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.
