFO waveform

LFO enabled
Pad Y or Depth fader sets amount

Spring X to center
Release removes manual shift

Manual-shift range

Expression padX: stereo separation · Y: nonlinear wet mix

STEREO → · NONLINEAR WET ↑

ADSR amplitude envelopeApplied to sources and target together

Sound and precisionAdvanced controls retain exact numerical access

Source and target fine controls

Source A base440.000 Hz

Button step

Target differenceA3

Button step

Oscillators, trims, and monitoring

Center-balance trims

These establish the relative loudness at the crossfader's center position.

Source A waveform Source B waveform Generated target Listening mode Sample rate Safe ceiling

At high stereo separation, the sources reach different ears more independently. Compare that with mono playback and with the nonlinear stage to distinguish perceptual from downstream intermodulation effects.