wmd-gamma-wave-source

WMD Gamma Wave Source

Dual digital wavetable VCO with 8-bit mangling effects

12 HP Eurorack module

The WMD Gamma Wave Source is a dual digital wavetable oscillator packed into 12 HP. Each of its two VCOs reads from a bank of 256 waveforms - scannable by hand or CV - and can be routed through up to two of ten 8-bit 'effects' processors, from digital filters and bit/sample manglers to A+B / A-B wavetable math. A flexible routing matrix decides how the two oscillators pass through the two effect pipelines, so results range from smooth and fat to gloriously lo-fi and edgy.

Features

  • Dual digital wavetable oscillators in 12 HP
  • 256 waveforms per oscillator, selectable by encoder or CV
  • Common 1V/oct input tracks both oscillators
  • Per-oscillator pitch offset in fixed intervals (+4, +7, +12, +24 up; -36 down)
  • Ten 8-bit effects: LPF, HPF, Sharpen, Bit Depth, Bit Flip, Sample Rate, Sample Kill, Sample Polarity, A+B, A-B
  • Four effect pipelines (two per oscillator) with a flexible routing matrix
  • Ten routing modes: parallel, cascaded, cross-fed, cycling and randomized
  • Effect parameters cascade cleanly - first effect's setting is stored
  • Per-oscillator effect-parameter CV (Para CV) with attenuation
  • Wavetable-scan CV inputs with attenuators for morphing timbres
  • Two 7-segment displays show the active wavetable per oscillator
  • A+B / A-B wavetable math for ring-mod-style tones

Controls & Jacks (19)

  • 1V/Oct— Common 1V/oct pitch input; both oscillators track it.
  • Para CV— Effect-parameter CV input for oscillator sections with CV control engaged.
  • WT 1 CV— Wavetable-scan CV input for oscillator 1.
  • WT CV 2— Wavetable-scan CV input for oscillator 2.
  • Out 1— Oscillator 1 audio output, ~5 Vpp.
  • Out 2— Oscillator 2 audio output, ~5 Vpp.
  • Para CV Atten— Attenuates the Para CV effect-parameter modulation depth.
  • Pitch 1— Sets oscillator 1 pitch offset in fixed intervals.
  • WT 1 CV Atten— Attenuates the WT 1 CV wavetable-scan amount.
  • FX Para 1— Adjusts the parameter of the effect on oscillator 1.
  • FX Para 2— Adjusts the parameter of the effect on oscillator 2.
  • WT CV 2 Atten— Attenuates the WT CV 2 wavetable-scan amount.
  • Pitch 2— Sets oscillator 2 pitch offset in fixed intervals.
  • WT 1 Select— Selects oscillator 1's wavetable (1 of 256); push toggles CV control.
  • FX Select— Selects routing / effect in the active column; push switches column.
  • WT 2 Select— Selects oscillator 2's wavetable (1 of 256); push toggles CV control.
  • Routing— Red LED column showing the active oscillator-to-effects routing mode.
  • FX Para 1 CV LED— Lights when Para CV control is active on oscillator 1.
  • FX Para 2 CV LED— Lights when Para CV control is active on oscillator 2.

How-To Guides

  • Basic wavetable voice
  • Two detuned oscillators
  • CV wavetable scanning
  • 8-bit effect mangling
  • Cascade two effects
  • Wavetable math tones

Explore the interactive Gamma Wave Source panel on BleepDex — tap any control to learn what it does.

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